diff --git a/hadoop-common-project/hadoop-annotations/src/main/java/org/apache/hadoop/classification/tools/RootDocProcessor.java b/hadoop-common-project/hadoop-annotations/src/main/java/org/apache/hadoop/classification/tools/RootDocProcessor.java index 8042f17b8d9..60c2a6f6e93 100644 --- a/hadoop-common-project/hadoop-annotations/src/main/java/org/apache/hadoop/classification/tools/RootDocProcessor.java +++ b/hadoop-common-project/hadoop-annotations/src/main/java/org/apache/hadoop/classification/tools/RootDocProcessor.java @@ -127,6 +127,10 @@ public Object invoke(Object proxy, Method method, Object[] args) return filter(((ClassDoc) target).constructors(true), ConstructorDoc.class); } + } else { + if (methodName.equals("methods")) { + return filter(((ClassDoc) target).methods(true), MethodDoc.class); + } } } else if (target instanceof PackageDoc) { if (methodName.equals("allClasses")) { diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_API_2.6.0.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_API_2.6.0.xml new file mode 100644 index 00000000000..5d58600a0c5 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_API_2.6.0.xml @@ -0,0 +1,13076 @@ + + + + + + + + + + + + + + + + + + The interface used by clients to obtain a new {@link ApplicationId} for + submitting new applications.

+ +

The ResourceManager responds with a new, monotonically + increasing, {@link ApplicationId} which is used by the client to submit + a new application.

+ +

The ResourceManager also responds with details such + as maximum resource capabilities in the cluster as specified in + {@link GetNewApplicationResponse}.

+ + @param request request to get a new ApplicationId + @return response containing the new ApplicationId to be used + to submit an application + @throws YarnException + @throws IOException + @see #submitApplication(SubmitApplicationRequest)]]> + + + + + + + + The interface used by clients to submit a new application to the + ResourceManager.

+ +

The client is required to provide details such as queue, + {@link Resource} required to run the ApplicationMaster, + the equivalent of {@link ContainerLaunchContext} for launching + the ApplicationMaster etc. via the + {@link SubmitApplicationRequest}.

+ +

Currently the ResourceManager sends an immediate (empty) + {@link SubmitApplicationResponse} on accepting the submission and throws + an exception if it rejects the submission. However, this call needs to be + followed by {@link #getApplicationReport(GetApplicationReportRequest)} + to make sure that the application gets properly submitted - obtaining a + {@link SubmitApplicationResponse} from ResourceManager doesn't guarantee + that RM 'remembers' this application beyond failover or restart. If RM + failover or RM restart happens before ResourceManager saves the + application's state successfully, the subsequent + {@link #getApplicationReport(GetApplicationReportRequest)} will throw + a {@link ApplicationNotFoundException}. The Clients need to re-submit + the application with the same {@link ApplicationSubmissionContext} when + it encounters the {@link ApplicationNotFoundException} on the + {@link #getApplicationReport(GetApplicationReportRequest)} call.

+ +

During the submission process, it checks whether the application + already exists. If the application exists, it will simply return + SubmitApplicationResponse

+ +

In secure mode,the ResourceManager verifies access to + queues etc. before accepting the application submission.

+ + @param request request to submit a new application + @return (empty) response on accepting the submission + @throws YarnException + @throws IOException + @throws InvalidResourceRequestException + The exception is thrown when a {@link ResourceRequest} is out of + the range of the configured lower and upper resource boundaries. + @see #getNewApplication(GetNewApplicationRequest)]]> + + + + + + + + The interface used by clients to request the + ResourceManager to abort submitted application.

+ +

The client, via {@link KillApplicationRequest} provides the + {@link ApplicationId} of the application to be aborted.

+ +

In secure mode,the ResourceManager verifies access to the + application, queue etc. before terminating the application.

+ +

Currently, the ResourceManager returns an empty response + on success and throws an exception on rejecting the request.

+ + @param request request to abort a submitted application + @return ResourceManager returns an empty response + on success and throws an exception on rejecting the request + @throws YarnException + @throws IOException + @see #getQueueUserAcls(GetQueueUserAclsInfoRequest)]]> + + + + + + + + The interface used by clients to get a report of an Application from + the ResourceManager.

+ +

The client, via {@link GetApplicationReportRequest} provides the + {@link ApplicationId} of the application.

+ +

In secure mode,the ResourceManager verifies access to the + application, queue etc. before accepting the request.

+ +

The ResourceManager responds with a + {@link GetApplicationReportResponse} which includes the + {@link ApplicationReport} for the application.

+ +

If the user does not have VIEW_APP access then the + following fields in the report will be set to stubbed values: +

    +
  • host - set to "N/A"
    • +
  • RPC port - set to -1
    • +
  • client token - set to "N/A"
    • +
  • diagnostics - set to "N/A"
    • +
  • tracking URL - set to "N/A"
    • +
  • original tracking URL - set to "N/A"
    • +
  • resource usage report - all values are -1
    • +

+ + @param request request for an application report + @return application report + @throws YarnException + @throws IOException]]> + + + + + + + + The interface used by clients to get metrics about the cluster from + the ResourceManager.

+ +

The ResourceManager responds with a + {@link GetClusterMetricsResponse} which includes the + {@link YarnClusterMetrics} with details such as number of current + nodes in the cluster.

+ + @param request request for cluster metrics + @return cluster metrics + @throws YarnException + @throws IOException]]> + + + + + + + + The interface used by clients to get a report of Applications + matching the filters defined by {@link GetApplicationsRequest} + in the cluster from the ResourceManager.

+ +

The ResourceManager responds with a + {@link GetApplicationsResponse} which includes the + {@link ApplicationReport} for the applications.

+ +

If the user does not have VIEW_APP access for an + application then the corresponding report will be filtered as + described in {@link #getApplicationReport(GetApplicationReportRequest)}. +

+ + @param request request for report on applications + @return report on applications matching the given application types + defined in the request + @throws YarnException + @throws IOException + @see GetApplicationsRequest]]> + + + + + + + + The interface used by clients to get a report of all nodes + in the cluster from the ResourceManager.

+ +

The ResourceManager responds with a + {@link GetClusterNodesResponse} which includes the + {@link NodeReport} for all the nodes in the cluster.

+ + @param request request for report on all nodes + @return report on all nodes + @throws YarnException + @throws IOException]]> + + + + + + + + The interface used by clients to get information about queues + from the ResourceManager.

+ +

The client, via {@link GetQueueInfoRequest}, can ask for details such + as used/total resources, child queues, running applications etc.

+ +

In secure mode,the ResourceManager verifies access before + providing the information.

+ + @param request request to get queue information + @return queue information + @throws YarnException + @throws IOException]]> + + + + + + + + The interface used by clients to get information about queue + acls for current user from the ResourceManager. +

+ +

The ResourceManager responds with queue acls for all + existing queues.

+ + @param request request to get queue acls for current user + @return queue acls for current user + @throws YarnException + @throws IOException]]> + + + + + + + + The interface used by clients to get delegation token, enabling the + containers to be able to talk to the service using those tokens. + +

The ResourceManager responds with the delegation + {@link Token} that can be used by the client to speak to this + service. + @param request request to get a delegation token for the client. + @return delegation token that can be used to talk to this service + @throws YarnException + @throws IOException]]> + + + + + + + + + + + + + + + + + The interface used by clients to get a report of an Application Attempt + from the ResourceManager +

+ +

+ The client, via {@link GetApplicationAttemptReportRequest} provides the + {@link ApplicationAttemptId} of the application attempt. +

+ +

+ In secure mode,the ResourceManager verifies access to + the method before accepting the request. +

+ +

+ The ResourceManager responds with a + {@link GetApplicationAttemptReportResponse} which includes the + {@link ApplicationAttemptReport} for the application attempt. +

+ +

+ If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

    +
  • host
    • +
  • RPC port
    • +
  • client token
    • +
  • diagnostics - set to "N/A"
    • +
  • tracking URL
    • +
+

+ + @param request + request for an application attempt report + @return application attempt report + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of all Application attempts + in the cluster from the ResourceManager +

+ +

+ The ResourceManager responds with a + {@link GetApplicationAttemptsRequest} which includes the + {@link ApplicationAttemptReport} for all the applications attempts of a + specified application attempt. +

+ +

+ If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationAttemptReport(GetApplicationAttemptReportRequest)}. +

+ + @param request + request for reports on all application attempts of an application + @return reports on all application attempts of an application + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of an Container from the + ResourceManager +

+ +

+ The client, via {@link GetContainerReportRequest} provides the + {@link ContainerId} of the container. +

+ +

+ In secure mode,the ResourceManager verifies access to the + method before accepting the request. +

+ +

+ The ResourceManager responds with a + {@link GetContainerReportResponse} which includes the + {@link ContainerReport} for the container. +

+ + @param request + request for a container report + @return container report + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of Containers for an + application attempt from the ResourceManager +

+ +

+ The client, via {@link GetContainersRequest} provides the + {@link ApplicationAttemptId} of the application attempt. +

+ +

+ In secure mode,the ResourceManager verifies access to the + method before accepting the request. +

+ +

+ The ResourceManager responds with a + {@link GetContainersResponse} which includes a list of + {@link ContainerReport} for all the containers of a specific application + attempt. +

+ + @param request + request for a list of container reports of an application attempt. + @return reports on all containers of an application attempt + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to submit a new reservation to the + {@code ResourceManager}. +

+ +

+ The client packages all details of its request in a + {@link ReservationSubmissionRequest} object. This contains information + about the amount of capacity, temporal constraints, and concurrency needs. + Furthermore, the reservation might be composed of multiple stages, with + ordering dependencies among them. +

+ +

+ In order to respond, a new admission control component in the + {@code ResourceManager} performs an analysis of the resources that have + been committed over the period of time the user is requesting, verify that + the user requests can be fulfilled, and that it respect a sharing policy + (e.g., {@code CapacityOverTimePolicy}). Once it has positively determined + that the ReservationSubmissionRequest is satisfiable the + {@code ResourceManager} answers with a + {@link ReservationSubmissionResponse} that include a non-null + {@link ReservationId}. Upon failure to find a valid allocation the response + is an exception with the reason. + + On application submission the client can use this {@link ReservationId} to + obtain access to the reserved resources. +

+ +

+ The system guarantees that during the time-range specified by the user, the + reservationID will be corresponding to a valid reservation. The amount of + capacity dedicated to such queue can vary overtime, depending of the + allocation that has been determined. But it is guaranteed to satisfy all + the constraint expressed by the user in the + {@link ReservationSubmissionRequest}. +

+ + @param request the request to submit a new Reservation + @return response the {@link ReservationId} on accepting the submission + @throws YarnException if the request is invalid or reservation cannot be + created successfully + @throws IOException]]> + + + + + + + + + The interface used by clients to update an existing Reservation. This is + referred to as a re-negotiation process, in which a user that has + previously submitted a Reservation. +

+ +

+ The allocation is attempted by virtually substituting all previous + allocations related to this Reservation with new ones, that satisfy the new + {@link ReservationUpdateRequest}. Upon success the previous allocation is + substituted by the new one, and on failure (i.e., if the system cannot find + a valid allocation for the updated request), the previous allocation + remains valid. + + The {@link ReservationId} is not changed, and applications currently + running within this reservation will automatically receive the resources + based on the new allocation. +

+ + @param request to update an existing Reservation (the ReservationRequest + should refer to an existing valid {@link ReservationId}) + @return response empty on successfully updating the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + updated successfully + @throws IOException]]> + + + + + + + + + The interface used by clients to remove an existing Reservation. + + Upon deletion of a reservation applications running with this reservation, + are automatically downgraded to normal jobs running without any dedicated + reservation. +

+ + @param request to remove an existing Reservation (the ReservationRequest + should refer to an existing valid {@link ReservationId}) + @return response empty on successfully deleting the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + deleted successfully + @throws IOException]]> + + + + + + + + + The interface used by client to get node to labels mappings in existing cluster +

+ + @param request + @return node to labels mappings + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by client to get node labels in the cluster +

+ + @param request to get node labels collection of this cluster + @return node labels collection of this cluster + @throws YarnException + @throws IOException]]> + + + + The protocol between clients and the ResourceManager + to submit/abort jobs and to get information on applications, cluster metrics, + nodes, queues and ACLs.

]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Note: Use $$() method for cross-platform practice i.e. submit an + application from a Windows client to a Linux/Unix server or vice versa. +

]]> + + + + + + + + + final + i.e. they cannot be modified by the applications.]]> + + + + + + + + + + + + The interface used by clients to get a report of an Application from the + ResourceManager. +

+ +

+ The client, via {@link GetApplicationReportRequest} provides the + {@link ApplicationId} of the application. +

+ +

+ In secure mode,the ApplicationHistoryServer verifies access to + the application, queue etc. before accepting the request. +

+ +

+ The ApplicationHistoryServer responds with a + {@link GetApplicationReportResponse} which includes the + {@link ApplicationReport} for the application. +

+ +

+ If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

    +
  • host - set to "N/A"
    • +
  • RPC port - set to -1
    • +
  • client token - set to "N/A"
    • +
  • diagnostics - set to "N/A"
    • +
  • tracking URL - set to "N/A"
    • +
  • original tracking URL - set to "N/A"
    • +
  • resource usage report - all values are -1
    • +
+

+ + @param request + request for an application report + @return application report + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of all Applications in the + cluster from the ApplicationHistoryServer. +

+ +

+ The ApplicationHistoryServer responds with a + {@link GetApplicationsResponse} which includes a list of + {@link ApplicationReport} for all the applications. +

+ +

+ If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(GetApplicationReportRequest)}. +

+ + @param request + request for reports on all the applications + @return report on applications matching the given application types defined + in the request + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of an Application Attempt + from the ApplicationHistoryServer. +

+ +

+ The client, via {@link GetApplicationAttemptReportRequest} provides the + {@link ApplicationAttemptId} of the application attempt. +

+ +

+ In secure mode,the ApplicationHistoryServer verifies access to + the method before accepting the request. +

+ +

+ The ApplicationHistoryServer responds with a + {@link GetApplicationAttemptReportResponse} which includes the + {@link ApplicationAttemptReport} for the application attempt. +

+ +

+ If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

    +
  • host
    • +
  • RPC port
    • +
  • client token
    • +
  • diagnostics - set to "N/A"
    • +
  • tracking URL
    • +
+

+ + @param request + request for an application attempt report + @return application attempt report + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of all Application attempts + in the cluster from the ApplicationHistoryServer. +

+ +

+ The ApplicationHistoryServer responds with a + {@link GetApplicationAttemptsRequest} which includes the + {@link ApplicationAttemptReport} for all the applications attempts of a + specified application attempt. +

+ +

+ If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationAttemptReport(GetApplicationAttemptReportRequest)}. +

+ + @param request + request for reports on all application attempts of an application + @return reports on all application attempts of an application + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of an Container from the + ApplicationHistoryServer. +

+ +

+ The client, via {@link GetContainerReportRequest} provides the + {@link ContainerId} of the container. +

+ +

+ In secure mode,the ApplicationHistoryServer verifies access to + the method before accepting the request. +

+ +

+ The ApplicationHistoryServer responds with a + {@link GetContainerReportResponse} which includes the + {@link ContainerReport} for the container. +

+ + @param request + request for a container report + @return container report + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get a report of Containers for an + application attempt from the ApplciationHistoryServer. +

+ +

+ The client, via {@link GetContainersRequest} provides the + {@link ApplicationAttemptId} of the application attempt. +

+ +

+ In secure mode,the ApplicationHistoryServer verifies access to + the method before accepting the request. +

+ +

+ The ApplicationHistoryServer responds with a + {@link GetContainersResponse} which includes a list of + {@link ContainerReport} for all the containers of a specific application + attempt. +

+ + @param request + request for a list of container reports of an application attempt. + @return reports on all containers of an application attempt + @throws YarnException + @throws IOException]]> + + + + + + + + + The interface used by clients to get delegation token, enabling the + containers to be able to talk to the service using those tokens. +

+ +

+ The ApplicationHistoryServer responds with the delegation + token {@link Token} that can be used by the client to speak to this + service. +

+ + @param request + request to get a delegation token for the client. + @return delegation token that can be used to talk to this service + @throws YarnException + @throws IOException]]> + + + + + The protocol between clients and the ApplicationHistoryServer to + get the information of completed applications etc. +

]]> + + + + + + + + + + + + The interface used by a new ApplicationMaster to register with + the ResourceManager. +

+ +

+ The ApplicationMaster needs to provide details such as RPC + Port, HTTP tracking url etc. as specified in + {@link RegisterApplicationMasterRequest}. +

+ +

+ The ResourceManager responds with critical details such as + maximum resource capabilities in the cluster as specified in + {@link RegisterApplicationMasterResponse}. +

+ + @param request + registration request + @return registration respose + @throws YarnException + @throws IOException + @throws InvalidApplicationMasterRequestException + The exception is thrown when an ApplicationMaster tries to + register more then once. + @see RegisterApplicationMasterRequest + @see RegisterApplicationMasterResponse]]> + + + + + + + + The interface used by an ApplicationMaster to notify the + ResourceManager about its completion (success or failed).

+ +

The ApplicationMaster has to provide details such as + final state, diagnostics (in case of failures) etc. as specified in + {@link FinishApplicationMasterRequest}.

+ +

The ResourceManager responds with + {@link FinishApplicationMasterResponse}.

+ + @param request completion request + @return completion response + @throws YarnException + @throws IOException + @see FinishApplicationMasterRequest + @see FinishApplicationMasterResponse]]> + + + + + + + + + The main interface between an ApplicationMaster and the + ResourceManager. +

+ +

+ The ApplicationMaster uses this interface to provide a list of + {@link ResourceRequest} and returns unused {@link Container} allocated to + it via {@link AllocateRequest}. Optionally, the + ApplicationMaster can also blacklist resources which + it doesn't want to use. +

+ +

+ This also doubles up as a heartbeat to let the + ResourceManager know that the ApplicationMaster + is alive. Thus, applications should periodically make this call to be kept + alive. The frequency depends on + {@link YarnConfiguration#RM_AM_EXPIRY_INTERVAL_MS} which defaults to + {@link YarnConfiguration#DEFAULT_RM_AM_EXPIRY_INTERVAL_MS}. +

+ +

+ The ResourceManager responds with list of allocated + {@link Container}, status of completed containers and headroom information + for the application. +

+ +

+ The ApplicationMaster can use the available headroom + (resources) to decide how to utilized allocated resources and make informed + decisions about future resource requests. +

+ + @param request + allocation request + @return allocation response + @throws YarnException + @throws IOException + @throws InvalidApplicationMasterRequestException + This exception is thrown when an ApplicationMaster calls allocate + without registering first. + @throws InvalidResourceBlacklistRequestException + This exception is thrown when an application provides an invalid + specification for blacklist of resources. + @throws InvalidResourceRequestException + This exception is thrown when a {@link ResourceRequest} is out of + the range of the configured lower and upper limits on the + resources. + @see AllocateRequest + @see AllocateResponse]]> + + + + The protocol between a live instance of ApplicationMaster + and the ResourceManager.

+ +

This is used by the ApplicationMaster to register/unregister + and to request and obtain resources in the cluster from the + ResourceManager.

]]> + + + + + + + + + + + + The ApplicationMaster provides a list of + {@link StartContainerRequest}s to a NodeManager to + start {@link Container}s allocated to it using this interface. +

+ +

+ The ApplicationMaster has to provide details such as allocated + resource capability, security tokens (if enabled), command to be executed + to start the container, environment for the process, necessary + binaries/jar/shared-objects etc. via the {@link ContainerLaunchContext} in + the {@link StartContainerRequest}. +

+ +

+ The NodeManager sends a response via + {@link StartContainersResponse} which includes a list of + {@link Container}s of successfully launched {@link Container}s, a + containerId-to-exception map for each failed {@link StartContainerRequest} in + which the exception indicates errors from per container and a + allServicesMetaData map between the names of auxiliary services and their + corresponding meta-data. Note: None-container-specific exceptions will + still be thrown by the API method itself. +

+

+ The ApplicationMaster can use + {@link #getContainerStatuses(GetContainerStatusesRequest)} to get updated + statuses of the to-be-launched or launched containers. +

+ + @param request + request to start a list of containers + @return response including conatinerIds of all successfully launched + containers, a containerId-to-exception map for failed requests and + a allServicesMetaData map. + @throws YarnException + @throws IOException + @throws NMNotYetReadyException + This exception is thrown when NM starts from scratch but has not + yet connected with RM.]]> + + + + + + + + + The ApplicationMaster requests a NodeManager to + stop a list of {@link Container}s allocated to it using this + interface. +

+ +

+ The ApplicationMaster sends a {@link StopContainersRequest} + which includes the {@link ContainerId}s of the containers to be stopped. +

+ +

+ The NodeManager sends a response via + {@link StopContainersResponse} which includes a list of {@link ContainerId} + s of successfully stopped containers, a containerId-to-exception map for + each failed request in which the exception indicates errors from per + container. Note: None-container-specific exceptions will still be thrown by + the API method itself. ApplicationMaster can use + {@link #getContainerStatuses(GetContainerStatusesRequest)} to get updated + statuses of the containers. +

+ + @param request + request to stop a list of containers + @return response which includes a list of containerIds of successfully + stopped containers, a containerId-to-exception map for failed + requests. + @throws YarnException + @throws IOException]]> + + + + + + + + + The API used by the ApplicationMaster to request for current + statuses of Containers from the NodeManager. +

+ +

+ The ApplicationMaster sends a + {@link GetContainerStatusesRequest} which includes the {@link ContainerId}s + of all containers whose statuses are needed. +

+ +

+ The NodeManager responds with + {@link GetContainerStatusesResponse} which includes a list of + {@link ContainerStatus} of the successfully queried containers and a + containerId-to-exception map for each failed request in which the exception + indicates errors from per container. Note: None-container-specific + exceptions will still be thrown by the API method itself. +

+ + @param request + request to get ContainerStatuses of containers with + the specified ContainerIds + @return response containing the list of ContainerStatus of the + successfully queried containers and a containerId-to-exception map + for failed requests. + + @throws YarnException + @throws IOException]]> + + + + The protocol between an ApplicationMaster and a + NodeManager to start/stop containers and to get status + of running containers.

+ +

If security is enabled the NodeManager verifies that the + ApplicationMaster has truly been allocated the container + by the ResourceManager and also verifies all interactions such + as stopping the container or obtaining status information for the container. +

]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + response id used to track duplicate responses. + @return response id]]> + + + + + + response id used to track duplicate responses. + @param id response id]]> + + + + + current progress of application. + @return current progress of application]]> + + + + + + current progress of application + @param progress current progress of application]]> + + + + + ResourceRequest to update the + ResourceManager about the application's resource requirements. + @return the list of ResourceRequest + @see ResourceRequest]]> + + + + + + ResourceRequest to update the + ResourceManager about the application's resource requirements. + @param resourceRequests list of ResourceRequest to update the + ResourceManager about the application's + resource requirements + @see ResourceRequest]]> + + + + + ContainerId of containers being + released by the ApplicationMaster. + @return list of ContainerId of containers being + released by the ApplicationMaster]]> + + + + + + ContainerId of containers being + released by the ApplicationMaster + @param releaseContainers list of ContainerId of + containers being released by the + ApplicationMaster]]> + + + + + ResourceBlacklistRequest being sent by the + ApplicationMaster. + @return the ResourceBlacklistRequest being sent by the + ApplicationMaster + @see ResourceBlacklistRequest]]> + + + + + + ResourceBlacklistRequest to inform the + ResourceManager about the blacklist additions and removals + per the ApplicationMaster. + + @param resourceBlacklistRequest the ResourceBlacklistRequest + to inform the ResourceManager about + the blacklist additions and removals + per the ApplicationMaster + @see ResourceBlacklistRequest]]> + + + + + ContainerResourceIncreaseRequest being sent by the + ApplicationMaster]]> + + + + + + ContainerResourceIncreaseRequest to inform the + ResourceManager about some container's resources need to be + increased]]> + + + + The core request sent by the ApplicationMaster to the + ResourceManager to obtain resources in the cluster.

+ +

The request includes: +

    +
  • A response id to track duplicate responses.
    • +
  • Progress information.
    • +
  • + A list of {@link ResourceRequest} to inform the + ResourceManager about the application's + resource requirements. +
    • +
  • + A list of unused {@link Container} which are being returned. +
    • +
+

+ + @see ApplicationMasterProtocol#allocate(AllocateRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ResourceManager needs the + ApplicationMaster to take some action then it will send an + AMCommand to the ApplicationMaster. See AMCommand + for details on commands and actions for them. + @return AMCommand if the ApplicationMaster should + take action, null otherwise + @see AMCommand]]> + + + + + last response id. + @return last response id]]> + + + + + newly allocated Container by the + ResourceManager. + @return list of newly allocated Container]]> + + + + + available headroom for resources in the cluster for the + application. + @return limit of available headroom for resources in the cluster for the + application]]> + + + + + completed containers' statuses. + @return the list of completed containers' statuses]]> + + + + + updated NodeReports. Updates could + be changes in health, availability etc of the nodes. + @return The delta of updated nodes since the last response]]> + + + + + + + + + + Get the description of containers owned by the AM, but requested back by + the cluster. Note that the RM may have an inconsistent view of the + resources owned by the AM. These messages are advisory, and the AM may + elect to ignore them.

+ +

The message is a snapshot of the resources the RM wants back from the AM. + While demand persists, the RM will repeat its request; applications should + not interpret each message as a request for additional + resources on top of previous messages. Resources requested consistently + over some duration may be forcibly killed by the RM.

+ + @return A specification of the resources to reclaim from this AM.]]> + + + + + Get the list of NMTokens required for communicating with NM. New NMTokens + issued only if

+

1) AM is receiving first container on underlying NodeManager.
+ OR
+ 2) NMToken master key rolled over in ResourceManager and AM is getting new + container on the same underlying NodeManager.

+

AM will receive one NMToken per NM irrespective of the number of containers + issued on same NM. AM is expected to store these tokens until issued a + new token for the same NM.

]]> + + + + + ResourceManager]]> + + + + + NodeManager]]> + + + + + + + + + The response sent by the ResourceManager the + ApplicationMaster during resource negotiation.

+ +

The response, includes: +

    +
  • Response ID to track duplicate responses.
    • +
  • + An AMCommand sent by ResourceManager to let the ApplicationMaster + take some actions (resync, shutdown etc.). +
  • A list of newly allocated {@link Container}.
    • +
  • A list of completed {@link Container}s' statuses.
    • +
  • + The available headroom for resources in the cluster for the + application. +
    • +
  • A list of nodes whose status has been updated.
    • +
  • The number of available nodes in a cluster.
    • +
  • A description of resources requested back by the cluster
    • +
  • AMRMToken, if AMRMToken has been rolled over
    • +
+

+ + @see ApplicationMasterProtocol#allocate(AllocateRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + final state of the ApplicationMaster. + @return final state of the ApplicationMaster]]> + + + + + + final state of the ApplicationMaster + @param finalState final state of the ApplicationMaster]]> + + + + + diagnostic information on application failure. + @return diagnostic information on application failure]]> + + + + + + diagnostic information on application failure. + @param diagnostics diagnostic information on application failure]]> + + + + + tracking URL for the ApplicationMaster. + This url if contains scheme then that will be used by resource manager + web application proxy otherwise it will default to http. + @return tracking URLfor the ApplicationMaster]]> + + + + + + final tracking URLfor the ApplicationMaster. + This is the web-URL to which ResourceManager or web-application proxy will + redirect client/users once the application is finished and the + ApplicationMaster is gone. +

+ If the passed url has a scheme then that will be used by the + ResourceManager and web-application proxy, otherwise the scheme will + default to http. +

+

+ Empty, null, "N/A" strings are all valid besides a real URL. In case an url + isn't explicitly passed, it defaults to "N/A" on the ResourceManager. +

+ + @param url + tracking URLfor the ApplicationMaster]]> + + + + The finalization request sent by the ApplicationMaster to + inform the ResourceManager about its completion.

+ +

The final request includes details such: +

    +
  • Final state of the ApplicationMaster
    • +
  • + Diagnostic information in case of failure of the + ApplicationMaster +
    • +
  • Tracking URL
    • +
+

+ + @see ApplicationMasterProtocol#finishApplicationMaster(FinishApplicationMasterRequest)]]> + + + + + + + + + + + + + + + The response sent by the ResourceManager to a + ApplicationMaster on it's completion. +

+ +

+ The response, includes: +

    +
  • A flag which indicates that the application has successfully unregistered + with the RM and the application can safely stop.
    • +
+

+ Note: The flag indicates whether the application has successfully + unregistered and is safe to stop. The application may stop after the flag is + true. If the application stops before the flag is true then the RM may retry + the application . + + @see ApplicationMasterProtocol#finishApplicationMaster(FinishApplicationMasterRequest)]]> + + + + + + + + + + + + + ApplicationAttemptId of an application attempt. + + @return ApplicationAttemptId of an application attempt]]> + + + + + + ApplicationAttemptId of an application attempt + + @param applicationAttemptId + ApplicationAttemptId of an application attempt]]> + + + + + The request sent by a client to the ResourceManager to get an + {@link ApplicationAttemptReport} for an application attempt. +

+ +

+ The request should include the {@link ApplicationAttemptId} of the + application attempt. +

+ + @see ApplicationAttemptReport + @see ApplicationHistoryProtocol#getApplicationAttemptReport(GetApplicationAttemptReportRequest)]]> + + + + + + + + + + + + + ApplicationAttemptReport for the application attempt. + + @return ApplicationAttemptReport for the application attempt]]> + + + + + + ApplicationAttemptReport for the application attempt. + + @param applicationAttemptReport + ApplicationAttemptReport for the application attempt]]> + + + + + The response sent by the ResourceManager to a client requesting + an application attempt report. +

+ +

+ The response includes an {@link ApplicationAttemptReport} which has the + details about the particular application attempt +

+ + @see ApplicationAttemptReport + @see ApplicationHistoryProtocol#getApplicationAttemptReport(GetApplicationAttemptReportRequest)]]> + + + + + + + + + + + + + ApplicationId of an application + + @return ApplicationId of an application]]> + + + + + + ApplicationId of an application + + @param applicationId + ApplicationId of an application]]> + + + + + The request from clients to get a list of application attempt reports of an + application from the ResourceManager. +

+ + @see ApplicationHistoryProtocol#getApplicationAttempts(GetApplicationAttemptsRequest)]]> + + + + + + + + + + + + + ApplicationReport of an application. + + @return a list of ApplicationReport of an application]]> + + + + + + ApplicationReport of an application. + + @param applicationAttempts + a list of ApplicationReport of an application]]> + + + + + The response sent by the ResourceManager to a client requesting + a list of {@link ApplicationAttemptReport} for application attempts. +

+ +

+ The ApplicationAttemptReport for each application includes the + details of an application attempt. +

+ + @see ApplicationAttemptReport + @see ApplicationHistoryProtocol#getApplicationAttempts(GetApplicationAttemptsRequest)]]> + + + + + + + + + + + + + ApplicationId of the application. + @return ApplicationId of the application]]> + + + + + + ApplicationId of the application + @param applicationId ApplicationId of the application]]> + + + + The request sent by a client to the ResourceManager to + get an {@link ApplicationReport} for an application.

+ +

The request should include the {@link ApplicationId} of the + application.

+ + @see ApplicationClientProtocol#getApplicationReport(GetApplicationReportRequest) + @see ApplicationReport]]> + + + + + + + + + + ApplicationReport for the application. + @return ApplicationReport for the application]]> + + + + The response sent by the ResourceManager to a client + requesting an application report.

+ +

The response includes an {@link ApplicationReport} which has details such + as user, queue, name, host on which the ApplicationMaster is + running, RPC port, tracking URL, diagnostics, start time etc.

+ + @see ApplicationClientProtocol#getApplicationReport(GetApplicationReportRequest)]]> + + + + + + + + + + + + + + + + + + + + + + The request from clients to get a report of Applications matching the + giving application types in the cluster from the + ResourceManager. +

+ + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest) + +

Setting any of the parameters to null, would just disable that + filter

+ + @param scope {@link ApplicationsRequestScope} to filter by + @param users list of users to filter by + @param queues list of scheduler queues to filter by + @param applicationTypes types of applications + @param applicationTags application tags to filter by + @param applicationStates application states to filter by + @param startRange range of application start times to filter by + @param finishRange range of application finish times to filter by + @param limit number of applications to limit to + @return {@link GetApplicationsRequest} to be used with + {@link ApplicationClientProtocol#getApplications(GetApplicationsRequest)}]]> + + + + + + + The request from clients to get a report of Applications matching the + giving application types in the cluster from the + ResourceManager. +

+ + @param scope {@link ApplicationsRequestScope} to filter by + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> + + + + + + + The request from clients to get a report of Applications matching the + giving application types in the cluster from the + ResourceManager. +

+ + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> + + + + + + + The request from clients to get a report of Applications matching the + giving application states in the cluster from the + ResourceManager. +

+ + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> + + + + + + + + The request from clients to get a report of Applications matching the + giving and application types and application types in the cluster from the + ResourceManager. +

+ + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> + + + + + + + + + + + + + + The request from clients to get a report of Applications + in the cluster from the ResourceManager.

+ + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> + + + + + + + + + + ApplicationReport for applications. + @return ApplicationReport for applications]]> + + + + The response sent by the ResourceManager to a client + requesting an {@link ApplicationReport} for applications.

+ +

The ApplicationReport for each application includes details + such as user, queue, name, host on which the ApplicationMaster + is running, RPC port, tracking URL, diagnostics, start time etc.

+ + @see ApplicationReport + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> + + + + + + + + + + + The request sent by clients to get cluster metrics from the + ResourceManager.

+ +

Currently, this is empty.

+ + @see ApplicationClientProtocol#getClusterMetrics(GetClusterMetricsRequest)]]> + + + + + + + + + + YarnClusterMetrics for the cluster. + @return YarnClusterMetrics for the cluster]]> + + + + The response sent by the ResourceManager to a client + requesting cluster metrics.

+ + @see YarnClusterMetrics + @see ApplicationClientProtocol#getClusterMetrics(GetClusterMetricsRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The request from clients to get a report of all nodes + in the cluster from the ResourceManager.

+ + The request will ask for all nodes in the given {@link NodeState}s. + + @see ApplicationClientProtocol#getClusterNodes(GetClusterNodesRequest)]]> + + + + + + + + + + NodeReport for all nodes in the cluster. + @return NodeReport for all nodes in the cluster]]> + + + + The response sent by the ResourceManager to a client + requesting a {@link NodeReport} for all nodes.

+ +

The NodeReport contains per-node information such as + available resources, number of containers, tracking url, rack name, health + status etc. + + @see NodeReport + @see ApplicationClientProtocol#getClusterNodes(GetClusterNodesRequest)]]> + + + + + + + + + + + + + ContainerId of the Container. + + @return ContainerId of the Container]]> + + + + + + ContainerId of the container + + @param containerId + ContainerId of the container]]> + + + + + The request sent by a client to the ResourceManager to get an + {@link ContainerReport} for a container. +

]]> + + + + + + + + + + + + + ContainerReport for the container. + + @return ContainerReport for the container]]> + + + + + + + + The response sent by the ResourceManager to a client requesting + a container report. +

+ +

+ The response includes a {@link ContainerReport} which has details of a + container. +

]]> + + + + + + + + + + + + + ApplicationAttemptId of an application attempt. + + @return ApplicationAttemptId of an application attempt]]> + + + + + + ApplicationAttemptId of an application attempt + + @param applicationAttemptId + ApplicationAttemptId of an application attempt]]> + + + + + The request from clients to get a list of container reports, which belong to + an application attempt from the ResourceManager. +

+ + @see ApplicationHistoryProtocol#getContainers(GetContainersRequest)]]> + + + + + + + + + + + + + ContainerReport for all the containers of an + application attempt. + + @return a list of ContainerReport for all the containers of an + application attempt]]> + + + + + + ContainerReport for all the containers of an + application attempt. + + @param containers + a list of ContainerReport for all the containers of + an application attempt]]> + + + + + The response sent by the ResourceManager to a client requesting + a list of {@link ContainerReport} for containers. +

+ +

+ The ContainerReport for each container includes the container + details. +

+ + @see ContainerReport + @see ApplicationHistoryProtocol#getContainers(GetContainersRequest)]]> + + + + + + + + + + + + + ContainerIds of containers for which to obtain + the ContainerStatus. + + @return the list of ContainerIds of containers for which to + obtain the ContainerStatus.]]> + + + + + + ContainerIds of containers for which to obtain + the ContainerStatus + + @param containerIds + a list of ContainerIds of containers for which to + obtain the ContainerStatus]]> + + + + + The request sent by the ApplicationMaster to the + NodeManager to get {@link ContainerStatus} of requested + containers. +

+ + @see ContainerManagementProtocol#getContainerStatuses(GetContainerStatusesRequest)]]> + + + + + + + + + + ContainerStatuses of the requested containers. + + @return ContainerStatuses of the requested containers.]]> + + + + + + + + + + The response sent by the NodeManager to the + ApplicationMaster when asked to obtain the + ContainerStatus of requested containers. +

+ + @see ContainerManagementProtocol#getContainerStatuses(GetContainerStatusesRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The request sent by clients to get a new {@link ApplicationId} for + submitting an application.

+ +

Currently, this is empty.

+ + @see ApplicationClientProtocol#getNewApplication(GetNewApplicationRequest)]]> + + + + + + + + + + new ApplicationId allocated by the + ResourceManager. + @return new ApplicationId allocated by the + ResourceManager]]> + + + + + ResourceManager in the cluster. + @return maximum capability of allocated resources in the cluster]]> + + + + The response sent by the ResourceManager to the client for + a request to get a new {@link ApplicationId} for submitting applications.

+ +

Clients can submit an application with the returned + {@link ApplicationId}.

+ + @see ApplicationClientProtocol#getNewApplication(GetNewApplicationRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + queue name for which to get queue information. + @return queue name for which to get queue information]]> + + + + + + queue name for which to get queue information + @param queueName queue name for which to get queue information]]> + + + + + active applications required? + @return true if applications' information is to be included, + else false]]> + + + + + + active applications? + @param includeApplications fetch information about active + applications?]]> + + + + + child queues required? + @return true if information about child queues is required, + else false]]> + + + + + + child queues? + @param includeChildQueues fetch information about child queues?]]> + + + + + child queue hierarchy required? + @return true if information about entire hierarchy is + required, false otherwise]]> + + + + + + child queue hierarchy? + @param recursive fetch information on the entire child queue + hierarchy?]]> + + + + The request sent by clients to get queue information + from the ResourceManager.

+ + @see ApplicationClientProtocol#getQueueInfo(GetQueueInfoRequest)]]> + + + + + + + + + + QueueInfo for the specified queue. + @return QueueInfo for the specified queue]]> + + + + The response sent by the ResourceManager to a client + requesting information about queues in the system.

+ +

The response includes a {@link QueueInfo} which has details such as + queue name, used/total capacities, running applications, child queues etc + .

+ + @see QueueInfo + @see ApplicationClientProtocol#getQueueInfo(GetQueueInfoRequest)]]> + + + + + + + + + + + The request sent by clients to the ResourceManager to + get queue acls for the current user.

+ +

Currently, this is empty.

+ + @see ApplicationClientProtocol#getQueueUserAcls(GetQueueUserAclsInfoRequest)]]> + + + + + + + + + + QueueUserACLInfo per queue for the user. + @return QueueUserACLInfo per queue for the user]]> + + + + The response sent by the ResourceManager to clients + seeking queue acls for the user.

+ +

The response contains a list of {@link QueueUserACLInfo} which + provides information about {@link QueueACL} per queue.

+ + @see QueueACL + @see QueueUserACLInfo + @see ApplicationClientProtocol#getQueueUserAcls(GetQueueUserAclsInfoRequest)]]> + + + + + + + + + + + + + ApplicationId of the application to be aborted. + @return ApplicationId of the application to be aborted]]> + + + + + + + The request sent by the client to the ResourceManager + to abort a submitted application.

+ +

The request includes the {@link ApplicationId} of the application to be + aborted.

+ + @see ApplicationClientProtocol#forceKillApplication(KillApplicationRequest)]]> + + + + + + + + + + + + + + + The response sent by the ResourceManager to the client aborting + a submitted application. +

+

+ The response, includes: +

    +
  • A flag which indicates that the process of killing the application is + completed or not.
    • +
+ Note: user is recommended to wait until this flag becomes true, otherwise if + the ResourceManager crashes before the process of killing the + application is completed, the ResourceManager may retry this + application on recovery. +

+ + @see ApplicationClientProtocol#forceKillApplication(KillApplicationRequest)]]> + + + + + + + + + + + + + + ApplicationId of the application to be moved. + @return ApplicationId of the application to be moved]]> + + + + + + ApplicationId of the application to be moved. + @param appId ApplicationId of the application to be moved]]> + + + + + + + + + + + + + + + The request sent by the client to the ResourceManager + to move a submitted application to a different queue.

+ +

The request includes the {@link ApplicationId} of the application to be + moved and the queue to place it in.

+ + @see ApplicationClientProtocol#moveApplicationAcrossQueues(MoveApplicationAcrossQueuesRequest)]]> + + + + + + + + + + The response sent by the ResourceManager to the client moving + a submitted application to a different queue. +

+

+ A response without exception means that the move has completed successfully. +

+ + @see ApplicationClientProtocol#moveApplicationAcrossQueues(MoveApplicationAcrossQueuesRequest)]]> + + + + + + + + + + + + + RegisterApplicationMasterRequest. + If port, trackingUrl is not used, use the following default value: +
    +
  • port: -1
    • +
  • trackingUrl: null
    • +
+ The port is allowed to be any integer larger than or equal to -1. + @return the new instance of RegisterApplicationMasterRequest]]> + + + + + host on which the ApplicationMaster is + running. + @return host on which the ApplicationMaster is running]]> + + + + + + host on which the ApplicationMaster is + running. + @param host host on which the ApplicationMaster + is running]]> + + + + + RPC port on which the ApplicationMaster + is responding. + @return the RPC port on which the ApplicationMaster is + responding]]> + + + + + + RPC port on which the ApplicationMaster is + responding. + @param port RPC port on which the ApplicationMaster is + responding]]> + + + + + tracking URL for the ApplicationMaster. + This url if contains scheme then that will be used by resource manager + web application proxy otherwise it will default to http. + @return tracking URL for the ApplicationMaster]]> + + + + + + tracking URLfor the ApplicationMaster while + it is running. This is the web-URL to which ResourceManager or + web-application proxy will redirect client/users while the application and + the ApplicationMaster are still running. +

+ If the passed url has a scheme then that will be used by the + ResourceManager and web-application proxy, otherwise the scheme will + default to http. +

+

+ Empty, null, "N/A" strings are all valid besides a real URL. In case an url + isn't explicitly passed, it defaults to "N/A" on the ResourceManager. +

+ + @param trackingUrl + tracking URLfor the ApplicationMaster]]> + + + + The request sent by the ApplicationMaster to + ResourceManager on registration.

+ +

The registration includes details such as: +

    +
  • Hostname on which the AM is running.
    • +
  • RPC Port
    • +
  • Tracking URL
    • +
+

+ + @see ApplicationMasterProtocol#registerApplicationMaster(RegisterApplicationMasterRequest)]]> + + + + + + + + + + ResourceManager in the cluster. + @return maximum capability of allocated resources in the cluster]]> + + + + + ApplicationACLs for the application. + @return all the ApplicationACLs]]> + + + + + Get ClientToAMToken master key.

+

The ClientToAMToken master key is sent to ApplicationMaster + by ResourceManager via {@link RegisterApplicationMasterResponse} + , used to verify corresponding ClientToAMToken.

]]> + + + + + + + + + + + Get the queue that the application was placed in.

]]> + + + + + + Set the queue that the application was placed in.

]]> + + + + + + Get the list of running containers as viewed by + ResourceManager from previous application attempts. +

+ + @return the list of running containers as viewed by + ResourceManager from previous application attempts + @see RegisterApplicationMasterResponse#getNMTokensFromPreviousAttempts()]]> + + + + + + + + + + + + + + The response sent by the ResourceManager to a new + ApplicationMaster on registration.

+ +

The response contains critical details such as: +

    +
  • Maximum capability for allocated resources in the cluster.
    • +
  • ApplicationACLs for the application.
    • +
  • ClientToAMToken master key.
    • +
+

+ + @see ApplicationMasterProtocol#registerApplicationMaster(RegisterApplicationMasterRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ContainerLaunchContext for the container to be started + by the NodeManager. + + @return ContainerLaunchContext for the container to be started + by the NodeManager]]> + + + + + + ContainerLaunchContext for the container to be started + by the NodeManager + @param context ContainerLaunchContext for the container to be + started by the NodeManager]]> + + + + + Get the container token to be used for authorization during starting + container.

+

Note: {@link NMToken} will be used for authenticating communication with + NodeManager.

+ @return the container token to be used for authorization during starting + container. + @see NMToken + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + The request sent by the ApplicationMaster to the + NodeManager to start a container.

+ +

The ApplicationMaster has to provide details such as + allocated resource capability, security tokens (if enabled), command + to be executed to start the container, environment for the process, + necessary binaries/jar/shared-objects etc. via the + {@link ContainerLaunchContext}.

+ + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + The request which contains a list of {@link StartContainerRequest} sent by + the ApplicationMaster to the NodeManager to + start containers. +

+ +

+ In each {@link StartContainerRequest}, the ApplicationMaster has + to provide details such as allocated resource capability, security tokens (if + enabled), command to be executed to start the container, environment for the + process, necessary binaries/jar/shared-objects etc. via the + {@link ContainerLaunchContext}. +

+ + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + + + + ContainerId s of the containers that are + started successfully. + + @return the list of ContainerId s of the containers that are + started successfully. + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + + + + + Get the meta-data from all auxiliary services running on the + NodeManager. +

+

+ The meta-data is returned as a Map between the auxiliary service names and + their corresponding per service meta-data as an opaque blob + ByteBuffer +

+ +

+ To be able to interpret the per-service meta-data, you should consult the + documentation for the Auxiliary-service configured on the NodeManager +

+ + @return a Map between the names of auxiliary services and their + corresponding meta-data]]> + + + + + The response sent by the NodeManager to the + ApplicationMaster when asked to start an allocated + container. +

+ + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + + + + + + + ContainerIds of the containers to be stopped. + @return ContainerIds of containers to be stopped]]> + + + + + + ContainerIds of the containers to be stopped. + @param containerIds ContainerIds of the containers to be stopped]]> + + + + The request sent by the ApplicationMaster to the + NodeManager to stop containers.

+ + @see ContainerManagementProtocol#stopContainers(StopContainersRequest)]]> + + + + + + + + + + + + + + + + + + + + The response sent by the NodeManager to the + ApplicationMaster when asked to stop allocated + containers. +

+ + @see ContainerManagementProtocol#stopContainers(StopContainersRequest)]]> + + + + + + + + + + + + + ApplicationSubmissionContext for the application. + @return ApplicationSubmissionContext for the application]]> + + + + + + ApplicationSubmissionContext for the application. + @param context ApplicationSubmissionContext for the + application]]> + + + + The request sent by a client to submit an application to the + ResourceManager.

+ +

The request, via {@link ApplicationSubmissionContext}, contains + details such as queue, {@link Resource} required to run the + ApplicationMaster, the equivalent of + {@link ContainerLaunchContext} for launching the + ApplicationMaster etc. + + @see ApplicationClientProtocol#submitApplication(SubmitApplicationRequest)]]> + + + + + + + + + The response sent by the ResourceManager to a client on + application submission.

+ +

Currently, this is empty.

+ + @see ApplicationClientProtocol#submitApplication(SubmitApplicationRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ApplicationId of the ApplicationAttempId. + @return ApplicationId of the ApplicationAttempId]]> + + + + + attempt id of the Application. + @return attempt id of the Application]]> + + + + + + + + + + + + + + + + + + ApplicationAttemptId denotes the particular attempt + of an ApplicationMaster for a given {@link ApplicationId}.

+ +

Multiple attempts might be needed to run an application to completion due + to temporal failures of the ApplicationMaster such as hardware + failures, connectivity issues etc. on the node on which it was scheduled.

]]> + + + + + + + + + + YarnApplicationAttemptState of the application attempt. + + @return YarnApplicationAttemptState of the application attempt]]> + + + + + RPC port of this attempt ApplicationMaster. + + @return RPC port of this attempt ApplicationMaster]]> + + + + + host on which this attempt of + ApplicationMaster is running. + + @return host on which this attempt of + ApplicationMaster is running]]> + + + + + diagnositic information of the application attempt in case + of errors. + + @return diagnositic information of the application attempt in case + of errors]]> + + + + + tracking url for the application attempt. + + @return tracking url for the application attempt]]> + + + + + original tracking url for the application attempt. + + @return original tracking url for the application attempt]]> + + + + + ApplicationAttemptId of this attempt of the + application + + @return ApplicationAttemptId of the attempt]]> + + + + + ContainerId of AMContainer for this attempt + + @return ContainerId of the attempt]]> + + + + + ApplicationAttemptReport is a report of an application attempt. +

+ +

+ It includes details such as: +

+

]]> + + + + + + + + + + + ApplicationId + which is unique for all applications started by a particular instance + of the ResourceManager. + @return short integer identifier of the ApplicationId]]> + + + + + start time of the ResourceManager which is + used to generate globally unique ApplicationId. + @return start time of the ResourceManager]]> + + + + + + + + + + + + + + + + + + ApplicationId represents the globally unique + identifier for an application.

+ +

The globally unique nature of the identifier is achieved by using the + cluster timestamp i.e. start-time of the + ResourceManager along with a monotonically increasing counter + for the application.

]]> + + + + + + + + + + ApplicationId of the application. + @return ApplicationId of the application]]> + + + + + ApplicationAttemptId of the current + attempt of the application + @return ApplicationAttemptId of the attempt]]> + + + + + user who submitted the application. + @return user who submitted the application]]> + + + + + queue to which the application was submitted. + @return queue to which the application was submitted]]> + + + + + name of the application. + @return name of the application]]> + + + + + host on which the ApplicationMaster + is running. + @return host on which the ApplicationMaster + is running]]> + + + + + RPC port of the ApplicationMaster. + @return RPC port of the ApplicationMaster]]> + + + + + client token for communicating with the + ApplicationMaster. +

+ ClientToAMToken is the security token used by the AMs to verify + authenticity of any client. +

+ +

+ The ResourceManager, provides a secure token (via + {@link ApplicationReport#getClientToAMToken()}) which is verified by the + ApplicationMaster when the client directly talks to an AM. +

+ @return client token for communicating with the + ApplicationMaster]]> + + + + + YarnApplicationState of the application. + @return YarnApplicationState of the application]]> + + + + + diagnositic information of the application in case of + errors. + @return diagnositic information of the application in case + of errors]]> + + + + + tracking url for the application. + @return tracking url for the application]]> + + + + + start time of the application. + @return start time of the application]]> + + + + + finish time of the application. + @return finish time of the application]]> + + + + + final finish status of the application. + @return final finish status of the application]]> + + + + + + + + + + + + + + + + + + + + + + + + + + The AMRM token is required for AM to RM scheduling operations. For + managed Application Masters Yarn takes care of injecting it. For unmanaged + Applications Masters, the token must be obtained via this method and set + in the {@link org.apache.hadoop.security.UserGroupInformation} of the + current user. +

+ The AMRM token will be returned only if all the following conditions are + met: +

  • +
      the requester is the owner of the ApplicationMaster
    +
      the application master is an unmanaged ApplicationMaster
    +
      the application master is in ACCEPTED state
    +
    • + Else this method returns NULL. + + @return the AM to RM token if available.]]> +     +     + + ApplicationReport is a report of an application.

    + +

    It includes details such as: +

      +
    • {@link ApplicationId} of the application.
      • +
    • Applications user.
      • +
    • Application queue.
      • +
    • Application name.
      • +
    • Host on which the ApplicationMaster is running.
      • +
    • RPC port of the ApplicationMaster.
      • +
    • Tracking URL.
      • +
    • {@link YarnApplicationState} of the application.
      • +
    • Diagnostic information in case of errors.
      • +
    • Start time of the application.
      • +
    • Client {@link Token} of the application (if security is enabled).
      • +
    +

    + + @see ApplicationClientProtocol#getApplicationReport(org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest)]]> +     +     + + + + + + + + + + + + + Resource. -1 for invalid/inaccessible reports. + @return the used Resource]]> + + + + + Resource. -1 for invalid/inaccessible reports. + @return the reserved Resource]]> + + + + + Resource. -1 for invalid/inaccessible reports. + @return the needed Resource]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ApplicationId of the submitted application. + @return ApplicationId of the submitted application]]> + + + + + + ApplicationId of the submitted application. + @param applicationId ApplicationId of the submitted + application]]> + + + + + name. + @return application name]]> + + + + + + name. + @param applicationName application name]]> + + + + + queue to which the application is being submitted. + @return queue to which the application is being submitted]]> + + + + + + queue to which the application is being submitted + @param queue queue to which the application is being submitted]]> + + + + + Priority of the application. + @return Priority of the application]]> + + + + + ContainerLaunchContext to describe the + Container with which the ApplicationMaster is + launched. + @return ContainerLaunchContext for the + ApplicationMaster container]]> + + + + + + ContainerLaunchContext to describe the + Container with which the ApplicationMaster is + launched. + @param amContainer ContainerLaunchContext for the + ApplicationMaster container]]> + + + + + YarnApplicationState. + Such apps will not be retried by the RM on app attempt failure. + The default value is false. + @return true if the AM is not managed by the RM]]> + + + + + + + + + + + + + + + + + + + + + + ApplicationMaster for this + application. Please note this will be DEPRECATED, use getResource + in getAMContainerResourceRequest instead. + + @return the resource required by the ApplicationMaster for + this application.]]> + + + + + + ApplicationMaster for this + application. + + @param resource the resource required by the ApplicationMaster + for this application.]]> + + + + + + + + + + + + + + + + + + + + + + + If the flag is true, running containers will not be killed when application + attempt fails and these containers will be retrieved by the new application + attempt on registration via + {@link ApplicationMasterProtocol#registerApplicationMaster(RegisterApplicationMasterRequest)}. +

    + + @param keepContainers + the flag which indicates whether to keep containers across + application attempts.]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + getResource and getPriority of + ApplicationSubmissionContext. + + Number of containers and Priority will be ignore. + + @return ResourceRequest of AM container]]> + + + + + + + + + + + + + + + + + + + + + + LogAggregationContext of the application + + @return LogAggregationContext of the application]]> + + + + + + LogAggregationContext for the application + + @param logAggregationContext + for the application]]> + + + + + + + + + + + + + + + ApplicationSubmissionContext represents all of the + information needed by the ResourceManager to launch + the ApplicationMaster for an application.

    + +

    It includes details such as: +

      +
    • {@link ApplicationId} of the application.
      • +
    • Application user.
      • +
    • Application name.
      • +
    • {@link Priority} of the application.
      • +
    • + {@link ContainerLaunchContext} of the container in which the + ApplicationMaster is executed. +
      • +
    • maxAppAttempts. The maximum number of application attempts. + It should be no larger than the global number of max attempts in the + Yarn configuration.
      • +
    • attemptFailuresValidityInterval. The default value is -1. + when attemptFailuresValidityInterval in milliseconds is set to > 0, + the failure number will no take failures which happen out of the + validityInterval into failure count. If failure count reaches to + maxAppAttempts, the application will be failed. +
      • +
    • Optional, application-specific {@link LogAggregationContext}
      • +
    +

    + + @see ContainerLaunchContext + @see ApplicationClientProtocol#submitApplication(org.apache.hadoop.yarn.api.protocolrecords.SubmitApplicationRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + Resource allocated to the container. + @return Resource allocated to the container]]> + + + + + Priority at which the Container was + allocated. + @return Priority at which the Container was + allocated]]> + + + + + ContainerToken for the container. +

    ContainerToken is the security token used by the framework + to verify authenticity of any Container.

    + +

    The ResourceManager, on container allocation provides a + secure token which is verified by the NodeManager on + container launch.

    + +

    Applications do not need to care about ContainerToken, they + are transparently handled by the framework - the allocated + Container includes the ContainerToken.

    + + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest) + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest) + + @return ContainerToken for the container]]> +     +     + + Container represents an allocated resource in the cluster. +

    + +

    The ResourceManager is the sole authority to allocate any + Container to applications. The allocated Container + is always on a single node and has a unique {@link ContainerId}. It has + a specific amount of {@link Resource} allocated.

    + +

    It includes details such as: +

      +
    • {@link ContainerId} for the container, which is globally unique.
      • +
    • + {@link NodeId} of the node on which it is allocated. +
      • +
    • HTTP uri of the node.
      • +
    • {@link Resource} allocated to the container.
      • +
    • {@link Priority} at which the container was allocated.
      • +
    • + Container {@link Token} of the container, used to securely verify + authenticity of the allocation. +
      • +
    +

    + +

    Typically, an ApplicationMaster receives the + Container from the ResourceManager during + resource-negotiation and then talks to the NodeManager to + start/stop containers.

    + + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest) + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest) + @see ContainerManagementProtocol#stopContainers(org.apache.hadoop.yarn.api.protocolrecords.StopContainersRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ApplicationAttemptId of the application to which the + Container was assigned. +

    + Note: If containers are kept alive across application attempts via + {@link ApplicationSubmissionContext#setKeepContainersAcrossApplicationAttempts(boolean)} + the ContainerId does not necessarily contain the current + running application attempt's ApplicationAttemptId This + container can be allocated by previously exited application attempt and + managed by the current running attempt thus have the previous application + attempt's ApplicationAttemptId. +

    + + @return ApplicationAttemptId of the application to which the + Container was assigned]]> +     +     + + + ContainerId, + which doesn't include epoch. Note that this method will be marked as + deprecated, so please use getContainerId instead. + @return lower 32 bits of identifier of the ContainerId]]> + + + + + ContainerId. Upper 24 bits are + reserved as epoch of cluster, and lower 40 bits are reserved as + sequential number of containers. + @return identifier of the ContainerId]]> + + + + + + + + + + + + + + + + + + + + + + + + ContainerId represents a globally unique identifier + for a {@link Container} in the cluster.

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + LocalResource required by the container. + @return all LocalResource required by the container]]> + + + + + + LocalResource required by the container. All pre-existing + Map entries are cleared before adding the new Map + @param localResources LocalResource required by the container]]> + + + + + + Get application-specific binary service data. This is a map keyed + by the name of each {@link AuxiliaryService} that is configured on a + NodeManager and value correspond to the application specific data targeted + for the keyed {@link AuxiliaryService}. +

    + +

    + This will be used to initialize this application on the specific + {@link AuxiliaryService} running on the NodeManager by calling + {@link AuxiliaryService#initializeApplication(ApplicationInitializationContext)} +

    + + @return application-specific binary service data]]> +     +     + + + + + Set application-specific binary service data. This is a map keyed + by the name of each {@link AuxiliaryService} that is configured on a + NodeManager and value correspond to the application specific data targeted + for the keyed {@link AuxiliaryService}. All pre-existing Map entries are + preserved. +

    + + @param serviceData + application-specific binary service data]]> +     +     + + + environment variables for the container. + @return environment variables for the container]]> + + + + + + environment variables for the container. All pre-existing Map + entries are cleared before adding the new Map + @param environment environment variables for the container]]> + + + + + commands for launching the container. + @return the list of commands for launching the container]]> + + + + + + commands for launching the container. All + pre-existing List entries are cleared before adding the new List + @param commands the list of commands for launching the container]]> + + + + + ApplicationACLs for the application. + @return all the ApplicationACLs]]> + + + + + + ApplicationACLs for the application. All pre-existing + Map entries are cleared before adding the new Map + @param acls ApplicationACLs for the application]]> + + + + ContainerLaunchContext represents all of the information + needed by the NodeManager to launch a container.

    + +

    It includes details such as: +

      +
    • {@link ContainerId} of the container.
      • +
    • {@link Resource} allocated to the container.
      • +
    • User to whom the container is allocated.
      • +
    • Security tokens (if security is enabled).
      • +
    • + {@link LocalResource} necessary for running the container such + as binaries, jar, shared-objects, side-files etc. +
      • +
    • Optional, application-specific binary service data.
      • +
    • Environment variables for the launched process.
      • +
    • Command to launch the container.
      • +
    +

    + + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + ContainerId of the container. + + @return ContainerId of the container.]]> + + + + + + + + Resource of the container. + + @return allocated Resource of the container.]]> + + + + + + + + NodeId where container is running. + + @return allocated NodeId where container is running.]]> + + + + + + + + Priority of the container. + + @return allocated Priority of the container.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ContainerState of the container. + + @return final ContainerState of the container.]]> + + + + + + + + exit status of the container. + + @return final exit status of the container.]]> + + + + + + + + ContainerReport is a report of an container. +

    + +

    + It includes details such as: +

      +
    • {@link ContainerId} of the container.
      • +
    • Allocated Resources to the container.
      • +
    • Assigned Node id.
      • +
    • Assigned Priority.
      • +
    • Creation Time.
      • +
    • Finish Time.
      • +
    • Container Exit Status.
      • +
    • {@link ContainerState} of the container.
      • +
    • Diagnostic information in case of errors.
      • +
    • Log URL.
      • +
    +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + State of a Container.

    ]]> +     +     + + + + + + + + ContainerId of the container. + @return ContainerId of the container]]> + + + + + ContainerState of the container. + @return ContainerState of the container]]> + + + + + Get the exit status for the container.

    + +

    Note: This is valid only for completed containers i.e. containers + with state {@link ContainerState#COMPLETE}. + Otherwise, it returns an ContainerExitStatus.INVALID. +

    + +

    Containers killed by the framework, either due to being released by + the application or being 'lost' due to node failures etc. have a special + exit code of ContainerExitStatus.ABORTED.

    + +

    When threshold number of the nodemanager-local-directories or + threshold number of the nodemanager-log-directories become bad, then + container is not launched and is exited with ContainersExitStatus.DISKS_FAILED. +

    + + @return exit status for the container]]> +     +     + + + diagnostic messages for failed containers. + @return diagnostic messages for failed containers]]> + + + + ContainerStatus represents the current status of a + Container.

    + +

    It provides details such as: +

      +
    • ContainerId of the container.
      • +
    • ContainerState of the container.
      • +
    • Exit status of a completed container.
      • +
    • Diagnostic message for a failed container.
      • +
    +

    ]]> +     +     + + + + + + + + + + Application.]]> + + + + + + + + + + + + + + + + + + + + + + + + + location of the resource to be localized. + @return location of the resource to be localized]]> + + + + + + location of the resource to be localized. + @param resource location of the resource to be localized]]> + + + + + size of the resource to be localized. + @return size of the resource to be localized]]> + + + + + + size of the resource to be localized. + @param size size of the resource to be localized]]> + + + + + timestamp of the resource to be localized, used + for verification. + @return timestamp of the resource to be localized]]> + + + + + + timestamp of the resource to be localized, used + for verification. + @param timestamp timestamp of the resource to be localized]]> + + + + + LocalResourceType of the resource to be localized. + @return LocalResourceType of the resource to be localized]]> + + + + + + LocalResourceType of the resource to be localized. + @param type LocalResourceType of the resource to be localized]]> + + + + + LocalResourceVisibility of the resource to be + localized. + @return LocalResourceVisibility of the resource to be + localized]]> + + + + + + LocalResourceVisibility of the resource to be + localized. + @param visibility LocalResourceVisibility of the resource to be + localized]]> + + + + + pattern that should be used to extract entries from the + archive (only used when type is PATTERN). + @return pattern that should be used to extract entries from the + archive.]]> + + + + + + pattern that should be used to extract entries from the + archive (only used when type is PATTERN). + @param pattern pattern that should be used to extract entries + from the archive.]]> + + + + LocalResource represents a local resource required to + run a container.

    + +

    The NodeManager is responsible for localizing the resource + prior to launching the container.

    + +

    Applications can specify {@link LocalResourceType} and + {@link LocalResourceVisibility}.

    + + @see LocalResourceType + @see LocalResourceVisibility + @see ContainerLaunchContext + @see ApplicationSubmissionContext + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + + + LocalResourceType specifies the type + of a resource localized by the NodeManager.

    + +

    The type can be one of: +

      +
    • + {@link #FILE} - Regular file i.e. uninterpreted bytes. +
      • +
    • + {@link #ARCHIVE} - Archive, which is automatically unarchived by the + NodeManager. +
      • +
    • + {@link #PATTERN} - A hybrid between {@link #ARCHIVE} and {@link #FILE}. +
    +

    + + @see LocalResource + @see ContainerLaunchContext + @see ApplicationSubmissionContext + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + + + LocalResourceVisibility specifies the visibility + of a resource localized by the NodeManager.

    + +

    The visibility can be one of: +

      +
    • {@link #PUBLIC} - Shared by all users on the node.
      • +
    • + {@link #PRIVATE} - Shared among all applications of the + same user on the node. +
      • +
    • + {@link #APPLICATION} - Shared only among containers of the + same application on the node. +
      • +
    +

    + + @see LocalResource + @see ContainerLaunchContext + @see ApplicationSubmissionContext + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + LogAggregationContext represents all of the + information needed by the NodeManager to handle + the logs for an application.

    + +

    It includes details such as: +

      +
    • includePattern. It uses Java Regex to filter the log files + which match the defined include pattern and those log files + will be uploaded.
      • +
    • excludePattern. It uses Java Regex to filter the log files + which match the defined exclude pattern and those log files + will not be uploaded. If the log file name matches both the + include and the exclude pattern, this file will be excluded eventually
      • +
    +

    + + @see ApplicationSubmissionContext]]> +     +     + + + + + + + + NodeManager for which the NMToken + is used to authenticate. + @return the {@link NodeId} of the NodeManager for which the + NMToken is used to authenticate.]]> + + + + + + + + NodeManager + @return the {@link Token} used for authenticating with NodeManager]]> + + + + + + + + + + + + The NMToken is used for authenticating communication with + NodeManager

    +

    It is issued by ResourceMananger when ApplicationMaster + negotiates resource with ResourceManager and + validated on NodeManager side.

    + @see AllocateResponse#getNMTokens()]]> +     +     + + + + + + + + + hostname of the node. + @return hostname of the node]]> + + + + + port for communicating with the node. + @return port for communicating with the node]]> + + + + + + + + + + + + + + + + NodeId is the unique identifier for a node.

    + +

    It includes the hostname and port to uniquely + identify the node. Thus, it is unique across restarts of any + NodeManager.

    ]]> +     +     + + + + + + + + NodeId of the node. + @return NodeId of the node]]> + + + + + NodeState of the node. + @return NodeState of the node]]> + + + + + http address of the node. + @return http address of the node]]> + + + + + rack name for the node. + @return rack name for the node]]> + + + + + used Resource on the node. + @return used Resource on the node]]> + + + + + total Resource on the node. + @return total Resource on the node]]> + + + + + diagnostic health report of the node. + @return diagnostic health report of the node]]> + + + + + last timestamp at which the health report was received. + @return last timestamp at which the health report was received]]> + + + + + + + + + NodeReport is a summary of runtime information of a + node in the cluster.

    + +

    It includes details such as: +

      +
    • {@link NodeId} of the node.
      • +
    • HTTP Tracking URL of the node.
      • +
    • Rack name for the node.
      • +
    • Used {@link Resource} on the node.
      • +
    • Total available {@link Resource} of the node.
      • +
    • Number of running containers on the node.
      • +
    +

    + + @see ApplicationClientProtocol#getClusterNodes(org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesRequest)]]> +     +     + + + + + + + + + + + + State of a Node.

    ]]> +     +     + + + + + + + + + + + + ResourceManager. + @see PreemptionContract + @see StrictPreemptionContract]]> + + + + + + + + + + ApplicationMaster about resources requested back by the + ResourceManager. + @see AllocateRequest#setAskList(List)]]> + + + + + ApplicationMaster that may be reclaimed by the + ResourceManager. If the AM prefers a different set of + containers, then it may checkpoint or kill containers matching the + description in {@link #getResourceRequest}. + @return Set of containers at risk if the contract is not met.]]> + + + + ResourceManager. + The ApplicationMaster (AM) can satisfy this request according + to its own priorities to prevent containers from being forcibly killed by + the platform. + @see PreemptionMessage]]> + + + + + + + + + + ResourceManager]]> + + + + + + + + + A {@link PreemptionMessage} is part of the RM-AM protocol, and it is used by + the RM to specify resources that the RM wants to reclaim from this + ApplicationMaster (AM). The AM receives a {@link + StrictPreemptionContract} message encoding which containers the platform may + forcibly kill, granting it an opportunity to checkpoint state or adjust its + execution plan. The message may also include a {@link PreemptionContract} + granting the AM more latitude in selecting which resources to return to the + cluster.

    + +

    The AM should decode both parts of the message. The {@link + StrictPreemptionContract} specifies particular allocations that the RM + requires back. The AM can checkpoint containers' state, adjust its execution + plan to move the computation, or take no action and hope that conditions that + caused the RM to ask for the container will change.

    + +

    In contrast, the {@link PreemptionContract} also includes a description of + resources with a set of containers. If the AM releases containers matching + that profile, then the containers enumerated in {@link + PreemptionContract#getContainers()} may not be killed.

    + +

    Each preemption message reflects the RM's current understanding of the + cluster state, so a request to return N containers may not + reflect containers the AM is releasing, recently exited containers the RM has + yet to learn about, or new containers allocated before the message was + generated. Conversely, an RM may request a different profile of containers in + subsequent requests.

    + +

    The policy enforced by the RM is part of the scheduler. Generally, only + containers that have been requested consistently should be killed, but the + details are not specified.

    ]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + QueueACL enumerates the various ACLs for queues. +

    + +

    + The ACL is one of: +

      +
    • {@link #SUBMIT_APPLICATIONS} - ACL to submit applications to the + queue.
      • +
    • {@link #ADMINISTER_QUEUE} - ACL to administer the queue.
      • +
    +

    + + @see QueueInfo + @see ApplicationClientProtocol#getQueueUserAcls(org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + + + name of the queue. + @return name of the queue]]> + + + + + configured capacity of the queue. + @return configured capacity of the queue]]> + + + + + maximum capacity of the queue. + @return maximum capacity of the queue]]> + + + + + current capacity of the queue. + @return current capacity of the queue]]> + + + + + child queues of the queue. + @return child queues of the queue]]> + + + + + running applications of the queue. + @return running applications of the queue]]> + + + + + QueueState of the queue. + @return QueueState of the queue]]> + + + + + accessible node labels of the queue. + @return accessible node labels of the queue]]> + + + + + default node label expression of the queue, this takes + affect only when the ApplicationSubmissionContext and + ResourceRequest don't specify their + NodeLabelExpression. + + @return default node label expression of the queue]]> + + + + + + + QueueInfo is a report of the runtime information of the queue.

    + +

    It includes information such as: +

      +
    • Queue name.
      • +
    • Capacity of the queue.
      • +
    • Maximum capacity of the queue.
      • +
    • Current capacity of the queue.
      • +
    • Child queues.
      • +
    • Running applications.
      • +
    • {@link QueueState} of the queue.
      • +
    +

    + + @see QueueState + @see ApplicationClientProtocol#getQueueInfo(org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoRequest)]]> +     +     + + + + + + + + + + State of a Queue.

    + +

    A queue is in one of: +

      +
    • {@link #RUNNING} - normal state.
      • +
    • {@link #STOPPED} - not accepting new application submissions. +
    +

    + + @see QueueInfo + @see ApplicationClientProtocol#getQueueInfo(org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoRequest)]]> +     +     + + + + + + + + queue name of the queue. + @return queue name of the queue]]> + + + + + QueueACL for the given user. + @return list of QueueACL for the given user]]> + + + + QueueUserACLInfo provides information {@link QueueACL} for + the given user.

    + + @see QueueACL + @see ApplicationClientProtocol#getQueueUserAcls(org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + start time of the {@code ResourceManager} which is used to + generate globally unique {@link ReservationId}. + + @return start time of the {@code ResourceManager}]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + {@link ReservationId} represents the globally unique identifier for + a reservation. +

    + +

    + The globally unique nature of the identifier is achieved by using the + cluster timestamp i.e. start-time of the {@code ResourceManager} + along with a monotonically increasing counter for the reservation. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + {@link ReservationRequest} represents the request made by an application to + the {@code ResourceManager} to reserve {@link Resource}s. +

    + +

    + It includes: +

      +
    • {@link Resource} required for each request.
      • +
    • + Number of containers, of above specifications, which are required by the + application.
      • +
    • + Concurrency that indicates the gang size of the request.
      • +
    +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + memory of the resource. + @return memory of the resource]]> + + + + + + memory of the resource. + @param memory memory of the resource]]> + + + + + number of virtual cpu cores of the resource. + + Virtual cores are a unit for expressing CPU parallelism. A node's capacity + should be configured with virtual cores equal to its number of physical cores. + A container should be requested with the number of cores it can saturate, i.e. + the average number of threads it expects to have runnable at a time. + + @return num of virtual cpu cores of the resource]]> + + + + + + number of virtual cpu cores of the resource. + + Virtual cores are a unit for expressing CPU parallelism. A node's capacity + should be configured with virtual cores equal to its number of physical cores. + A container should be requested with the number of cores it can saturate, i.e. + the average number of threads it expects to have runnable at a time. + + @param vCores number of virtual cpu cores of the resource]]> + + + + + + + + + + + Resource models a set of computer resources in the + cluster.

    + +

    Currently it models both memory and CPU.

    + +

    The unit for memory is megabytes. CPU is modeled with virtual cores + (vcores), a unit for expressing parallelism. A node's capacity should + be configured with virtual cores equal to its number of physical cores. A + container should be requested with the number of cores it can saturate, i.e. + the average number of threads it expects to have runnable at a time.

    + +

    Virtual cores take integer values and thus currently CPU-scheduling is + very coarse. A complementary axis for CPU requests that represents processing + power will likely be added in the future to enable finer-grained resource + configuration.

    + +

    Typically, applications request Resource of suitable + capability to run their component tasks.

    + + @see ResourceRequest + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + blacklist of resources + for the application. + + @see ResourceRequest + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + host/rack string represents an arbitrary + host name. + + @param hostName host/rack on which the allocation is desired + @return whether the given host/rack string represents an arbitrary + host name]]> + + + + + Priority of the request. + @return Priority of the request]]> + + + + + + Priority of the request + @param priority Priority of the request]]> + + + + + host/rack) on which the allocation + is desired. + + A special value of * signifies that any resource + (host/rack) is acceptable. + + @return resource (e.g. host/rack) on which the allocation + is desired]]> + + + + + + host/rack) on which the allocation + is desired. + + A special value of * signifies that any resource name + (e.g. host/rack) is acceptable. + + @param resourceName (e.g. host/rack) on which the + allocation is desired]]> + + + + + Resource capability of the request. + @return Resource capability of the request]]> + + + + + + Resource capability of the request + @param capability Resource capability of the request]]> + + + + + + + + + + + + + + + + ResourceRequest. Defaults to true. + + @return whether locality relaxation is enabled with this + ResourceRequest.]]> + + + + + + For a request at a network hierarchy level, set whether locality can be relaxed + to that level and beyond.

    + +

    If the flag is off on a rack-level ResourceRequest, + containers at that request's priority will not be assigned to nodes on that + request's rack unless requests specifically for those nodes have also been + submitted.

    + +

    If the flag is off on an {@link ResourceRequest#ANY}-level + ResourceRequest, containers at that request's priority will + only be assigned on racks for which specific requests have also been + submitted.

    + +

    For example, to request a container strictly on a specific node, the + corresponding rack-level and any-level requests should have locality + relaxation set to false. Similarly, to request a container strictly on a + specific rack, the corresponding any-level request should have locality + relaxation set to false.

    + + @param relaxLocality whether locality relaxation is enabled with this + ResourceRequest.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + ResourceRequest represents the request made by an + application to the ResourceManager to obtain various + Container allocations.

    + +

    It includes: +

      +
    • {@link Priority} of the request.
      • +
    • + The name of the machine or rack on which the allocation is + desired. A special value of * signifies that + any host/rack is acceptable to the application. +
      • +
    • {@link Resource} required for each request.
      • +
    • + Number of containers, of above specifications, which are required + by the application. +
      • +
    • + A boolean relaxLocality flag, defaulting to true, + which tells the ResourceManager if the application wants + locality to be loose (i.e. allows fall-through to rack or any) + or strict (i.e. specify hard constraint on resource allocation). +
      • +
    +

    + + @see Resource + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + ApplicationMaster that may be reclaimed by the + ResourceManager. + @return the set of {@link ContainerId} to be preempted.]]> + + + + ApplicationMaster (AM) + may attempt to checkpoint work or adjust its execution plan to accommodate + it. In contrast to {@link PreemptionContract}, the AM has no flexibility in + selecting which resources to return to the cluster. + @see PreemptionMessage]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Token is the security entity used by the framework + to verify authenticity of any resource.

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + URL represents a serializable {@link java.net.URL}.

    ]]> +     +     + + + + + + + + + + RMAppAttempt.]]> + + + + + + + + + + + + ApplicationMaster.]]> + + + + + + + + + + NodeManagers in the cluster. + @return number of NodeManagers in the cluster]]> + + + + YarnClusterMetrics represents cluster metrics.

    + +

    Currently only number of NodeManagers is provided.

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + This class contains the information about a timeline domain, which is used + to a user to host a number of timeline entities, isolating them from others'. + The user can also define the reader and writer users/groups for the the + domain, which is used to control the access to its entities. +

    + +

    + The reader and writer users/groups pattern that the user can supply is the + same as what AccessControlList takes. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The class that contains the the meta information of some conceptual entity + and its related events. The entity can be an application, an application + attempt, a container or whatever the user-defined object. +

    + +

    + Primary filters will be used to index the entities in + TimelineStore, such that users should carefully choose the + information they want to store as the primary filters. The remaining can be + stored as other information. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + + + + + + + + + + + + + name property as a + InetSocketAddress. On a HA cluster, + this fetches the address corresponding to the RM identified by + {@link #RM_HA_ID}. + @param name property name. + @param defaultAddress the default value + @param defaultPort the default port + @return InetSocketAddress]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Default platform-specific CLASSPATH for YARN applications. A + comma-separated list of CLASSPATH entries constructed based on the client + OS environment expansion syntax. +

    +

    + Note: Use {@link DEFAULT_YARN_CROSS_PLATFORM_APPLICATION_CLASSPATH} for + cross-platform practice i.e. submit an application from a Windows client to + a Linux/Unix server or vice versa. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The information is passed along to applications via + {@link StartContainersResponse#getAllServicesMetaData()} that is returned by + {@link ContainerManagementProtocol#startContainers(StartContainersRequest)} +

    + + @return meta-data for this service that should be made available to + applications.]]> +     +     + + + + + + + + + + + + + + + + + + + + + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_API_2.7.2.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_API_2.7.2.xml new file mode 100644 index 00000000000..ff01b262d26 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_API_2.7.2.xml @@ -0,0 +1,13692 @@ + + + + + + + + + + + + + + + + + + The interface used by clients to obtain a new {@link ApplicationId} for + submitting new applications.

    + +

    The ResourceManager responds with a new, monotonically + increasing, {@link ApplicationId} which is used by the client to submit + a new application.

    + +

    The ResourceManager also responds with details such + as maximum resource capabilities in the cluster as specified in + {@link GetNewApplicationResponse}.

    + + @param request request to get a new ApplicationId + @return response containing the new ApplicationId to be used + to submit an application + @throws YarnException + @throws IOException + @see #submitApplication(SubmitApplicationRequest)]]> +     +     + + + + + + The interface used by clients to submit a new application to the + ResourceManager.

    + +

    The client is required to provide details such as queue, + {@link Resource} required to run the ApplicationMaster, + the equivalent of {@link ContainerLaunchContext} for launching + the ApplicationMaster etc. via the + {@link SubmitApplicationRequest}.

    + +

    Currently the ResourceManager sends an immediate (empty) + {@link SubmitApplicationResponse} on accepting the submission and throws + an exception if it rejects the submission. However, this call needs to be + followed by {@link #getApplicationReport(GetApplicationReportRequest)} + to make sure that the application gets properly submitted - obtaining a + {@link SubmitApplicationResponse} from ResourceManager doesn't guarantee + that RM 'remembers' this application beyond failover or restart. If RM + failover or RM restart happens before ResourceManager saves the + application's state successfully, the subsequent + {@link #getApplicationReport(GetApplicationReportRequest)} will throw + a {@link ApplicationNotFoundException}. The Clients need to re-submit + the application with the same {@link ApplicationSubmissionContext} when + it encounters the {@link ApplicationNotFoundException} on the + {@link #getApplicationReport(GetApplicationReportRequest)} call.

    + +

    During the submission process, it checks whether the application + already exists. If the application exists, it will simply return + SubmitApplicationResponse

    + +

    In secure mode,the ResourceManager verifies access to + queues etc. before accepting the application submission.

    + + @param request request to submit a new application + @return (empty) response on accepting the submission + @throws YarnException + @throws IOException + @see #getNewApplication(GetNewApplicationRequest)]]> +     +     + + + + + + The interface used by clients to request the + ResourceManager to abort submitted application.

    + +

    The client, via {@link KillApplicationRequest} provides the + {@link ApplicationId} of the application to be aborted.

    + +

    In secure mode,the ResourceManager verifies access to the + application, queue etc. before terminating the application.

    + +

    Currently, the ResourceManager returns an empty response + on success and throws an exception on rejecting the request.

    + + @param request request to abort a submitted application + @return ResourceManager returns an empty response + on success and throws an exception on rejecting the request + @throws YarnException + @throws IOException + @see #getQueueUserAcls(GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + The interface used by clients to get metrics about the cluster from + the ResourceManager.

    + +

    The ResourceManager responds with a + {@link GetClusterMetricsResponse} which includes the + {@link YarnClusterMetrics} with details such as number of current + nodes in the cluster.

    + + @param request request for cluster metrics + @return cluster metrics + @throws YarnException + @throws IOException]]> +     +     + + + + + + The interface used by clients to get a report of all nodes + in the cluster from the ResourceManager.

    + +

    The ResourceManager responds with a + {@link GetClusterNodesResponse} which includes the + {@link NodeReport} for all the nodes in the cluster.

    + + @param request request for report on all nodes + @return report on all nodes + @throws YarnException + @throws IOException]]> +     +     + + + + + + The interface used by clients to get information about queues + from the ResourceManager.

    + +

    The client, via {@link GetQueueInfoRequest}, can ask for details such + as used/total resources, child queues, running applications etc.

    + +

    In secure mode,the ResourceManager verifies access before + providing the information.

    + + @param request request to get queue information + @return queue information + @throws YarnException + @throws IOException]]> +     +     + + + + + + The interface used by clients to get information about queue + acls for current user from the ResourceManager. +

    + +

    The ResourceManager responds with queue acls for all + existing queues.

    + + @param request request to get queue acls for current user + @return queue acls for current user + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + + + + + + + + The interface used by clients to submit a new reservation to the + {@code ResourceManager}. +

    + +

    + The client packages all details of its request in a + {@link ReservationSubmissionRequest} object. This contains information + about the amount of capacity, temporal constraints, and concurrency needs. + Furthermore, the reservation might be composed of multiple stages, with + ordering dependencies among them. +

    + +

    + In order to respond, a new admission control component in the + {@code ResourceManager} performs an analysis of the resources that have + been committed over the period of time the user is requesting, verify that + the user requests can be fulfilled, and that it respect a sharing policy + (e.g., {@code CapacityOverTimePolicy}). Once it has positively determined + that the ReservationSubmissionRequest is satisfiable the + {@code ResourceManager} answers with a + {@link ReservationSubmissionResponse} that include a non-null + {@link ReservationId}. Upon failure to find a valid allocation the response + is an exception with the reason. + + On application submission the client can use this {@link ReservationId} to + obtain access to the reserved resources. +

    + +

    + The system guarantees that during the time-range specified by the user, the + reservationID will be corresponding to a valid reservation. The amount of + capacity dedicated to such queue can vary overtime, depending of the + allocation that has been determined. But it is guaranteed to satisfy all + the constraint expressed by the user in the + {@link ReservationSubmissionRequest}. +

    + + @param request the request to submit a new Reservation + @return response the {@link ReservationId} on accepting the submission + @throws YarnException if the request is invalid or reservation cannot be + created successfully + @throws IOException]]> +     +     + + + + + + + The interface used by clients to update an existing Reservation. This is + referred to as a re-negotiation process, in which a user that has + previously submitted a Reservation. +

    + +

    + The allocation is attempted by virtually substituting all previous + allocations related to this Reservation with new ones, that satisfy the new + {@link ReservationUpdateRequest}. Upon success the previous allocation is + substituted by the new one, and on failure (i.e., if the system cannot find + a valid allocation for the updated request), the previous allocation + remains valid. + + The {@link ReservationId} is not changed, and applications currently + running within this reservation will automatically receive the resources + based on the new allocation. +

    + + @param request to update an existing Reservation (the ReservationRequest + should refer to an existing valid {@link ReservationId}) + @return response empty on successfully updating the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + updated successfully + @throws IOException]]> +     +     + + + + + + + The interface used by clients to remove an existing Reservation. + + Upon deletion of a reservation applications running with this reservation, + are automatically downgraded to normal jobs running without any dedicated + reservation. +

    + + @param request to remove an existing Reservation (the ReservationRequest + should refer to an existing valid {@link ReservationId}) + @return response empty on successfully deleting the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + deleted successfully + @throws IOException]]> +     +     + + + + + + + The interface used by client to get node to labels mappings in existing cluster +

    + + @param request + @return node to labels mappings + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The interface used by client to get labels to nodes mappings + in existing cluster +

    + + @param request + @return labels to nodes mappings + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The interface used by client to get node labels in the cluster +

    + + @param request to get node labels collection of this cluster + @return node labels collection of this cluster + @throws YarnException + @throws IOException]]> +     +     + + The protocol between clients and the ResourceManager + to submit/abort jobs and to get information on applications, cluster metrics, + nodes, queues and ACLs.

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Note: Use $$() method for cross-platform practice i.e. submit an + application from a Windows client to a Linux/Unix server or vice versa. +

    ]]> +     +     + + + + + + + final + i.e. they cannot be modified by the applications.]]> + +     + + + + + + + The protocol between clients and the ApplicationHistoryServer to + get the information of completed applications etc. +

    ]]> +     +     + + + + + + + + + + The interface used by a new ApplicationMaster to register with + the ResourceManager. +

    + +

    + The ApplicationMaster needs to provide details such as RPC + Port, HTTP tracking url etc. as specified in + {@link RegisterApplicationMasterRequest}. +

    + +

    + The ResourceManager responds with critical details such as + maximum resource capabilities in the cluster as specified in + {@link RegisterApplicationMasterResponse}. +

    + + @param request + registration request + @return registration respose + @throws YarnException + @throws IOException + @throws InvalidApplicationMasterRequestException + The exception is thrown when an ApplicationMaster tries to + register more then once. + @see RegisterApplicationMasterRequest + @see RegisterApplicationMasterResponse]]> +     +     + + + + + + The interface used by an ApplicationMaster to notify the + ResourceManager about its completion (success or failed).

    + +

    The ApplicationMaster has to provide details such as + final state, diagnostics (in case of failures) etc. as specified in + {@link FinishApplicationMasterRequest}.

    + +

    The ResourceManager responds with + {@link FinishApplicationMasterResponse}.

    + + @param request completion request + @return completion response + @throws YarnException + @throws IOException + @see FinishApplicationMasterRequest + @see FinishApplicationMasterResponse]]> +     +     + + + + + + + The main interface between an ApplicationMaster and the + ResourceManager. +

    + +

    + The ApplicationMaster uses this interface to provide a list of + {@link ResourceRequest} and returns unused {@link Container} allocated to + it via {@link AllocateRequest}. Optionally, the + ApplicationMaster can also blacklist resources which + it doesn't want to use. +

    + +

    + This also doubles up as a heartbeat to let the + ResourceManager know that the ApplicationMaster + is alive. Thus, applications should periodically make this call to be kept + alive. The frequency depends on + {@link YarnConfiguration#RM_AM_EXPIRY_INTERVAL_MS} which defaults to + {@link YarnConfiguration#DEFAULT_RM_AM_EXPIRY_INTERVAL_MS}. +

    + +

    + The ResourceManager responds with list of allocated + {@link Container}, status of completed containers and headroom information + for the application. +

    + +

    + The ApplicationMaster can use the available headroom + (resources) to decide how to utilized allocated resources and make informed + decisions about future resource requests. +

    + + @param request + allocation request + @return allocation response + @throws YarnException + @throws IOException + @throws InvalidApplicationMasterRequestException + This exception is thrown when an ApplicationMaster calls allocate + without registering first. + @throws InvalidResourceBlacklistRequestException + This exception is thrown when an application provides an invalid + specification for blacklist of resources. + @throws InvalidResourceRequestException + This exception is thrown when a {@link ResourceRequest} is out of + the range of the configured lower and upper limits on the + resources. + @see AllocateRequest + @see AllocateResponse]]> +     +     + + The protocol between a live instance of ApplicationMaster + and the ResourceManager.

    + +

    This is used by the ApplicationMaster to register/unregister + and to request and obtain resources in the cluster from the + ResourceManager.

    ]]> +     +     + + + + + + + + + + The interface used by clients to claim a resource with the + SharedCacheManager. The client uses a checksum to identify the + resource and an {@link ApplicationId} to identify which application will be + using the resource. +

    + +

    + The SharedCacheManager responds with whether or not the + resource exists in the cache. If the resource exists, a Path + to the resource in the shared cache is returned. If the resource does not + exist, the response is empty. +

    + + @param request request to claim a resource in the shared cache + @return response indicating if the resource is already in the cache + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The interface used by clients to release a resource with the + SharedCacheManager. This method is called once an application + is no longer using a claimed resource in the shared cache. The client uses + a checksum to identify the resource and an {@link ApplicationId} to + identify which application is releasing the resource. +

    + +

    + Note: This method is an optimization and the client is not required to call + it for correctness. +

    + +

    + Currently the SharedCacheManager sends an empty response. +

    + + @param request request to release a resource in the shared cache + @return (empty) response on releasing the resource + @throws YarnException + @throws IOException]]> +     +     + + + The protocol between clients and the SharedCacheManager to claim + and release resources in the shared cache. +

    ]]> +     +     + + + + + + + + + + + + + + + The ApplicationMaster provides a list of + {@link StartContainerRequest}s to a NodeManager to + start {@link Container}s allocated to it using this interface. +

    + +

    + The ApplicationMaster has to provide details such as allocated + resource capability, security tokens (if enabled), command to be executed + to start the container, environment for the process, necessary + binaries/jar/shared-objects etc. via the {@link ContainerLaunchContext} in + the {@link StartContainerRequest}. +

    + +

    + The NodeManager sends a response via + {@link StartContainersResponse} which includes a list of + {@link Container}s of successfully launched {@link Container}s, a + containerId-to-exception map for each failed {@link StartContainerRequest} in + which the exception indicates errors from per container and a + allServicesMetaData map between the names of auxiliary services and their + corresponding meta-data. Note: None-container-specific exceptions will + still be thrown by the API method itself. +

    +

    + The ApplicationMaster can use + {@link #getContainerStatuses(GetContainerStatusesRequest)} to get updated + statuses of the to-be-launched or launched containers. +

    + + @param request + request to start a list of containers + @return response including conatinerIds of all successfully launched + containers, a containerId-to-exception map for failed requests and + a allServicesMetaData map. + @throws YarnException + @throws IOException + @throws NMNotYetReadyException + This exception is thrown when NM starts from scratch but has not + yet connected with RM.]]> +     +     + + + + + + + The ApplicationMaster requests a NodeManager to + stop a list of {@link Container}s allocated to it using this + interface. +

    + +

    + The ApplicationMaster sends a {@link StopContainersRequest} + which includes the {@link ContainerId}s of the containers to be stopped. +

    + +

    + The NodeManager sends a response via + {@link StopContainersResponse} which includes a list of {@link ContainerId} + s of successfully stopped containers, a containerId-to-exception map for + each failed request in which the exception indicates errors from per + container. Note: None-container-specific exceptions will still be thrown by + the API method itself. ApplicationMaster can use + {@link #getContainerStatuses(GetContainerStatusesRequest)} to get updated + statuses of the containers. +

    + + @param request + request to stop a list of containers + @return response which includes a list of containerIds of successfully + stopped containers, a containerId-to-exception map for failed + requests. + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The API used by the ApplicationMaster to request for current + statuses of Containers from the NodeManager. +

    + +

    + The ApplicationMaster sends a + {@link GetContainerStatusesRequest} which includes the {@link ContainerId}s + of all containers whose statuses are needed. +

    + +

    + The NodeManager responds with + {@link GetContainerStatusesResponse} which includes a list of + {@link ContainerStatus} of the successfully queried containers and a + containerId-to-exception map for each failed request in which the exception + indicates errors from per container. Note: None-container-specific + exceptions will still be thrown by the API method itself. +

    + + @param request + request to get ContainerStatuses of containers with + the specified ContainerIds + @return response containing the list of ContainerStatus of the + successfully queried containers and a containerId-to-exception map + for failed requests. + + @throws YarnException + @throws IOException]]> +     +     + + The protocol between an ApplicationMaster and a + NodeManager to start/stop containers and to get status + of running containers.

    + +

    If security is enabled the NodeManager verifies that the + ApplicationMaster has truly been allocated the container + by the ResourceManager and also verifies all interactions such + as stopping the container or obtaining status information for the container. +

    ]]> +     +     + +     + + + + + + + + + + + + + + + + + + + + + + + response id used to track duplicate responses. + @return response id]]> + + + + + + response id used to track duplicate responses. + @param id response id]]> + + + + + current progress of application. + @return current progress of application]]> + + + + + + current progress of application + @param progress current progress of application]]> + + + + + ResourceRequest to update the + ResourceManager about the application's resource requirements. + @return the list of ResourceRequest + @see ResourceRequest]]> + + + + + + ResourceRequest to update the + ResourceManager about the application's resource requirements. + @param resourceRequests list of ResourceRequest to update the + ResourceManager about the application's + resource requirements + @see ResourceRequest]]> + + + + + ContainerId of containers being + released by the ApplicationMaster. + @return list of ContainerId of containers being + released by the ApplicationMaster]]> + + + + + + ContainerId of containers being + released by the ApplicationMaster + @param releaseContainers list of ContainerId of + containers being released by the + ApplicationMaster]]> + + + + + ResourceBlacklistRequest being sent by the + ApplicationMaster. + @return the ResourceBlacklistRequest being sent by the + ApplicationMaster + @see ResourceBlacklistRequest]]> + + + + + + ResourceBlacklistRequest to inform the + ResourceManager about the blacklist additions and removals + per the ApplicationMaster. + + @param resourceBlacklistRequest the ResourceBlacklistRequest + to inform the ResourceManager about + the blacklist additions and removals + per the ApplicationMaster + @see ResourceBlacklistRequest]]> + + + + + ContainerResourceIncreaseRequest being sent by the + ApplicationMaster]]> + + + + + + ContainerResourceIncreaseRequest to inform the + ResourceManager about some container's resources need to be + increased]]> + + + + The core request sent by the ApplicationMaster to the + ResourceManager to obtain resources in the cluster.

    + +

    The request includes: +

      +
    • A response id to track duplicate responses.
      • +
    • Progress information.
      • +
    • + A list of {@link ResourceRequest} to inform the + ResourceManager about the application's + resource requirements. +
      • +
    • + A list of unused {@link Container} which are being returned. +
      • +
    + + @see ApplicationMasterProtocol#allocate(AllocateRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ResourceManager needs the + ApplicationMaster to take some action then it will send an + AMCommand to the ApplicationMaster. See AMCommand + for details on commands and actions for them. + @return AMCommand if the ApplicationMaster should + take action, null otherwise + @see AMCommand]]> + + + + + last response id. + @return last response id]]> + + + + + newly allocated Container by the + ResourceManager. + @return list of newly allocated Container]]> + + + + + available headroom for resources in the cluster for the + application. + @return limit of available headroom for resources in the cluster for the + application]]> + + + + + completed containers' statuses. + @return the list of completed containers' statuses]]> + + + + + updated NodeReports. Updates could + be changes in health, availability etc of the nodes. + @return The delta of updated nodes since the last response]]> + + + + + + + + + + + The message is a snapshot of the resources the RM wants back from the AM. + While demand persists, the RM will repeat its request; applications should + not interpret each message as a request for additional + resources on top of previous messages. Resources requested consistently + over some duration may be forcibly killed by the RM. + + @return A specification of the resources to reclaim from this AM.]]> + + + + + + 1) AM is receiving first container on underlying NodeManager.
    + OR
    + 2) NMToken master key rolled over in ResourceManager and AM is getting new + container on the same underlying NodeManager. +

    + AM will receive one NMToken per NM irrespective of the number of containers + issued on same NM. AM is expected to store these tokens until issued a + new token for the same NM.]]> + + + + + ResourceManager]]> + + + + + NodeManager]]> + + + + + + + + + ResourceManager the + ApplicationMaster during resource negotiation. +

    + The response, includes: +

      +
    • Response ID to track duplicate responses.
      • +
    • + An AMCommand sent by ResourceManager to let the + {@code ApplicationMaster} take some actions (resync, shutdown etc.). +
      • +
    • A list of newly allocated {@link Container}.
      • +
    • A list of completed {@link Container}s' statuses.
      • +
    • + The available headroom for resources in the cluster for the + application. +
      • +
    • A list of nodes whose status has been updated.
      • +
    • The number of available nodes in a cluster.
      • +
    • A description of resources requested back by the cluster
      • +
    • AMRMToken, if AMRMToken has been rolled over
      • +
    + + @see ApplicationMasterProtocol#allocate(AllocateRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + final state of the ApplicationMaster. + @return final state of the ApplicationMaster]]> + + + + + + final state of the ApplicationMaster + @param finalState final state of the ApplicationMaster]]> + + + + + diagnostic information on application failure. + @return diagnostic information on application failure]]> + + + + + + diagnostic information on application failure. + @param diagnostics diagnostic information on application failure]]> + + + + + tracking URL for the ApplicationMaster. + This url if contains scheme then that will be used by resource manager + web application proxy otherwise it will default to http. + @return tracking URLfor the ApplicationMaster]]> + + + + + + final tracking URLfor the ApplicationMaster. + This is the web-URL to which ResourceManager or web-application proxy will + redirect client/users once the application is finished and the + ApplicationMaster is gone. +

    + If the passed url has a scheme then that will be used by the + ResourceManager and web-application proxy, otherwise the scheme will + default to http. +

    +

    + Empty, null, "N/A" strings are all valid besides a real URL. In case an url + isn't explicitly passed, it defaults to "N/A" on the ResourceManager. +

    + + @param url + tracking URLfor the ApplicationMaster]]> + + + + + The final request includes details such: +

      +
    • Final state of the {@code ApplicationMaster}
      • +
    • + Diagnostic information in case of failure of the + {@code ApplicationMaster} +
      • +
    • Tracking URL
      • +
    + + @see ApplicationMasterProtocol#finishApplicationMaster(FinishApplicationMasterRequest)]]> +     +     + + + + + + + + + + + + ResourceManager to a + ApplicationMaster on it's completion. +

    + The response, includes: +

      +
    • A flag which indicates that the application has successfully unregistered + with the RM and the application can safely stop.
      • +
    +

    + Note: The flag indicates whether the application has successfully + unregistered and is safe to stop. The application may stop after the flag is + true. If the application stops before the flag is true then the RM may retry + the application. + + @see ApplicationMasterProtocol#finishApplicationMaster(FinishApplicationMasterRequest)]]> + + + + + + + + + + + + + ApplicationAttemptId of an application attempt. + + @return ApplicationAttemptId of an application attempt]]> + + + + + + ApplicationAttemptId of an application attempt + + @param applicationAttemptId + ApplicationAttemptId of an application attempt]]> + + + + + The request sent by a client to the ResourceManager to get an + {@link ApplicationAttemptReport} for an application attempt. +

    + +

    + The request should include the {@link ApplicationAttemptId} of the + application attempt. +

    + + @see ApplicationAttemptReport + @see ApplicationHistoryProtocol#getApplicationAttemptReport(GetApplicationAttemptReportRequest)]]> +     +     + + + + + + + + + + + ApplicationAttemptReport for the application attempt. + + @return ApplicationAttemptReport for the application attempt]]> + + + + + + ApplicationAttemptReport for the application attempt. + + @param applicationAttemptReport + ApplicationAttemptReport for the application attempt]]> + + + + + The response sent by the ResourceManager to a client requesting + an application attempt report. +

    + +

    + The response includes an {@link ApplicationAttemptReport} which has the + details about the particular application attempt +

    + + @see ApplicationAttemptReport + @see ApplicationHistoryProtocol#getApplicationAttemptReport(GetApplicationAttemptReportRequest)]]> +     +     + + + + + + + + + + + ApplicationId of an application + + @return ApplicationId of an application]]> + + + + + + ApplicationId of an application + + @param applicationId + ApplicationId of an application]]> + + + + + The request from clients to get a list of application attempt reports of an + application from the ResourceManager. +

    + + @see ApplicationHistoryProtocol#getApplicationAttempts(GetApplicationAttemptsRequest)]]> +     +     + + + + + + + + + + + ApplicationReport of an application. + + @return a list of ApplicationReport of an application]]> + + + + + + ApplicationReport of an application. + + @param applicationAttempts + a list of ApplicationReport of an application]]> + + + + + The response sent by the ResourceManager to a client requesting + a list of {@link ApplicationAttemptReport} for application attempts. +

    + +

    + The ApplicationAttemptReport for each application includes the + details of an application attempt. +

    + + @see ApplicationAttemptReport + @see ApplicationHistoryProtocol#getApplicationAttempts(GetApplicationAttemptsRequest)]]> +     +     + + + + + + + + + + + ApplicationId of the application. + @return ApplicationId of the application]]> + + + + + + ApplicationId of the application + @param applicationId ApplicationId of the application]]> + + + + The request sent by a client to the ResourceManager to + get an {@link ApplicationReport} for an application.

    + +

    The request should include the {@link ApplicationId} of the + application.

    + + @see ApplicationClientProtocol#getApplicationReport(GetApplicationReportRequest) + @see ApplicationReport]]> +     +     + + + + + + + + ApplicationReport for the application. + @return ApplicationReport for the application]]> + + + + The response sent by the ResourceManager to a client + requesting an application report.

    + +

    The response includes an {@link ApplicationReport} which has details such + as user, queue, name, host on which the ApplicationMaster is + running, RPC port, tracking URL, diagnostics, start time etc.

    + + @see ApplicationClientProtocol#getApplicationReport(GetApplicationReportRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + The request from clients to get a report of Applications matching the + giving application types in the cluster from the + ResourceManager. +

    + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest) + +

    Setting any of the parameters to null, would just disable that + filter

    + + @param scope {@link ApplicationsRequestScope} to filter by + @param users list of users to filter by + @param queues list of scheduler queues to filter by + @param applicationTypes types of applications + @param applicationTags application tags to filter by + @param applicationStates application states to filter by + @param startRange range of application start times to filter by + @param finishRange range of application finish times to filter by + @param limit number of applications to limit to + @return {@link GetApplicationsRequest} to be used with + {@link ApplicationClientProtocol#getApplications(GetApplicationsRequest)}]]> +     +     + + + + + The request from clients to get a report of Applications matching the + giving application types in the cluster from the + ResourceManager. +

    + + @param scope {@link ApplicationsRequestScope} to filter by + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> +     +     + + + + + The request from clients to get a report of Applications matching the + giving application types in the cluster from the + ResourceManager. +

    + + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> +     +     + + + + + The request from clients to get a report of Applications matching the + giving application states in the cluster from the + ResourceManager. +

    + + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> +     +     + + + + + + The request from clients to get a report of Applications matching the + giving and application types and application types in the cluster from the + ResourceManager. +

    + + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> +     +     + + + + + + + + + + + + The request from clients to get a report of Applications + in the cluster from the ResourceManager.

    + + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> +     +     + + + + + + + + ApplicationReport for applications. + @return ApplicationReport for applications]]> + + + + The response sent by the ResourceManager to a client + requesting an {@link ApplicationReport} for applications.

    + +

    The ApplicationReport for each application includes details + such as user, queue, name, host on which the ApplicationMaster + is running, RPC port, tracking URL, diagnostics, start time etc.

    + + @see ApplicationReport + @see ApplicationClientProtocol#getApplications(GetApplicationsRequest)]]> +     +     + + + + + + + + + The request sent by clients to get cluster metrics from the + ResourceManager.

    + +

    Currently, this is empty.

    + + @see ApplicationClientProtocol#getClusterMetrics(GetClusterMetricsRequest)]]> +     +     + + + + + + + + YarnClusterMetrics for the cluster. + @return YarnClusterMetrics for the cluster]]> + + + + ResourceManager to a client + requesting cluster metrics. + + @see YarnClusterMetrics + @see ApplicationClientProtocol#getClusterMetrics(GetClusterMetricsRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The request from clients to get a report of all nodes + in the cluster from the ResourceManager.

    + + The request will ask for all nodes in the given {@link NodeState}s. + + @see ApplicationClientProtocol#getClusterNodes(GetClusterNodesRequest)]]> +     +     + + + + + + + + NodeReport for all nodes in the cluster. + @return NodeReport for all nodes in the cluster]]> + + + + The response sent by the ResourceManager to a client + requesting a {@link NodeReport} for all nodes.

    + +

    The NodeReport contains per-node information such as + available resources, number of containers, tracking url, rack name, health + status etc. + + @see NodeReport + @see ApplicationClientProtocol#getClusterNodes(GetClusterNodesRequest)]]> + + + + + + + + + + + + + ContainerId of the Container. + + @return ContainerId of the Container]]> + + + + + + ContainerId of the container + + @param containerId + ContainerId of the container]]> + + + + + The request sent by a client to the ResourceManager to get an + {@link ContainerReport} for a container. +

    ]]> +     +     + + + + + + + + + + + ContainerReport for the container. + + @return ContainerReport for the container]]> + + + + + + + + The response sent by the ResourceManager to a client requesting + a container report. +

    + +

    + The response includes a {@link ContainerReport} which has details of a + container. +

    ]]> +     +     + + + + + + + + + + + ApplicationAttemptId of an application attempt. + + @return ApplicationAttemptId of an application attempt]]> + + + + + + ApplicationAttemptId of an application attempt + + @param applicationAttemptId + ApplicationAttemptId of an application attempt]]> + + + + + The request from clients to get a list of container reports, which belong to + an application attempt from the ResourceManager. +

    + + @see ApplicationHistoryProtocol#getContainers(GetContainersRequest)]]> +     +     + + + + + + + + + + + ContainerReport for all the containers of an + application attempt. + + @return a list of ContainerReport for all the containers of an + application attempt]]> + + + + + + ContainerReport for all the containers of an + application attempt. + + @param containers + a list of ContainerReport for all the containers of + an application attempt]]> + + + + + The response sent by the ResourceManager to a client requesting + a list of {@link ContainerReport} for containers. +

    + +

    + The ContainerReport for each container includes the container + details. +

    + + @see ContainerReport + @see ApplicationHistoryProtocol#getContainers(GetContainersRequest)]]> +     +     + + + + + + + + + + + ContainerIds of containers for which to obtain + the ContainerStatus. + + @return the list of ContainerIds of containers for which to + obtain the ContainerStatus.]]> + + + + + + ContainerIds of containers for which to obtain + the ContainerStatus + + @param containerIds + a list of ContainerIds of containers for which to + obtain the ContainerStatus]]> + + + + ApplicationMaster to the + NodeManager to get {@link ContainerStatus} of requested + containers. + + @see ContainerManagementProtocol#getContainerStatuses(GetContainerStatusesRequest)]]> + + + + + + + + + + ContainerStatuses of the requested containers. + + @return ContainerStatuses of the requested containers.]]> + + + + + + + + + NodeManager to the + ApplicationMaster when asked to obtain the + ContainerStatus of requested containers. + + @see ContainerManagementProtocol#getContainerStatuses(GetContainerStatusesRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The request sent by clients to get a new {@link ApplicationId} for + submitting an application.

    + +

    Currently, this is empty.

    + + @see ApplicationClientProtocol#getNewApplication(GetNewApplicationRequest)]]> +     +     + + + + + + + + new ApplicationId allocated by the + ResourceManager. + @return new ApplicationId allocated by the + ResourceManager]]> + + + + + ResourceManager in the cluster. + @return maximum capability of allocated resources in the cluster]]> + + + + The response sent by the ResourceManager to the client for + a request to get a new {@link ApplicationId} for submitting applications.

    + +

    Clients can submit an application with the returned + {@link ApplicationId}.

    + + @see ApplicationClientProtocol#getNewApplication(GetNewApplicationRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + queue name for which to get queue information. + @return queue name for which to get queue information]]> + + + + + + queue name for which to get queue information + @param queueName queue name for which to get queue information]]> + + + + + active applications required? + @return true if applications' information is to be included, + else false]]> + + + + + + active applications? + @param includeApplications fetch information about active + applications?]]> + + + + + child queues required? + @return true if information about child queues is required, + else false]]> + + + + + + child queues? + @param includeChildQueues fetch information about child queues?]]> + + + + + child queue hierarchy required? + @return true if information about entire hierarchy is + required, false otherwise]]> + + + + + + child queue hierarchy? + @param recursive fetch information on the entire child queue + hierarchy?]]> + + + + The request sent by clients to get queue information + from the ResourceManager.

    + + @see ApplicationClientProtocol#getQueueInfo(GetQueueInfoRequest)]]> +     +     + + + + + + + + QueueInfo for the specified queue. + @return QueueInfo for the specified queue]]> + + + + + The response includes a {@link QueueInfo} which has details such as + queue name, used/total capacities, running applications, child queues etc. + + @see QueueInfo + @see ApplicationClientProtocol#getQueueInfo(GetQueueInfoRequest)]]> + + + + + + + + + + + The request sent by clients to the ResourceManager to + get queue acls for the current user.

    + +

    Currently, this is empty.

    + + @see ApplicationClientProtocol#getQueueUserAcls(GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + + + QueueUserACLInfo per queue for the user. + @return QueueUserACLInfo per queue for the user]]> + + + + The response sent by the ResourceManager to clients + seeking queue acls for the user.

    + +

    The response contains a list of {@link QueueUserACLInfo} which + provides information about {@link QueueACL} per queue.

    + + @see QueueACL + @see QueueUserACLInfo + @see ApplicationClientProtocol#getQueueUserAcls(GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + + + + + + ApplicationId of the application to be aborted. + @return ApplicationId of the application to be aborted]]> + + + + + + + The request sent by the client to the ResourceManager + to abort a submitted application.

    + +

    The request includes the {@link ApplicationId} of the application to be + aborted.

    + + @see ApplicationClientProtocol#forceKillApplication(KillApplicationRequest)]]> +     +     + + + + + + + + + + + + ResourceManager to the client aborting + a submitted application. +

    + The response, includes: +

      +
    • + A flag which indicates that the process of killing the application is + completed or not. +
      • +
    + Note: user is recommended to wait until this flag becomes true, otherwise if + the ResourceManager crashes before the process of killing the + application is completed, the ResourceManager may retry this + application on recovery. + + @see ApplicationClientProtocol#forceKillApplication(KillApplicationRequest)]]> +     +     + + + + + + + + + + + + ApplicationId of the application to be moved. + @return ApplicationId of the application to be moved]]> + + + + + + ApplicationId of the application to be moved. + @param appId ApplicationId of the application to be moved]]> + + + + + + + + + + + + + + + The request sent by the client to the ResourceManager + to move a submitted application to a different queue.

    + +

    The request includes the {@link ApplicationId} of the application to be + moved and the queue to place it in.

    + + @see ApplicationClientProtocol#moveApplicationAcrossQueues(MoveApplicationAcrossQueuesRequest)]]> +     +     + + + + + + + + The response sent by the ResourceManager to the client moving + a submitted application to a different queue. +

    +

    + A response without exception means that the move has completed successfully. +

    + + @see ApplicationClientProtocol#moveApplicationAcrossQueues(MoveApplicationAcrossQueuesRequest)]]> +     +     + + + + + + + + + + + RegisterApplicationMasterRequest. + If port, trackingUrl is not used, use the following default value: +
      +
    • port: -1
      • +
    • trackingUrl: null
      • +
    + The port is allowed to be any integer larger than or equal to -1. + @return the new instance of RegisterApplicationMasterRequest]]> +     +     + + + host on which the ApplicationMaster is + running. + @return host on which the ApplicationMaster is running]]> + + + + + + host on which the ApplicationMaster is + running. + @param host host on which the ApplicationMaster + is running]]> + + + + + RPC port on which the {@code ApplicationMaster} is + responding. + @return the RPC port on which the {@code ApplicationMaster} + is responding]]> + + + + + + RPC port on which the {@code ApplicationMaster} is + responding. + @param port RPC port on which the {@code ApplicationMaster} + is responding]]> + + + + + tracking URL for the ApplicationMaster. + This url if contains scheme then that will be used by resource manager + web application proxy otherwise it will default to http. + @return tracking URL for the ApplicationMaster]]> + + + + + + tracking URLfor the ApplicationMaster while + it is running. This is the web-URL to which ResourceManager or + web-application proxy will redirect client/users while the application and + the ApplicationMaster are still running. +

    + If the passed url has a scheme then that will be used by the + ResourceManager and web-application proxy, otherwise the scheme will + default to http. +

    +

    + Empty, null, "N/A" strings are all valid besides a real URL. In case an url + isn't explicitly passed, it defaults to "N/A" on the ResourceManager. +

    + + @param trackingUrl + tracking URLfor the ApplicationMaster]]> + + + + + The registration includes details such as: +

      +
    • Hostname on which the AM is running.
      • +
    • RPC Port
      • +
    • Tracking URL
      • +
    + + @see ApplicationMasterProtocol#registerApplicationMaster(RegisterApplicationMasterRequest)]]> +     +     + + + + + + + + ResourceManager in the cluster. + @return maximum capability of allocated resources in the cluster]]> + + + + + ApplicationACLs for the application. + @return all the ApplicationACLs]]> + + + + + Get ClientToAMToken master key.

    +

    The ClientToAMToken master key is sent to ApplicationMaster + by ResourceManager via {@link RegisterApplicationMasterResponse} + , used to verify corresponding ClientToAMToken.

    ]]> +     +     + + + + + + + + + Get the queue that the application was placed in.

    ]]> + + + + + + Set the queue that the application was placed in.

    ]]> + + + + + + Get the list of running containers as viewed by + ResourceManager from previous application attempts. +

    + + @return the list of running containers as viewed by + ResourceManager from previous application attempts + @see RegisterApplicationMasterResponse#getNMTokensFromPreviousAttempts()]]> +     +     + + + + + + + + + + + + + The response contains critical details such as: +
      +
    • Maximum capability for allocated resources in the cluster.
      • +
    • {@code ApplicationACL}s for the application.
      • +
    • ClientToAMToken master key.
      • +
    + + @see ApplicationMasterProtocol#registerApplicationMaster(RegisterApplicationMasterRequest)]]> +     +     + + + + + + + + ApplicationId of the resource to be released. + + @return ApplicationId]]> + + + + + + ApplicationId of the resource to be released. + + @param id ApplicationId]]> + + + + + key of the resource to be released. + + @return key]]> + + + + + + key of the resource to be released. + + @param key unique identifier for the resource]]> + + + + The request from clients to release a resource in the shared cache.

    ]]> +     +     + + + + + + + + The response to clients from the SharedCacheManager when + releasing a resource in the shared cache. +

    + +

    + Currently, this is empty. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ContainerLaunchContext for the container to be started + by the NodeManager. + + @return ContainerLaunchContext for the container to be started + by the NodeManager]]> + + + + + + ContainerLaunchContext for the container to be started + by the NodeManager + @param context ContainerLaunchContext for the container to be + started by the NodeManager]]> + + + + + + Note: {@link NMToken} will be used for authenticating communication with + {@code NodeManager}. + @return the container token to be used for authorization during starting + container. + @see NMToken + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + The request sent by the ApplicationMaster to the + NodeManager to start a container.

    + +

    The ApplicationMaster has to provide details such as + allocated resource capability, security tokens (if enabled), command + to be executed to start the container, environment for the process, + necessary binaries/jar/shared-objects etc. via the + {@link ContainerLaunchContext}.

    + + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + The request which contains a list of {@link StartContainerRequest} sent by + the ApplicationMaster to the NodeManager to + start containers. +

    + +

    + In each {@link StartContainerRequest}, the ApplicationMaster has + to provide details such as allocated resource capability, security tokens (if + enabled), command to be executed to start the container, environment for the + process, necessary binaries/jar/shared-objects etc. via the + {@link ContainerLaunchContext}. +

    + + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> +     +     + + + + + + + + ContainerId s of the containers that are + started successfully. + + @return the list of ContainerId s of the containers that are + started successfully. + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> + + + + + + + + + + + Get the meta-data from all auxiliary services running on the + NodeManager. +

    +

    + The meta-data is returned as a Map between the auxiliary service names and + their corresponding per service meta-data as an opaque blob + ByteBuffer +

    + +

    + To be able to interpret the per-service meta-data, you should consult the + documentation for the Auxiliary-service configured on the NodeManager +

    + + @return a Map between the names of auxiliary services and their + corresponding meta-data]]> +     +     + + + The response sent by the NodeManager to the + ApplicationMaster when asked to start an allocated + container. +

    + + @see ContainerManagementProtocol#startContainers(StartContainersRequest)]]> +     +     + + + + + + + + + + + ContainerIds of the containers to be stopped. + @return ContainerIds of containers to be stopped]]> + + + + + + ContainerIds of the containers to be stopped. + @param containerIds ContainerIds of the containers to be stopped]]> + + + + The request sent by the ApplicationMaster to the + NodeManager to stop containers.

    + + @see ContainerManagementProtocol#stopContainers(StopContainersRequest)]]> +     +     + + + + + + + + + + + + + + + + + + The response sent by the NodeManager to the + ApplicationMaster when asked to stop allocated + containers. +

    + + @see ContainerManagementProtocol#stopContainers(StopContainersRequest)]]> +     +     + + + + + + + + + + + ApplicationSubmissionContext for the application. + @return ApplicationSubmissionContext for the application]]> + + + + + + ApplicationSubmissionContext for the application. + @param context ApplicationSubmissionContext for the + application]]> + + + + The request sent by a client to submit an application to the + ResourceManager.

    + +

    The request, via {@link ApplicationSubmissionContext}, contains + details such as queue, {@link Resource} required to run the + ApplicationMaster, the equivalent of + {@link ContainerLaunchContext} for launching the + ApplicationMaster etc. + + @see ApplicationClientProtocol#submitApplication(SubmitApplicationRequest)]]> + + + + + + + + + The response sent by the ResourceManager to a client on + application submission.

    + +

    Currently, this is empty.

    + + @see ApplicationClientProtocol#submitApplication(SubmitApplicationRequest)]]> +     +     + + + + + + + + ApplicationId of the resource to be used. + + @return ApplicationId]]> + + + + + + ApplicationId of the resource to be used. + + @param id ApplicationId]]> + + + + + key of the resource to be used. + + @return key]]> + + + + + + key of the resource to be used. + + @param key unique identifier for the resource]]> + + + + + The request from clients to the SharedCacheManager that claims a + resource in the shared cache. +

    ]]> +     +     + + + + + + + + Path corresponding to the requested resource in the + shared cache. + + @return String A Path if the resource exists in the shared + cache, null otherwise]]> + + + + + + Path corresponding to a resource in the shared cache. + + @param p A Path corresponding to a resource in the shared + cache]]> + + + + + The response from the SharedCacheManager to the client that indicates whether + a requested resource exists in the cache. +

    ]]> +     +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ApplicationId of the ApplicationAttempId. + @return ApplicationId of the ApplicationAttempId]]> + + + + + attempt id of the Application. + @return attempt id of the Application]]> + + + + + + + + + + + + + + + + + + ApplicationAttemptId denotes the particular attempt + of an ApplicationMaster for a given {@link ApplicationId}.

    + +

    Multiple attempts might be needed to run an application to completion due + to temporal failures of the ApplicationMaster such as hardware + failures, connectivity issues etc. on the node on which it was scheduled.

    ]]> +     +     + + + + + + + + YarnApplicationAttemptState of the application attempt. + + @return YarnApplicationAttemptState of the application attempt]]> + + + + + RPC port of this attempt ApplicationMaster. + + @return RPC port of this attempt ApplicationMaster]]> + + + + + host on which this attempt of + ApplicationMaster is running. + + @return host on which this attempt of + ApplicationMaster is running]]> + + + + + diagnositic information of the application attempt in case + of errors. + + @return diagnositic information of the application attempt in case + of errors]]> + + + + + tracking url for the application attempt. + + @return tracking url for the application attempt]]> + + + + + original tracking url for the application attempt. + + @return original tracking url for the application attempt]]> + + + + + ApplicationAttemptId of this attempt of the + application + + @return ApplicationAttemptId of the attempt]]> + + + + + ContainerId of AMContainer for this attempt + + @return ContainerId of the attempt]]> + + + + + It includes details such as: +
      +
    • {@link ApplicationAttemptId} of the application.
      • +
    • Host on which the ApplicationMaster of this attempt is + running.
      • +
    • RPC port of the ApplicationMaster of this attempt.
      • +
    • Tracking URL.
      • +
    • Diagnostic information in case of errors.
      • +
    • {@link YarnApplicationAttemptState} of the application attempt.
      • +
    • {@link ContainerId} of the master Container.
      • +
    ]]> +     +     + + + + + + + + + ApplicationId + which is unique for all applications started by a particular instance + of the ResourceManager. + @return short integer identifier of the ApplicationId]]> + + + + + start time of the ResourceManager which is + used to generate globally unique ApplicationId. + @return start time of the ResourceManager]]> + + + + + + + + + + + + + + + + + + ApplicationId represents the globally unique + identifier for an application.

    + +

    The globally unique nature of the identifier is achieved by using the + cluster timestamp i.e. start-time of the + ResourceManager along with a monotonically increasing counter + for the application.

    ]]> +     +     + + + + + + + + ApplicationId of the application. + @return ApplicationId of the application]]> + + + + + ApplicationAttemptId of the current + attempt of the application + @return ApplicationAttemptId of the attempt]]> + + + + + user who submitted the application. + @return user who submitted the application]]> + + + + + queue to which the application was submitted. + @return queue to which the application was submitted]]> + + + + + name of the application. + @return name of the application]]> + + + + + host on which the ApplicationMaster + is running. + @return host on which the ApplicationMaster + is running]]> + + + + + RPC port of the ApplicationMaster. + @return RPC port of the ApplicationMaster]]> + + + + + client token for communicating with the + ApplicationMaster. +

    + ClientToAMToken is the security token used by the AMs to verify + authenticity of any client. +

    + +

    + The ResourceManager, provides a secure token (via + {@link ApplicationReport#getClientToAMToken()}) which is verified by the + ApplicationMaster when the client directly talks to an AM. +

    + @return client token for communicating with the + ApplicationMaster]]> +     +     + + + YarnApplicationState of the application. + @return YarnApplicationState of the application]]> + + + + + diagnositic information of the application in case of + errors. + @return diagnositic information of the application in case + of errors]]> + + + + + tracking url for the application. + @return tracking url for the application]]> + + + + + start time of the application. + @return start time of the application]]> + + + + + finish time of the application. + @return finish time of the application]]> + + + + + final finish status of the application. + @return final finish status of the application]]> + + + + + + + + + + + + + + + + + + + + + + + + + + The AMRM token is required for AM to RM scheduling operations. For + managed Application Masters Yarn takes care of injecting it. For unmanaged + Applications Masters, the token must be obtained via this method and set + in the {@link org.apache.hadoop.security.UserGroupInformation} of the + current user. +

    + The AMRM token will be returned only if all the following conditions are + met: +

      +
    • the requester is the owner of the ApplicationMaster
      • +
    • the application master is an unmanaged ApplicationMaster
      • +
    • the application master is in ACCEPTED state
      • +
    + Else this method returns NULL. + + @return the AM to RM token if available.]]> +     +     + + + It includes details such as: +
      +
    • {@link ApplicationId} of the application.
      • +
    • Applications user.
      • +
    • Application queue.
      • +
    • Application name.
      • +
    • Host on which the ApplicationMaster is running.
      • +
    • RPC port of the ApplicationMaster.
      • +
    • Tracking URL.
      • +
    • {@link YarnApplicationState} of the application.
      • +
    • Diagnostic information in case of errors.
      • +
    • Start time of the application.
      • +
    • Client {@link Token} of the application (if security is enabled).
      • +
    + + @see ApplicationClientProtocol#getApplicationReport(org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest)]]> +     +     + + + + + + + + + + + + + Resource. -1 for invalid/inaccessible reports. + @return the used Resource]]> + + + + + Resource. -1 for invalid/inaccessible reports. + @return the reserved Resource]]> + + + + + Resource. -1 for invalid/inaccessible reports. + @return the needed Resource]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ApplicationId of the submitted application. + @return ApplicationId of the submitted application]]> + + + + + + ApplicationId of the submitted application. + @param applicationId ApplicationId of the submitted + application]]> + + + + + name. + @return application name]]> + + + + + + name. + @param applicationName application name]]> + + + + + queue to which the application is being submitted. + @return queue to which the application is being submitted]]> + + + + + + queue to which the application is being submitted + @param queue queue to which the application is being submitted]]> + + + + + Priority of the application. + @return Priority of the application]]> + + + + + ContainerLaunchContext to describe the + Container with which the ApplicationMaster is + launched. + @return ContainerLaunchContext for the + ApplicationMaster container]]> + + + + + + ContainerLaunchContext to describe the + Container with which the ApplicationMaster is + launched. + @param amContainer ContainerLaunchContext for the + ApplicationMaster container]]> + + + + + YarnApplicationState. + Such apps will not be retried by the RM on app attempt failure. + The default value is false. + @return true if the AM is not managed by the RM]]> + + + + + + + + + + + + + + + + + + + + + + ApplicationMaster for this + application. Please note this will be DEPRECATED, use getResource + in getAMContainerResourceRequest instead. + + @return the resource required by the ApplicationMaster for + this application.]]> + + + + + + ApplicationMaster for this + application. + + @param resource the resource required by the ApplicationMaster + for this application.]]> + + + + + + + + + + + + + + + + + + + + + + + If the flag is true, running containers will not be killed when application + attempt fails and these containers will be retrieved by the new application + attempt on registration via + {@link ApplicationMasterProtocol#registerApplicationMaster(RegisterApplicationMasterRequest)}. +

    + + @param keepContainers + the flag which indicates whether to keep containers across + application attempts.]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + getResource and getPriority of + ApplicationSubmissionContext. + + Number of containers and Priority will be ignore. + + @return ResourceRequest of AM container]]> + + + + + + + + + + + + + + + + + + + + + + LogAggregationContext of the application + + @return LogAggregationContext of the application]]> + + + + + + LogAggregationContext for the application + + @param logAggregationContext + for the application]]> + + + + + + + + + + + + + + + + It includes details such as: +
      +
    • {@link ApplicationId} of the application.
      • +
    • Application user.
      • +
    • Application name.
      • +
    • {@link Priority} of the application.
      • +
    • + {@link ContainerLaunchContext} of the container in which the + ApplicationMaster is executed. +
      • +
    • + maxAppAttempts. The maximum number of application attempts. + It should be no larger than the global number of max attempts in the + Yarn configuration. +
      • +
    • + attemptFailuresValidityInterval. The default value is -1. + when attemptFailuresValidityInterval in milliseconds is set to + {@literal >} 0, the failure number will no take failures which happen + out of the validityInterval into failure count. If failure count + reaches to maxAppAttempts, the application will be failed. +
      • +
    • Optional, application-specific {@link LogAggregationContext}
      • +
    + + @see ContainerLaunchContext + @see ApplicationClientProtocol#submitApplication(org.apache.hadoop.yarn.api.protocolrecords.SubmitApplicationRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + Resource allocated to the container. + @return Resource allocated to the container]]> + + + + + Priority at which the Container was + allocated. + @return Priority at which the Container was + allocated]]> + + + + + ContainerToken for the container. +

    ContainerToken is the security token used by the framework + to verify authenticity of any Container.

    + +

    The ResourceManager, on container allocation provides a + secure token which is verified by the NodeManager on + container launch.

    + +

    Applications do not need to care about ContainerToken, they + are transparently handled by the framework - the allocated + Container includes the ContainerToken.

    + + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest) + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest) + + @return ContainerToken for the container]]> +     +     + + + The {@code ResourceManager} is the sole authority to allocate any + {@code Container} to applications. The allocated {@code Container} + is always on a single node and has a unique {@link ContainerId}. It has + a specific amount of {@link Resource} allocated. +

    + It includes details such as: +

      +
    • {@link ContainerId} for the container, which is globally unique.
      • +
    • + {@link NodeId} of the node on which it is allocated. +
      • +
    • HTTP uri of the node.
      • +
    • {@link Resource} allocated to the container.
      • +
    • {@link Priority} at which the container was allocated.
      • +
    • + Container {@link Token} of the container, used to securely verify + authenticity of the allocation. +
      • +
    + + Typically, an {@code ApplicationMaster} receives the {@code Container} + from the {@code ResourceManager} during resource-negotiation and then + talks to the {@code NodeManager} to start/stop containers. + + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest) + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest) + @see ContainerManagementProtocol#stopContainers(org.apache.hadoop.yarn.api.protocolrecords.StopContainersRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ApplicationAttemptId of the application to which the + Container was assigned. +

    + Note: If containers are kept alive across application attempts via + {@link ApplicationSubmissionContext#setKeepContainersAcrossApplicationAttempts(boolean)} + the ContainerId does not necessarily contain the current + running application attempt's ApplicationAttemptId This + container can be allocated by previously exited application attempt and + managed by the current running attempt thus have the previous application + attempt's ApplicationAttemptId. +

    + + @return ApplicationAttemptId of the application to which the + Container was assigned]]> +     +     + + + ContainerId, + which doesn't include epoch. Note that this method will be marked as + deprecated, so please use getContainerId instead. + @return lower 32 bits of identifier of the ContainerId]]> + + + + + ContainerId. Upper 24 bits are + reserved as epoch of cluster, and lower 40 bits are reserved as + sequential number of containers. + @return identifier of the ContainerId]]> + + + + + + + + + + + + + + + + + + + + + + + + ContainerId represents a globally unique identifier + for a {@link Container} in the cluster.

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + LocalResource required by the container. + @return all LocalResource required by the container]]> + + + + + + LocalResource required by the container. All pre-existing + Map entries are cleared before adding the new Map + @param localResources LocalResource required by the container]]> + + + + + + Get application-specific binary service data. This is a map keyed + by the name of each {@link AuxiliaryService} that is configured on a + NodeManager and value correspond to the application specific data targeted + for the keyed {@link AuxiliaryService}. +

    + +

    + This will be used to initialize this application on the specific + {@link AuxiliaryService} running on the NodeManager by calling + {@link AuxiliaryService#initializeApplication(ApplicationInitializationContext)} +

    + + @return application-specific binary service data]]> +     +     + + + + + Set application-specific binary service data. This is a map keyed + by the name of each {@link AuxiliaryService} that is configured on a + NodeManager and value correspond to the application specific data targeted + for the keyed {@link AuxiliaryService}. All pre-existing Map entries are + preserved. +

    + + @param serviceData + application-specific binary service data]]> +     +     + + + environment variables for the container. + @return environment variables for the container]]> + + + + + + environment variables for the container. All pre-existing Map + entries are cleared before adding the new Map + @param environment environment variables for the container]]> + + + + + commands for launching the container. + @return the list of commands for launching the container]]> + + + + + + commands for launching the container. All + pre-existing List entries are cleared before adding the new List + @param commands the list of commands for launching the container]]> + + + + + ApplicationACLs for the application. + @return all the ApplicationACLs]]> + + + + + + ApplicationACLs for the application. All pre-existing + Map entries are cleared before adding the new Map + @param acls ApplicationACLs for the application]]> + + + + + It includes details such as: +
      +
    • {@link ContainerId} of the container.
      • +
    • {@link Resource} allocated to the container.
      • +
    • User to whom the container is allocated.
      • +
    • Security tokens (if security is enabled).
      • +
    • + {@link LocalResource} necessary for running the container such + as binaries, jar, shared-objects, side-files etc. +
      • +
    • Optional, application-specific binary service data.
      • +
    • Environment variables for the launched process.
      • +
    • Command to launch the container.
      • +
    + + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + ContainerId of the container. + + @return ContainerId of the container.]]> + + + + + + + + Resource of the container. + + @return allocated Resource of the container.]]> + + + + + + + + NodeId where container is running. + + @return allocated NodeId where container is running.]]> + + + + + + + + Priority of the container. + + @return allocated Priority of the container.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ContainerState of the container. + + @return final ContainerState of the container.]]> + + + + + + + + exit status of the container. + + @return final exit status of the container.]]> + + + + + + + + + + + + + It includes details such as: +
      +
    • {@link ContainerId} of the container.
      • +
    • Allocated Resources to the container.
      • +
    • Assigned Node id.
      • +
    • Assigned Priority.
      • +
    • Creation Time.
      • +
    • Finish Time.
      • +
    • Container Exit Status.
      • +
    • {@link ContainerState} of the container.
      • +
    • Diagnostic information in case of errors.
      • +
    • Log URL.
      • +
    • nodeHttpAddress
      • +
    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + State of a Container.

    ]]> +     +     + + + + + + + + ContainerId of the container. + @return ContainerId of the container]]> + + + + + ContainerState of the container. + @return ContainerState of the container]]> + + + + + Get the exit status for the container.

    + +

    Note: This is valid only for completed containers i.e. containers + with state {@link ContainerState#COMPLETE}. + Otherwise, it returns an ContainerExitStatus.INVALID. +

    + +

    Containers killed by the framework, either due to being released by + the application or being 'lost' due to node failures etc. have a special + exit code of ContainerExitStatus.ABORTED.

    + +

    When threshold number of the nodemanager-local-directories or + threshold number of the nodemanager-log-directories become bad, then + container is not launched and is exited with ContainersExitStatus.DISKS_FAILED. +

    + + @return exit status for the container]]> +     +     + + + diagnostic messages for failed containers. + @return diagnostic messages for failed containers]]> + + + + + It provides details such as: +
      +
    • {@code ContainerId} of the container.
      • +
    • {@code ContainerState} of the container.
      • +
    • Exit status of a completed container.
      • +
    • Diagnostic message for a failed container.
      • +
    ]]> +     +     + + + + + + + + + + Application.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + location of the resource to be localized. + @return location of the resource to be localized]]> + + + + + + location of the resource to be localized. + @param resource location of the resource to be localized]]> + + + + + size of the resource to be localized. + @return size of the resource to be localized]]> + + + + + + size of the resource to be localized. + @param size size of the resource to be localized]]> + + + + + timestamp of the resource to be localized, used + for verification. + @return timestamp of the resource to be localized]]> + + + + + + timestamp of the resource to be localized, used + for verification. + @param timestamp timestamp of the resource to be localized]]> + + + + + LocalResourceType of the resource to be localized. + @return LocalResourceType of the resource to be localized]]> + + + + + + LocalResourceType of the resource to be localized. + @param type LocalResourceType of the resource to be localized]]> + + + + + LocalResourceVisibility of the resource to be + localized. + @return LocalResourceVisibility of the resource to be + localized]]> + + + + + + LocalResourceVisibility of the resource to be + localized. + @param visibility LocalResourceVisibility of the resource to be + localized]]> + + + + + pattern that should be used to extract entries from the + archive (only used when type is PATTERN). + @return pattern that should be used to extract entries from the + archive.]]> + + + + + + pattern that should be used to extract entries from the + archive (only used when type is PATTERN). + @param pattern pattern that should be used to extract entries + from the archive.]]> + + + + + + + + + + + shouldBeUploadedToSharedCache + of this request]]> + + + + LocalResource represents a local resource required to + run a container.

    + +

    The NodeManager is responsible for localizing the resource + prior to launching the container.

    + +

    Applications can specify {@link LocalResourceType} and + {@link LocalResourceVisibility}.

    + + @see LocalResourceType + @see LocalResourceVisibility + @see ContainerLaunchContext + @see ApplicationSubmissionContext + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + + + type + of a resource localized by the {@code NodeManager}. +

    + The type can be one of: +

      +
    • + {@link #FILE} - Regular file i.e. uninterpreted bytes. +
      • +
    • + {@link #ARCHIVE} - Archive, which is automatically unarchived by the + NodeManager. +
      • +
    • + {@link #PATTERN} - A hybrid between {@link #ARCHIVE} and {@link #FILE}. +
      • +
    + + @see LocalResource + @see ContainerLaunchContext + @see ApplicationSubmissionContext + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + + + visibility + of a resource localized by the {@code NodeManager}. +

    + The visibility can be one of: +

      +
    • {@link #PUBLIC} - Shared by all users on the node.
      • +
    • + {@link #PRIVATE} - Shared among all applications of the + same user on the node. +
      • +
    • + {@link #APPLICATION} - Shared only among containers of the + same application on the node. +
      • +
    + + @see LocalResource + @see ContainerLaunchContext + @see ApplicationSubmissionContext + @see ContainerManagementProtocol#startContainers(org.apache.hadoop.yarn.api.protocolrecords.StartContainersRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + It includes details such as: +
      +
    • + includePattern. It uses Java Regex to filter the log files + which match the defined include pattern and those log files + will be uploaded when the application finishes. +
      • +
    • + excludePattern. It uses Java Regex to filter the log files + which match the defined exclude pattern and those log files + will not be uploaded when application finishes. If the log file + name matches both the include and the exclude pattern, this file + will be excluded eventually. +
      • +
    • + rolledLogsIncludePattern. It uses Java Regex to filter the log files + which match the defined include pattern and those log files + will be aggregated in a rolling fashion. +
      • +
    • + rolledLogsExcludePattern. It uses Java Regex to filter the log files + which match the defined exclude pattern and those log files + will not be aggregated in a rolling fashion. If the log file + name matches both the include and the exclude pattern, this file + will be excluded eventually. +
      • +
    + + @see ApplicationSubmissionContext]]> +     +     + + + + + + + + NodeManager for which the NMToken + is used to authenticate. + @return the {@link NodeId} of the NodeManager for which the + NMToken is used to authenticate.]]> + + + + + + + + NodeManager + @return the {@link Token} used for authenticating with NodeManager]]> + + + + + + + + + + + + The NMToken is used for authenticating communication with + NodeManager

    +

    It is issued by ResourceMananger when ApplicationMaster + negotiates resource with ResourceManager and + validated on NodeManager side.

    + @see AllocateResponse#getNMTokens()]]> +     +     + + + + + + + + + hostname of the node. + @return hostname of the node]]> + + + + + port for communicating with the node. + @return port for communicating with the node]]> + + + + + + + + + + + + + + + + NodeId is the unique identifier for a node.

    + +

    It includes the hostname and port to uniquely + identify the node. Thus, it is unique across restarts of any + NodeManager.

    ]]> +     +     + + + + + + + + NodeId of the node. + @return NodeId of the node]]> + + + + + NodeState of the node. + @return NodeState of the node]]> + + + + + http address of the node. + @return http address of the node]]> + + + + + rack name for the node. + @return rack name for the node]]> + + + + + used Resource on the node. + @return used Resource on the node]]> + + + + + total Resource on the node. + @return total Resource on the node]]> + + + + + diagnostic health report of the node. + @return diagnostic health report of the node]]> + + + + + last timestamp at which the health report was received. + @return last timestamp at which the health report was received]]> + + + + + + + + + + It includes details such as: +
      +
    • {@link NodeId} of the node.
      • +
    • HTTP Tracking URL of the node.
      • +
    • Rack name for the node.
      • +
    • Used {@link Resource} on the node.
      • +
    • Total available {@link Resource} of the node.
      • +
    • Number of running containers on the node.
      • +
    + + @see ApplicationClientProtocol#getClusterNodes(org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesRequest)]]> +     +     + + + + + + + + + + + + State of a Node.

    ]]> +     +     + + + + + + + + + + + + ResourceManager. + @see PreemptionContract + @see StrictPreemptionContract]]> + + + + + + + + + + ApplicationMaster about resources requested back by the + ResourceManager. + @see AllocateRequest#setAskList(List)]]> + + + + + ApplicationMaster that may be reclaimed by the + ResourceManager. If the AM prefers a different set of + containers, then it may checkpoint or kill containers matching the + description in {@link #getResourceRequest}. + @return Set of containers at risk if the contract is not met.]]> + + + + ResourceManager. + The ApplicationMaster (AM) can satisfy this request according + to its own priorities to prevent containers from being forcibly killed by + the platform. + @see PreemptionMessage]]> + + + + + + + + + + ResourceManager]]> + + + + + + + + + + The AM should decode both parts of the message. The {@link + StrictPreemptionContract} specifies particular allocations that the RM + requires back. The AM can checkpoint containers' state, adjust its execution + plan to move the computation, or take no action and hope that conditions that + caused the RM to ask for the container will change. +

    + In contrast, the {@link PreemptionContract} also includes a description of + resources with a set of containers. If the AM releases containers matching + that profile, then the containers enumerated in {@link + PreemptionContract#getContainers()} may not be killed. +

    + Each preemption message reflects the RM's current understanding of the + cluster state, so a request to return N containers may not + reflect containers the AM is releasing, recently exited containers the RM has + yet to learn about, or new containers allocated before the message was + generated. Conversely, an RM may request a different profile of containers in + subsequent requests. +

    + The policy enforced by the RM is part of the scheduler. Generally, only + containers that have been requested consistently should be killed, but the + details are not specified.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The ACL is one of: +

      +
    • + {@link #SUBMIT_APPLICATIONS} - ACL to submit applications to the queue. +
      • +
    • {@link #ADMINISTER_QUEUE} - ACL to administer the queue.
      • +
    + + @see QueueInfo + @see ApplicationClientProtocol#getQueueUserAcls(org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + + + name of the queue. + @return name of the queue]]> + + + + + configured capacity of the queue. + @return configured capacity of the queue]]> + + + + + maximum capacity of the queue. + @return maximum capacity of the queue]]> + + + + + current capacity of the queue. + @return current capacity of the queue]]> + + + + + child queues of the queue. + @return child queues of the queue]]> + + + + + running applications of the queue. + @return running applications of the queue]]> + + + + + QueueState of the queue. + @return QueueState of the queue]]> + + + + + accessible node labels of the queue. + @return accessible node labels of the queue]]> + + + + + default node label expression of the queue, this takes + affect only when the ApplicationSubmissionContext and + ResourceRequest don't specify their + NodeLabelExpression. + + @return default node label expression of the queue]]> + + + + + + + + It includes information such as: +
      +
    • Queue name.
      • +
    • Capacity of the queue.
      • +
    • Maximum capacity of the queue.
      • +
    • Current capacity of the queue.
      • +
    • Child queues.
      • +
    • Running applications.
      • +
    • {@link QueueState} of the queue.
      • +
    + + @see QueueState + @see ApplicationClientProtocol#getQueueInfo(org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoRequest)]]> +     +     + + + + + + + + + + + A queue is in one of: +
      +
    • {@link #RUNNING} - normal state.
      • +
    • {@link #STOPPED} - not accepting new application submissions.
      • +
    + + @see QueueInfo + @see ApplicationClientProtocol#getQueueInfo(org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoRequest)]]> +     +     + + + + + + + + queue name of the queue. + @return queue name of the queue]]> + + + + + QueueACL for the given user. + @return list of QueueACL for the given user]]> + + + + QueueUserACLInfo provides information {@link QueueACL} for + the given user.

    + + @see QueueACL + @see ApplicationClientProtocol#getQueueUserAcls(org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + start time of the {@code ResourceManager} which is used to + generate globally unique {@link ReservationId}. + + @return start time of the {@code ResourceManager}]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + {@link ReservationId} represents the globally unique identifier for + a reservation. +

    + +

    + The globally unique nature of the identifier is achieved by using the + cluster timestamp i.e. start-time of the {@code ResourceManager} + along with a monotonically increasing counter for the reservation. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + It includes: +
      +
    • {@link Resource} required for each request.
      • +
    • + Number of containers, of above specifications, which are required by the + application. +
      • +
    • Concurrency that indicates the gang size of the request.
      • +
    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + memory of the resource. + @return memory of the resource]]> + + + + + + memory of the resource. + @param memory memory of the resource]]> + + + + + number of virtual cpu cores of the resource. + + Virtual cores are a unit for expressing CPU parallelism. A node's capacity + should be configured with virtual cores equal to its number of physical cores. + A container should be requested with the number of cores it can saturate, i.e. + the average number of threads it expects to have runnable at a time. + + @return num of virtual cpu cores of the resource]]> + + + + + + number of virtual cpu cores of the resource. + + Virtual cores are a unit for expressing CPU parallelism. A node's capacity + should be configured with virtual cores equal to its number of physical cores. + A container should be requested with the number of cores it can saturate, i.e. + the average number of threads it expects to have runnable at a time. + + @param vCores number of virtual cpu cores of the resource]]> + + + + + + + + + + + Resource models a set of computer resources in the + cluster.

    + +

    Currently it models both memory and CPU.

    + +

    The unit for memory is megabytes. CPU is modeled with virtual cores + (vcores), a unit for expressing parallelism. A node's capacity should + be configured with virtual cores equal to its number of physical cores. A + container should be requested with the number of cores it can saturate, i.e. + the average number of threads it expects to have runnable at a time.

    + +

    Virtual cores take integer values and thus currently CPU-scheduling is + very coarse. A complementary axis for CPU requests that represents processing + power will likely be added in the future to enable finer-grained resource + configuration.

    + +

    Typically, applications request Resource of suitable + capability to run their component tasks.

    + + @see ResourceRequest + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + blacklist of resources + for the application. + + @see ResourceRequest + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + host/rack string represents an arbitrary + host name. + + @param hostName host/rack on which the allocation is desired + @return whether the given host/rack string represents an arbitrary + host name]]> + + + + + Priority of the request. + @return Priority of the request]]> + + + + + + Priority of the request + @param priority Priority of the request]]> + + + + + host/rack) on which the allocation + is desired. + + A special value of * signifies that any resource + (host/rack) is acceptable. + + @return resource (e.g. host/rack) on which the allocation + is desired]]> + + + + + + host/rack) on which the allocation + is desired. + + A special value of * signifies that any resource name + (e.g. host/rack) is acceptable. + + @param resourceName (e.g. host/rack) on which the + allocation is desired]]> + + + + + Resource capability of the request. + @return Resource capability of the request]]> + + + + + + Resource capability of the request + @param capability Resource capability of the request]]> + + + + + + + + + + + + + + + + ResourceRequest. Defaults to true. + + @return whether locality relaxation is enabled with this + ResourceRequest.]]> + + + + + + For a request at a network hierarchy level, set whether locality can be relaxed + to that level and beyond.

    + +

    If the flag is off on a rack-level ResourceRequest, + containers at that request's priority will not be assigned to nodes on that + request's rack unless requests specifically for those nodes have also been + submitted.

    + +

    If the flag is off on an {@link ResourceRequest#ANY}-level + ResourceRequest, containers at that request's priority will + only be assigned on racks for which specific requests have also been + submitted.

    + +

    For example, to request a container strictly on a specific node, the + corresponding rack-level and any-level requests should have locality + relaxation set to false. Similarly, to request a container strictly on a + specific rack, the corresponding any-level request should have locality + relaxation set to false.

    + + @param relaxLocality whether locality relaxation is enabled with this + ResourceRequest.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + It includes: +

      +
    • {@link Priority} of the request.
      • +
    • + The name of the machine or rack on which the allocation is + desired. A special value of * signifies that + any host/rack is acceptable to the application. +
      • +
    • {@link Resource} required for each request.
      • +
    • + Number of containers, of above specifications, which are required + by the application. +
      • +
    • + A boolean relaxLocality flag, defaulting to {@code true}, + which tells the {@code ResourceManager} if the application wants + locality to be loose (i.e. allows fall-through to rack or any) + or strict (i.e. specify hard constraint on resource allocation). +
      • +
    + + @see Resource + @see ApplicationMasterProtocol#allocate(org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + ApplicationMaster that may be reclaimed by the + ResourceManager. + @return the set of {@link ContainerId} to be preempted.]]> + + + + ApplicationMaster (AM) + may attempt to checkpoint work or adjust its execution plan to accommodate + it. In contrast to {@link PreemptionContract}, the AM has no flexibility in + selecting which resources to return to the cluster. + @see PreemptionMessage]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Token is the security entity used by the framework + to verify authenticity of any resource.

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + URL represents a serializable {@link java.net.URL}.

    ]]> +     +     + + + + + + + + + + RMAppAttempt.]]> + + + + + + + + + + + + ApplicationMaster.]]> + + + + + + + + + + NodeManagers in the cluster. + @return number of NodeManagers in the cluster]]> + + + + YarnClusterMetrics represents cluster metrics.

    + +

    Currently only number of NodeManagers is provided.

    ]]> +     +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + This class contains the information about a timeline domain, which is used + to a user to host a number of timeline entities, isolating them from others'. + The user can also define the reader and writer users/groups for the the + domain, which is used to control the access to its entities. +

    + +

    + The reader and writer users/groups pattern that the user can supply is the + same as what AccessControlList takes. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The class that contains the the meta information of some conceptual entity + and its related events. The entity can be an application, an application + attempt, a container or whatever the user-defined object. +

    + +

    + Primary filters will be used to index the entities in + TimelineStore, such that users should carefully choose the + information they want to store as the primary filters. The remaining can be + stored as other information. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + + + + + + + + + + + + + name property as a + InetSocketAddress. On a HA cluster, + this fetches the address corresponding to the RM identified by + {@link #RM_HA_ID}. + @param name property name. + @param defaultAddress the default value + @param defaultPort the default port + @return InetSocketAddress]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Default platform-specific CLASSPATH for YARN applications. A + comma-separated list of CLASSPATH entries constructed based on the client + OS environment expansion syntax. +

    +

    + Note: Use {@link #DEFAULT_YARN_CROSS_PLATFORM_APPLICATION_CLASSPATH} for + cross-platform practice i.e. submit an application from a Windows client to + a Linux/Unix server or vice versa. +

    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The information is passed along to applications via + {@link StartContainersResponse#getAllServicesMetaData()} that is returned by + {@link ContainerManagementProtocol#startContainers(StartContainersRequest)} +

    + + @return meta-data for this service that should be made available to + applications.]]> +     +     + + + + + + + + + + + + + + + + + + + + + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The method used by administrators to ask SCM to run cleaner task right away +

    + + @param request request SharedCacheManager to run a cleaner task + @return SharedCacheManager returns an empty response + on success and throws an exception on rejecting the request + @throws YarnException + @throws IOException]]> +     +     + + + The protocol between administrators and the SharedCacheManager +

    ]]> +     +     + +     + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Client.2.6.0.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Client.2.6.0.xml new file mode 100644 index 00000000000..aa11aea2552 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Client.2.6.0.xml @@ -0,0 +1,2427 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + Get a report of the given Application. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + +

    + If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

      +
    • host - set to "N/A"
      • +
    • RPC port - set to -1
      • +
    • client token - set to "N/A"
      • +
    • diagnostics - set to "N/A"
      • +
    • tracking URL - set to "N/A"
      • +
    • original tracking URL - set to "N/A"
      • +
    • resource usage report - all values are -1
      • +
    +

    + + @param appId + {@link ApplicationId} of the application that needs a report + @return application report + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get a report (ApplicationReport) of all Applications in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @return a list of reports for all applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given ApplicationAttempt. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param applicationAttemptId + {@link ApplicationAttemptId} of the application attempt that needs + a report + @return application attempt report + @throws YarnException + @throws {@link ApplicationAttemptNotFoundException} if application attempt + not found + @throws IOException]]> +     +     + + + + + + + Get a report of all (ApplicationAttempts) of Application in the cluster. +

    + + @param applicationId + @return a list of reports for all application attempts for specified + application + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given Container. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param containerId + {@link ContainerId} of the container that needs a report + @return container report + @throws YarnException + @throws {@link ContainerNotFoundException} if container not found + @throws IOException]]> +     +     + + + + + + + Get a report of all (Containers) of ApplicationAttempt in the cluster. +

    + + @param applicationAttemptId + @return a list of reports of all containers for specified application + attempt + @throws YarnException + @throws IOException]]> +     +     +     + + + + + + + + + {@code + AMRMClient.createAMRMClientContainerRequest() + } + @return the newly create AMRMClient instance.]]> + + + + + + + + + + RegisterApplicationMasterResponse + @throws YarnException + @throws IOException]]> + + + + + + + + addContainerRequest are sent to the + ResourceManager. New containers assigned to the master are + retrieved. Status of completed containers and node health updates are also + retrieved. This also doubles up as a heartbeat to the ResourceManager and + must be made periodically. The call may not always return any new + allocations of containers. App should not make concurrent allocate + requests. May cause request loss. + +

    + Note : If the user has not removed container requests that have already + been satisfied, then the re-register may end up sending the entire + container requests to the RM (including matched requests). Which would mean + the RM could end up giving it a lot of new allocated containers. +

    + + @param progressIndicator Indicates progress made by the master + @return the response of the allocate request + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + + + + + + + allocate + @param req Resource request]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ContainerRequests matching the given + parameters. These ContainerRequests should have been added via + addContainerRequest earlier in the lifecycle. For performance, + the AMRMClient may return its internal collection directly without creating + a copy. Users should not perform mutable operations on the return value. + Each collection in the list contains requests with identical + Resource size that fit in the given capability. In a + collection, requests will be returned in the same order as they were added. + @return Collection of request matching the parameters]]> + + + + + + + + + + + + + AMRMClient. This cache must + be shared with the {@link NMClient} used to manage containers for the + AMRMClient +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @param nmTokenCache the NM token cache to use.]]> + + + + + AMRMClient. This cache must be + shared with the {@link NMClient} used to manage containers for the + AMRMClient. +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @return the NM token cache.]]> + + + + + + + check to return true for each 1000 ms. + See also {@link #waitFor(com.google.common.base.Supplier, int)} + and {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check]]> + + + + + + + + check to return true for each + checkEveryMillis ms. + See also {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check user defined checker + @param checkEveryMillis interval to call check]]> + + + + + + + + + check to return true for each + checkEveryMillis ms. In the main loop, this method will log + the message "waiting in main loop" for each logInterval times + iteration to confirm the thread is alive. + @param check user defined checker + @param checkEveryMillis interval to call check + @param logInterval interval to log for each]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

  • Within a priority, all container requests must have the same value for + locality relaxation. Either enabled or disabled.
    • +
  • If locality relaxation is disabled, then across requests, locations at + different network levels may not be specified. E.g. its invalid to make a + request for a specific node and another request for a specific rack.
    • +
  • If locality relaxation is disabled, then only within the same request, + a node and its rack may be specified together. This allows for a specific + rack with a preference for a specific node within that rack.
    • +
  • + + To re-enable locality relaxation at a given priority, all pending requests + with locality relaxation disabled must be first removed. Then they can be + added back with locality relaxation enabled. + + All getters return immutable values.]]> +     +     + + + + + + + + + + + AMRMClient.ContainerRequest in an invalid way.]]> + + + + + + + + + + + + + + + + + + + + + + + + + Start an allocated container.

    + +

    The ApplicationMaster or other applications that use the + client must provide the details of the allocated container, including the + Id, the assigned node's Id and the token via {@link Container}. In + addition, the AM needs to provide the {@link ContainerLaunchContext} as + well.

    + + @param container the allocated container + @param containerLaunchContext the context information needed by the + NodeManager to launch the + container + @return a map between the auxiliary service names and their outputs + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Stop an started container.

    + + @param containerId the Id of the started container + @param nodeId the Id of the NodeManager + + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Query the status of a container.

    + + @param containerId the Id of the started container + @param nodeId the Id of the NodeManager + + @return the status of a container + @throws YarnException + @throws IOException]]> +     +     + + + + Set whether the containers that are started by this client, and are + still running should be stopped when the client stops. By default, the + feature should be enabled.

    However, containers will be stopped only + when service is stopped. i.e. after {@link NMClient#stop()}. + + @param enabled whether the feature is enabled or not]]> +     +     + + + + NMClient. This cache must be + shared with the {@link AMRMClient} that requested the containers managed + by this NMClient +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @param nmTokenCache the NM token cache to use.]]> + + + + + NMClient. This cache must be + shared with the {@link AMRMClient} that requested the containers managed + by this NMClient +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @return the NM token cache]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + By default Yarn client libraries {@link AMRMClient} and {@link NMClient} use + {@link #getSingleton()} instance of the cache. +

      +
    • Using the singleton instance of the cache is appropriate when running a + single ApplicationMaster in the same JVM.
      • +
    • When using the singleton, users don't need to do anything special, + {@link AMRMClient} and {@link NMClient} are already set up to use the default + singleton {@link NMTokenCache}
      • +
    +

    + If running multiple Application Masters in the same JVM, a different cache + instance should be used for each Application Master. +

    +

      +
    • + If using the {@link AMRMClient} and the {@link NMClient}, setting up and using + an instance cache is as follows: +

      + + 

      +   NMTokenCache nmTokenCache = new NMTokenCache();
+   AMRMClient rmClient = AMRMClient.createAMRMClient();
+   NMClient nmClient = NMClient.createNMClient();
+   nmClient.setNMTokenCache(nmTokenCache);
+   ...
+
      +
      • +
    • + If using the {@link AMRMClientAsync} and the {@link NMClientAsync}, setting up + and using an instance cache is as follows: +

      + + 

      +   NMTokenCache nmTokenCache = new NMTokenCache();
+   AMRMClient rmClient = AMRMClient.createAMRMClient();
+   NMClient nmClient = NMClient.createNMClient();
+   nmClient.setNMTokenCache(nmTokenCache);
+   AMRMClientAsync rmClientAsync = new AMRMClientAsync(rmClient, 1000, [AMRM_CALLBACK]);
+   NMClientAsync nmClientAsync = new NMClientAsync("nmClient", nmClient, [NM_CALLBACK]);
+   ...
+
      +
      • +
    • + If using {@link ApplicationMasterProtocol} and + {@link ContainerManagementProtocol} directly, setting up and using an + instance cache is as follows: +

      + + 

      +   NMTokenCache nmTokenCache = new NMTokenCache();
+   ...
+   ApplicationMasterProtocol amPro = ClientRMProxy.createRMProxy(conf, ApplicationMasterProtocol.class);
+   ...
+   AllocateRequest allocateRequest = ...
+   ...
+   AllocateResponse allocateResponse = rmClient.allocate(allocateRequest);
+   for (NMToken token : allocateResponse.getNMTokens()) {
+     nmTokenCache.setToken(token.getNodeId().toString(), token.getToken());
+   }
+   ...
+   ContainerManagementProtocolProxy nmPro = ContainerManagementProtocolProxy(conf, nmTokenCache);
+   ...
+   nmPro.startContainer(container, containerContext);
+   ...
+
      +
      • +
    + It is also possible to mix the usage of a client (AMRMClient or + NMClient, or the async versions of them) with a protocol proxy ( + ContainerManagementProtocolProxy or + ApplicationMasterProtocol).]]> +     +     + + + + + + + + + + + + + + + + Obtain a {@link YarnClientApplication} for a new application, + which in turn contains the {@link ApplicationSubmissionContext} and + {@link org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse} + objects. +

    + + @return {@link YarnClientApplication} built for a new application + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Submit a new application to YARN. It is a blocking call - it + will not return {@link ApplicationId} until the submitted application is + submitted successfully and accepted by the ResourceManager. +

    + +

    + Users should provide an {@link ApplicationId} as part of the parameter + {@link ApplicationSubmissionContext} when submitting a new application, + otherwise it will throw the {@link ApplicationIdNotProvidedException}. +

    + +

    This internally calls {@link ApplicationClientProtocol#submitApplication + (SubmitApplicationRequest)}, and after that, it internally invokes + {@link ApplicationClientProtocol#getApplicationReport + (GetApplicationReportRequest)} and waits till it can make sure that the + application gets properly submitted. If RM fails over or RM restart + happens before ResourceManager saves the application's state, + {@link ApplicationClientProtocol + #getApplicationReport(GetApplicationReportRequest)} will throw + the {@link ApplicationNotFoundException}. This API automatically resubmits + the application with the same {@link ApplicationSubmissionContext} when it + catches the {@link ApplicationNotFoundException}

    + + @param appContext + {@link ApplicationSubmissionContext} containing all the details + needed to submit a new application + @return {@link ApplicationId} of the accepted application + @throws YarnException + @throws IOException + @see #createApplication()]]> +     +     + + + + + + + Kill an application identified by given ID. +

    + + @param applicationId + {@link ApplicationId} of the application that needs to be killed + @throws YarnException + in case of errors or if YARN rejects the request due to + access-control restrictions. + @throws IOException + @see #getQueueAclsInfo()]]> +     +     + + + + + + + Get a report of the given Application. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + +

    + If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

      +
    • host - set to "N/A"
      • +
    • RPC port - set to -1
      • +
    • client token - set to "N/A"
      • +
    • diagnostics - set to "N/A"
      • +
    • tracking URL - set to "N/A"
      • +
    • original tracking URL - set to "N/A"
      • +
    • resource usage report - all values are -1
      • +
    +

    + + @param appId + {@link ApplicationId} of the application that needs a report + @return application report + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The AMRM token is required for AM to RM scheduling operations. For + managed Application Masters Yarn takes care of injecting it. For unmanaged + Applications Masters, the token must be obtained via this method and set + in the {@link org.apache.hadoop.security.UserGroupInformation} of the + current user. +

    + The AMRM token will be returned only if all the following conditions are + met: +

  • +
      the requester is the owner of the ApplicationMaster
    +
      the application master is an unmanaged ApplicationMaster
    +
      the application master is in ACCEPTED state
    +
    • + Else this method returns NULL. + + @param appId {@link ApplicationId} of the application to get the AMRM token + @return the AMRM token if available + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get a report (ApplicationReport) of all Applications in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @return a list of reports of all running applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report (ApplicationReport) of Applications + matching the given application types in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @param applicationTypes + @return a list of reports of applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report (ApplicationReport) of Applications matching the given + application states in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @param applicationStates + @return a list of reports of applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + Get a report (ApplicationReport) of Applications matching the given + application types and application states in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @param applicationTypes + @param applicationStates + @return a list of reports of applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get metrics ({@link YarnClusterMetrics}) about the cluster. +

    + + @return cluster metrics + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of nodes ({@link NodeReport}) in the cluster. +

    + + @param states The {@link NodeState}s to filter on. If no filter states are + given, nodes in all states will be returned. + @return A list of node reports + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a delegation token so as to be able to talk to YARN using those tokens. + + @param renewer + Address of the renewer who can renew these tokens when needed by + securely talking to YARN. + @return a delegation token ({@link Token}) that can be used to + talk to YARN + @throws YarnException + @throws IOException]]> + + + + + + + + + Get information ({@link QueueInfo}) about a given queue. +

    + + @param queueName + Name of the queue whose information is needed + @return queue information + @throws YarnException + in case of errors or if YARN rejects the request due to + access-control restrictions. + @throws IOException]]> +     +     + + + + + + Get information ({@link QueueInfo}) about all queues, recursively if there + is a hierarchy +

    + + @return a list of queue-information for all queues + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get information ({@link QueueInfo}) about top level queues. +

    + + @return a list of queue-information for all the top-level queues + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get information ({@link QueueInfo}) about all the immediate children queues + of the given queue +

    + + @param parent + Name of the queue whose child-queues' information is needed + @return a list of queue-information for all queues who are direct children + of the given parent queue. + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get information about acls for current user on all the + existing queues. +

    + + @return a list of queue acls ({@link QueueUserACLInfo}) for + current user + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given ApplicationAttempt. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param applicationAttemptId + {@link ApplicationAttemptId} of the application attempt that needs + a report + @return application attempt report + @throws YarnException + @throws {@link ApplicationAttemptNotFoundException} if application attempt + not found + @throws IOException]]> +     +     + + + + + + + Get a report of all (ApplicationAttempts) of Application in the cluster. +

    + + @param applicationId + @return a list of reports for all application attempts for specified + application. + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given Container. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param containerId + {@link ContainerId} of the container that needs a report + @return container report + @throws YarnException + @throws {@link ContainerNotFoundException} if container not found. + @throws IOException]]> +     +     + + + + + + + Get a report of all (Containers) of ApplicationAttempt in the cluster. +

    + + @param applicationAttemptId + @return a list of reports of all containers for specified application + attempts + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + Attempts to move the given application to the given queue. +

    + + @param appId + Application to move. + @param queue + Queue to place it in to. + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The interface used by clients to submit a new reservation to the + {@code ResourceManager}. +

    + +

    + The client packages all details of its request in a + {@link ReservationSubmissionRequest} object. This contains information + about the amount of capacity, temporal constraints, and gang needs. + Furthermore, the reservation might be composed of multiple stages, with + ordering dependencies among them. +

    + +

    + In order to respond, a new admission control component in the + {@code ResourceManager} performs an analysis of the resources that have + been committed over the period of time the user is requesting, verify that + the user requests can be fulfilled, and that it respect a sharing policy + (e.g., {@code CapacityOverTimePolicy}). Once it has positively determined + that the ReservationRequest is satisfiable the {@code ResourceManager} + answers with a {@link ReservationSubmissionResponse} that includes a + {@link ReservationId}. Upon failure to find a valid allocation the response + is an exception with the message detailing the reason of failure. +

    + +

    + The semantics guarantees that the {@link ReservationId} returned, + corresponds to a valid reservation existing in the time-range request by + the user. The amount of capacity dedicated to such reservation can vary + overtime, depending of the allocation that has been determined. But it is + guaranteed to satisfy all the constraint expressed by the user in the + {@link ReservationDefinition} +

    + + @param request request to submit a new Reservation + @return response contains the {@link ReservationId} on accepting the + submission + @throws YarnException if the reservation cannot be created successfully + @throws IOException]]> +     +     + + + + + + + The interface used by clients to update an existing Reservation. This is + referred to as a re-negotiation process, in which a user that has + previously submitted a Reservation. +

    + +

    + The allocation is attempted by virtually substituting all previous + allocations related to this Reservation with new ones, that satisfy the new + {@link ReservationDefinition}. Upon success the previous allocation is + atomically substituted by the new one, and on failure (i.e., if the system + cannot find a valid allocation for the updated request), the previous + allocation remains valid. +

    + + @param request to update an existing Reservation (the + {@link ReservationUpdateRequest} should refer to an existing valid + {@link ReservationId}) + @return response empty on successfully updating the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + updated successfully + @throws IOException]]> +     +     + + + + + + + The interface used by clients to remove an existing Reservation. +

    + + @param request to remove an existing Reservation (the + {@link ReservationDeleteRequest} should refer to an existing valid + {@link ReservationId}) + @return response empty on successfully deleting the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + deleted successfully + @throws IOException]]> +     +     + + + + + + The interface used by client to get node to labels mappings in existing cluster +

    + + @return node to labels mappings + @throws YarnException + @throws IOException]]> +     +     + + + + + + The interface used by client to get node labels in the cluster +

    + + @return cluster node labels collection + @throws YarnException + @throws IOException]]> +     +     +     + + + + + + + + + + + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + allocate + @param req Resource request]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + check to return true for each 1000 ms. + See also {@link #waitFor(com.google.common.base.Supplier, int)} + and {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check]]> + + + + + + + + check to return true for each + checkEveryMillis ms. + See also {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check user defined checker + @param checkEveryMillis interval to call check]]> + + + + + + + + + check to return true for each + checkEveryMillis ms. In the main loop, this method will log + the message "waiting in main loop" for each logInterval times + iteration to confirm the thread is alive. + @param check user defined checker + @param checkEveryMillis interval to call check + @param logInterval interval to log for each]]> + + + + + + + + + + AMRMClientAsync handles communication with the ResourceManager + and provides asynchronous updates on events such as container allocations and + completions. It contains a thread that sends periodic heartbeats to the + ResourceManager. + + It should be used by implementing a CallbackHandler: + 
    + {@code
+ class MyCallbackHandler implements AMRMClientAsync.CallbackHandler {
+   public void onContainersAllocated(List containers) {
+     [run tasks on the containers]
+   }
+
+   public void onContainersCompleted(List statuses) {
+     [update progress, check whether app is done]
+   }
+
+   public void onNodesUpdated(List updated) {}
+
+   public void onReboot() {}
+ }
+ }
+
    + + The client's lifecycle should be managed similarly to the following: + + 
    + {@code
+ AMRMClientAsync asyncClient =
+     createAMRMClientAsync(appAttId, 1000, new MyCallbackhandler());
+ asyncClient.init(conf);
+ asyncClient.start();
+ RegisterApplicationMasterResponse response = asyncClient
+    .registerApplicationMaster(appMasterHostname, appMasterRpcPort,
+       appMasterTrackingUrl);
+ asyncClient.addContainerRequest(containerRequest);
+ [... wait for application to complete]
+ asyncClient.unregisterApplicationMaster(status, appMsg, trackingUrl);
+ asyncClient.stop();
+ }
+
    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + NMClientAsync handles communication with all the NodeManagers + and provides asynchronous updates on getting responses from them. It + maintains a thread pool to communicate with individual NMs where a number of + worker threads process requests to NMs by using {@link NMClientImpl}. The max + size of the thread pool is configurable through + {@link YarnConfiguration#NM_CLIENT_ASYNC_THREAD_POOL_MAX_SIZE}. + + It should be used in conjunction with a CallbackHandler. For example + + 
    + {@code
+ class MyCallbackHandler implements NMClientAsync.CallbackHandler {
+   public void onContainerStarted(ContainerId containerId,
+       Map allServiceResponse) {
+     [post process after the container is started, process the response]
+   }
+
+   public void onContainerStatusReceived(ContainerId containerId,
+       ContainerStatus containerStatus) {
+     [make use of the status of the container]
+   }
+
+   public void onContainerStopped(ContainerId containerId) {
+     [post process after the container is stopped]
+   }
+
+   public void onStartContainerError(
+       ContainerId containerId, Throwable t) {
+     [handle the raised exception]
+   }
+
+   public void onGetContainerStatusError(
+       ContainerId containerId, Throwable t) {
+     [handle the raised exception]
+   }
+
+   public void onStopContainerError(
+       ContainerId containerId, Throwable t) {
+     [handle the raised exception]
+   }
+ }
+ }
+
    + + The client's life-cycle should be managed like the following: + + 
    + {@code
+ NMClientAsync asyncClient =
+     NMClientAsync.createNMClientAsync(new MyCallbackhandler());
+ asyncClient.init(conf);
+ asyncClient.start();
+ asyncClient.startContainer(container, containerLaunchContext);
+ [... wait for container being started]
+ asyncClient.getContainerStatus(container.getId(), container.getNodeId(),
+     container.getContainerToken());
+ [... handle the status in the callback instance]
+ asyncClient.stopContainer(container.getId(), container.getNodeId(),
+     container.getContainerToken());
+ [... wait for container being stopped]
+ asyncClient.stop();
+ }
+
    ]]> +     +     + + + + + + + + NodeManager responds to indicate its + acceptance of the starting container request + @param containerId the Id of the container + @param allServiceResponse a Map between the auxiliary service names and + their outputs]]> + + + + + + + NodeManager responds with the status + of the container + @param containerId the Id of the container + @param containerStatus the status of the container]]> + + + + + + NodeManager responds to indicate the + container is stopped. + @param containerId the Id of the container]]> + + + + + + + + + + + + + + + + + + + + + + + + + + The callback interface needs to be implemented by {@link NMClientAsync} + users. The APIs are called when responses from NodeManager are + available. +

    + +

    + Once a callback happens, the users can chose to act on it in blocking or + non-blocking manner. If the action on callback is done in a blocking + manner, some of the threads performing requests on NodeManagers may get + blocked depending on how many threads in the pool are busy. +

    + +

    + The implementation of the callback function should not throw the + unexpected exception. Otherwise, {@link NMClientAsync} will just + catch, log and then ignore it. +

    ]]> +     +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Client_2.7.2.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Client_2.7.2.xml new file mode 100644 index 00000000000..158528d6cfd --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Client_2.7.2.xml @@ -0,0 +1,2581 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

      +
    • host - set to "N/A"
      • +
    • RPC port - set to -1
      • +
    • client token - set to "N/A"
      • +
    • diagnostics - set to "N/A"
      • +
    • tracking URL - set to "N/A"
      • +
    • original tracking URL - set to "N/A"
      • +
    • resource usage report - all values are -1
      • +
    + + @param appId + {@link ApplicationId} of the application that needs a report + @return application report + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get a report (ApplicationReport) of all Applications in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @return a list of reports for all applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given ApplicationAttempt. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param applicationAttemptId + {@link ApplicationAttemptId} of the application attempt that needs + a report + @return application attempt report + @throws YarnException + @throws ApplicationAttemptNotFoundException if application attempt + not found + @throws IOException]]> +     +     + + + + + + + Get a report of all (ApplicationAttempts) of Application in the cluster. +

    + + @param applicationId + @return a list of reports for all application attempts for specified + application + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given Container. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param containerId + {@link ContainerId} of the container that needs a report + @return container report + @throws YarnException + @throws ContainerNotFoundException if container not found + @throws IOException]]> +     +     + + + + + + + Get a report of all (Containers) of ApplicationAttempt in the cluster. +

    + + @param applicationAttemptId + @return a list of reports of all containers for specified application + attempt + @throws YarnException + @throws IOException]]> +     +     +     + + + + + + + + + {@code + AMRMClient.createAMRMClientContainerRequest() + } + @return the newly create AMRMClient instance.]]> + + + + + + + + + + RegisterApplicationMasterResponse + @throws YarnException + @throws IOException]]> + + + + + + + + addContainerRequest are sent to the + ResourceManager. New containers assigned to the master are + retrieved. Status of completed containers and node health updates are also + retrieved. This also doubles up as a heartbeat to the ResourceManager and + must be made periodically. The call may not always return any new + allocations of containers. App should not make concurrent allocate + requests. May cause request loss. + +

    + Note : If the user has not removed container requests that have already + been satisfied, then the re-register may end up sending the entire + container requests to the RM (including matched requests). Which would mean + the RM could end up giving it a lot of new allocated containers. +

    + + @param progressIndicator Indicates progress made by the master + @return the response of the allocate request + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + + + + + + + allocate + @param req Resource request]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ContainerRequests matching the given + parameters. These ContainerRequests should have been added via + addContainerRequest earlier in the lifecycle. For performance, + the AMRMClient may return its internal collection directly without creating + a copy. Users should not perform mutable operations on the return value. + Each collection in the list contains requests with identical + Resource size that fit in the given capability. In a + collection, requests will be returned in the same order as they were added. + @return Collection of request matching the parameters]]> + + + + + + + + + + + + + AMRMClient. This cache must + be shared with the {@link NMClient} used to manage containers for the + AMRMClient +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @param nmTokenCache the NM token cache to use.]]> + + + + + AMRMClient. This cache must be + shared with the {@link NMClient} used to manage containers for the + AMRMClient. +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @return the NM token cache.]]> + + + + + + + check to return true for each 1000 ms. + See also {@link #waitFor(com.google.common.base.Supplier, int)} + and {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check]]> + + + + + + + + check to return true for each + checkEveryMillis ms. + See also {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check user defined checker + @param checkEveryMillis interval to call check]]> + + + + + + + + + check to return true for each + checkEveryMillis ms. In the main loop, this method will log + the message "waiting in main loop" for each logInterval times + iteration to confirm the thread is alive. + @param check user defined checker + @param checkEveryMillis interval to call check + @param logInterval interval to log for each]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

  • Within a priority, all container requests must have the same value for + locality relaxation. Either enabled or disabled.
    • +
  • If locality relaxation is disabled, then across requests, locations at + different network levels may not be specified. E.g. its invalid to make a + request for a specific node and another request for a specific rack.
    • +
  • If locality relaxation is disabled, then only within the same request, + a node and its rack may be specified together. This allows for a specific + rack with a preference for a specific node within that rack.
    • +
  • + + To re-enable locality relaxation at a given priority, all pending requests + with locality relaxation disabled must be first removed. Then they can be + added back with locality relaxation enabled. + + All getters return immutable values.]]> +     +     + + + + + + + + + + + AMRMClient.ContainerRequest in an invalid way.]]> + + + + + + + + + + + + + + + + + + + + + + + + + Start an allocated container.

    + +

    The ApplicationMaster or other applications that use the + client must provide the details of the allocated container, including the + Id, the assigned node's Id and the token via {@link Container}. In + addition, the AM needs to provide the {@link ContainerLaunchContext} as + well.

    + + @param container the allocated container + @param containerLaunchContext the context information needed by the + NodeManager to launch the + container + @return a map between the auxiliary service names and their outputs + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Stop an started container.

    + + @param containerId the Id of the started container + @param nodeId the Id of the NodeManager + + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Query the status of a container.

    + + @param containerId the Id of the started container + @param nodeId the Id of the NodeManager + + @return the status of a container + @throws YarnException + @throws IOException]]> +     +     + + + + Set whether the containers that are started by this client, and are + still running should be stopped when the client stops. By default, the + feature should be enabled.

    However, containers will be stopped only + when service is stopped. i.e. after {@link NMClient#stop()}. + + @param enabled whether the feature is enabled or not]]> +     +     + + + + NMClient. This cache must be + shared with the {@link AMRMClient} that requested the containers managed + by this NMClient +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @param nmTokenCache the NM token cache to use.]]> + + + + + NMClient. This cache must be + shared with the {@link AMRMClient} that requested the containers managed + by this NMClient +

    + If a NM token cache is not set, the {@link NMTokenCache#getSingleton()} + singleton instance will be used. + + @return the NM token cache]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + By default Yarn client libraries {@link AMRMClient} and {@link NMClient} use + {@link #getSingleton()} instance of the cache. +

      +
    • + Using the singleton instance of the cache is appropriate when running a + single ApplicationMaster in the same JVM. +
      • +
    • + When using the singleton, users don't need to do anything special, + {@link AMRMClient} and {@link NMClient} are already set up to use the + default singleton {@link NMTokenCache} +
      • +
    + If running multiple Application Masters in the same JVM, a different cache + instance should be used for each Application Master. +
      +
    • + If using the {@link AMRMClient} and the {@link NMClient}, setting up + and using an instance cache is as follows: + 
      +   NMTokenCache nmTokenCache = new NMTokenCache();
+   AMRMClient rmClient = AMRMClient.createAMRMClient();
+   NMClient nmClient = NMClient.createNMClient();
+   nmClient.setNMTokenCache(nmTokenCache);
+   ...
+
      +
      • +
    • + If using the {@link AMRMClientAsync} and the {@link NMClientAsync}, + setting up and using an instance cache is as follows: + 
      +   NMTokenCache nmTokenCache = new NMTokenCache();
+   AMRMClient rmClient = AMRMClient.createAMRMClient();
+   NMClient nmClient = NMClient.createNMClient();
+   nmClient.setNMTokenCache(nmTokenCache);
+   AMRMClientAsync rmClientAsync = new AMRMClientAsync(rmClient, 1000, [AMRM_CALLBACK]);
+   NMClientAsync nmClientAsync = new NMClientAsync("nmClient", nmClient, [NM_CALLBACK]);
+   ...
+
      +
      • +
    • + If using {@link ApplicationMasterProtocol} and + {@link ContainerManagementProtocol} directly, setting up and using an + instance cache is as follows: + 
      +   NMTokenCache nmTokenCache = new NMTokenCache();
+   ...
+   ApplicationMasterProtocol amPro = ClientRMProxy.createRMProxy(conf, ApplicationMasterProtocol.class);
+   ...
+   AllocateRequest allocateRequest = ...
+   ...
+   AllocateResponse allocateResponse = rmClient.allocate(allocateRequest);
+   for (NMToken token : allocateResponse.getNMTokens()) {
+     nmTokenCache.setToken(token.getNodeId().toString(), token.getToken());
+   }
+   ...
+   ContainerManagementProtocolProxy nmPro = ContainerManagementProtocolProxy(conf, nmTokenCache);
+   ...
+   nmPro.startContainer(container, containerContext);
+   ...
+
      +
      • +
    + It is also possible to mix the usage of a client ({@code AMRMClient} or + {@code NMClient}, or the async versions of them) with a protocol proxy + ({@code ContainerManagementProtocolProxy} or + {@code ApplicationMasterProtocol}).]]> +     +     + + + + + + + + + + + + + + The method to claim a resource with the SharedCacheManager. + The client uses a checksum to identify the resource and an + {@link ApplicationId} to identify which application will be using the + resource. +

    + +

    + The SharedCacheManager responds with whether or not the + resource exists in the cache. If the resource exists, a Path + to the resource in the shared cache is returned. If the resource does not + exist, null is returned instead. +

    + + @param applicationId ApplicationId of the application using the resource + @param resourceKey the key (i.e. checksum) that identifies the resource + @return Path to the resource, or null if it does not exist]]> +     +     + + + + + + + The method to release a resource with the SharedCacheManager. + This method is called once an application is no longer using a claimed + resource in the shared cache. The client uses a checksum to identify the + resource and an {@link ApplicationId} to identify which application is + releasing the resource. +

    + +

    + Note: This method is an optimization and the client is not required to call + it for correctness. +

    + + @param applicationId ApplicationId of the application releasing the + resource + @param resourceKey the key (i.e. checksum) that identifies the resource]]> +     +     + + + + + + + + + + +     + + + + + + + + + + + + + + + + Obtain a {@link YarnClientApplication} for a new application, + which in turn contains the {@link ApplicationSubmissionContext} and + {@link org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse} + objects. +

    + + @return {@link YarnClientApplication} built for a new application + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Submit a new application to YARN. It is a blocking call - it + will not return {@link ApplicationId} until the submitted application is + submitted successfully and accepted by the ResourceManager. +

    + +

    + Users should provide an {@link ApplicationId} as part of the parameter + {@link ApplicationSubmissionContext} when submitting a new application, + otherwise it will throw the {@link ApplicationIdNotProvidedException}. +

    + +

    This internally calls {@link ApplicationClientProtocol#submitApplication + (SubmitApplicationRequest)}, and after that, it internally invokes + {@link ApplicationClientProtocol#getApplicationReport + (GetApplicationReportRequest)} and waits till it can make sure that the + application gets properly submitted. If RM fails over or RM restart + happens before ResourceManager saves the application's state, + {@link ApplicationClientProtocol + #getApplicationReport(GetApplicationReportRequest)} will throw + the {@link ApplicationNotFoundException}. This API automatically resubmits + the application with the same {@link ApplicationSubmissionContext} when it + catches the {@link ApplicationNotFoundException}

    + + @param appContext + {@link ApplicationSubmissionContext} containing all the details + needed to submit a new application + @return {@link ApplicationId} of the accepted application + @throws YarnException + @throws IOException + @see #createApplication()]]> +     +     + + + + + + + Kill an application identified by given ID. +

    + + @param applicationId + {@link ApplicationId} of the application that needs to be killed + @throws YarnException + in case of errors or if YARN rejects the request due to + access-control restrictions. + @throws IOException + @see #getQueueAclsInfo()]]> +     +     + + + + + + + Get a report of the given Application. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + +

    + If the user does not have VIEW_APP access then the following + fields in the report will be set to stubbed values: +

      +
    • host - set to "N/A"
      • +
    • RPC port - set to -1
      • +
    • client token - set to "N/A"
      • +
    • diagnostics - set to "N/A"
      • +
    • tracking URL - set to "N/A"
      • +
    • original tracking URL - set to "N/A"
      • +
    • resource usage report - all values are -1
      • +
    + + @param appId + {@link ApplicationId} of the application that needs a report + @return application report + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The AMRM token is required for AM to RM scheduling operations. For + managed Application Masters Yarn takes care of injecting it. For unmanaged + Applications Masters, the token must be obtained via this method and set + in the {@link org.apache.hadoop.security.UserGroupInformation} of the + current user. +

    + The AMRM token will be returned only if all the following conditions are + met: +

      +
    • the requester is the owner of the ApplicationMaster
      • +
    • the application master is an unmanaged ApplicationMaster
      • +
    • the application master is in ACCEPTED state
      • +
    + Else this method returns NULL. + + @param appId {@link ApplicationId} of the application to get the AMRM token + @return the AMRM token if available + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get a report (ApplicationReport) of all Applications in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @return a list of reports of all running applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report (ApplicationReport) of Applications + matching the given application types in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @param applicationTypes + @return a list of reports of applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report (ApplicationReport) of Applications matching the given + application states in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @param applicationStates + @return a list of reports of applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + Get a report (ApplicationReport) of Applications matching the given + application types and application states in the cluster. +

    + +

    + If the user does not have VIEW_APP access for an application + then the corresponding report will be filtered as described in + {@link #getApplicationReport(ApplicationId)}. +

    + + @param applicationTypes + @param applicationStates + @return a list of reports of applications + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get metrics ({@link YarnClusterMetrics}) about the cluster. +

    + + @return cluster metrics + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of nodes ({@link NodeReport}) in the cluster. +

    + + @param states The {@link NodeState}s to filter on. If no filter states are + given, nodes in all states will be returned. + @return A list of node reports + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a delegation token so as to be able to talk to YARN using those tokens. + + @param renewer + Address of the renewer who can renew these tokens when needed by + securely talking to YARN. + @return a delegation token ({@link Token}) that can be used to + talk to YARN + @throws YarnException + @throws IOException]]> + + + + + + + + + Get information ({@link QueueInfo}) about a given queue. +

    + + @param queueName + Name of the queue whose information is needed + @return queue information + @throws YarnException + in case of errors or if YARN rejects the request due to + access-control restrictions. + @throws IOException]]> +     +     + + + + + + Get information ({@link QueueInfo}) about all queues, recursively if there + is a hierarchy +

    + + @return a list of queue-information for all queues + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get information ({@link QueueInfo}) about top level queues. +

    + + @return a list of queue-information for all the top-level queues + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get information ({@link QueueInfo}) about all the immediate children queues + of the given queue +

    + + @param parent + Name of the queue whose child-queues' information is needed + @return a list of queue-information for all queues who are direct children + of the given parent queue. + @throws YarnException + @throws IOException]]> +     +     + + + + + + Get information about acls for current user on all the + existing queues. +

    + + @return a list of queue acls ({@link QueueUserACLInfo}) for + current user + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given ApplicationAttempt. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param applicationAttemptId + {@link ApplicationAttemptId} of the application attempt that needs + a report + @return application attempt report + @throws YarnException + @throws ApplicationAttemptNotFoundException if application attempt + not found + @throws IOException]]> +     +     + + + + + + + Get a report of all (ApplicationAttempts) of Application in the cluster. +

    + + @param applicationId + @return a list of reports for all application attempts for specified + application. + @throws YarnException + @throws IOException]]> +     +     + + + + + + + Get a report of the given Container. +

    + +

    + In secure mode, YARN verifies access to the application, queue + etc. before accepting the request. +

    + + @param containerId + {@link ContainerId} of the container that needs a report + @return container report + @throws YarnException + @throws ContainerNotFoundException if container not found. + @throws IOException]]> +     +     + + + + + + + Get a report of all (Containers) of ApplicationAttempt in the cluster. +

    + + @param applicationAttemptId + @return a list of reports of all containers for specified application + attempts + @throws YarnException + @throws IOException]]> +     +     + + + + + + + + Attempts to move the given application to the given queue. +

    + + @param appId + Application to move. + @param queue + Queue to place it in to. + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The interface used by clients to submit a new reservation to the + {@code ResourceManager}. +

    + +

    + The client packages all details of its request in a + {@link ReservationSubmissionRequest} object. This contains information + about the amount of capacity, temporal constraints, and gang needs. + Furthermore, the reservation might be composed of multiple stages, with + ordering dependencies among them. +

    + +

    + In order to respond, a new admission control component in the + {@code ResourceManager} performs an analysis of the resources that have + been committed over the period of time the user is requesting, verify that + the user requests can be fulfilled, and that it respect a sharing policy + (e.g., {@code CapacityOverTimePolicy}). Once it has positively determined + that the ReservationRequest is satisfiable the {@code ResourceManager} + answers with a {@link ReservationSubmissionResponse} that includes a + {@link ReservationId}. Upon failure to find a valid allocation the response + is an exception with the message detailing the reason of failure. +

    + +

    + The semantics guarantees that the {@link ReservationId} returned, + corresponds to a valid reservation existing in the time-range request by + the user. The amount of capacity dedicated to such reservation can vary + overtime, depending of the allocation that has been determined. But it is + guaranteed to satisfy all the constraint expressed by the user in the + {@link ReservationDefinition} +

    + + @param request request to submit a new Reservation + @return response contains the {@link ReservationId} on accepting the + submission + @throws YarnException if the reservation cannot be created successfully + @throws IOException]]> +     +     + + + + + + + The interface used by clients to update an existing Reservation. This is + referred to as a re-negotiation process, in which a user that has + previously submitted a Reservation. +

    + +

    + The allocation is attempted by virtually substituting all previous + allocations related to this Reservation with new ones, that satisfy the new + {@link ReservationDefinition}. Upon success the previous allocation is + atomically substituted by the new one, and on failure (i.e., if the system + cannot find a valid allocation for the updated request), the previous + allocation remains valid. +

    + + @param request to update an existing Reservation (the + {@link ReservationUpdateRequest} should refer to an existing valid + {@link ReservationId}) + @return response empty on successfully updating the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + updated successfully + @throws IOException]]> +     +     + + + + + + + The interface used by clients to remove an existing Reservation. +

    + + @param request to remove an existing Reservation (the + {@link ReservationDeleteRequest} should refer to an existing valid + {@link ReservationId}) + @return response empty on successfully deleting the existing reservation + @throws YarnException if the request is invalid or reservation cannot be + deleted successfully + @throws IOException]]> +     +     + + + + + + The interface used by client to get node to labels mappings in existing cluster +

    + + @return node to labels mappings + @throws YarnException + @throws IOException]]> +     +     + + + + + + The interface used by client to get labels to nodes mapping + in existing cluster +

    + + @return node to labels mappings + @throws YarnException + @throws IOException]]> +     +     + + + + + + + The interface used by client to get labels to nodes mapping + for specified labels in existing cluster +

    + + @param labels labels for which labels to nodes mapping has to be retrieved + @return labels to nodes mappings for specific labels + @throws YarnException + @throws IOException]]> +     +     + + + + + + The interface used by client to get node labels in the cluster +

    + + @return cluster node labels collection + @throws YarnException + @throws IOException]]> +     +     +     + + + + + + + + + + + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + allocate + @param req Resource request]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + check to return true for each 1000 ms. + See also {@link #waitFor(com.google.common.base.Supplier, int)} + and {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check]]> + + + + + + + + check to return true for each + checkEveryMillis ms. + See also {@link #waitFor(com.google.common.base.Supplier, int, int)} + @param check user defined checker + @param checkEveryMillis interval to call check]]> + + + + + + + + + check to return true for each + checkEveryMillis ms. In the main loop, this method will log + the message "waiting in main loop" for each logInterval times + iteration to confirm the thread is alive. + @param check user defined checker + @param checkEveryMillis interval to call check + @param logInterval interval to log for each]]> + + + + + + + + + + AMRMClientAsync handles communication with the ResourceManager + and provides asynchronous updates on events such as container allocations and + completions. It contains a thread that sends periodic heartbeats to the + ResourceManager. + + It should be used by implementing a CallbackHandler: + 
    + {@code
+ class MyCallbackHandler implements AMRMClientAsync.CallbackHandler {
+   public void onContainersAllocated(List containers) {
+     [run tasks on the containers]
+   }
+
+   public void onContainersCompleted(List statuses) {
+     [update progress, check whether app is done]
+   }
+
+   public void onNodesUpdated(List updated) {}
+
+   public void onReboot() {}
+ }
+ }
+
    + + The client's lifecycle should be managed similarly to the following: + + 
    + {@code
+ AMRMClientAsync asyncClient =
+     createAMRMClientAsync(appAttId, 1000, new MyCallbackhandler());
+ asyncClient.init(conf);
+ asyncClient.start();
+ RegisterApplicationMasterResponse response = asyncClient
+    .registerApplicationMaster(appMasterHostname, appMasterRpcPort,
+       appMasterTrackingUrl);
+ asyncClient.addContainerRequest(containerRequest);
+ [... wait for application to complete]
+ asyncClient.unregisterApplicationMaster(status, appMsg, trackingUrl);
+ asyncClient.stop();
+ }
+
    ]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + NMClientAsync handles communication with all the NodeManagers + and provides asynchronous updates on getting responses from them. It + maintains a thread pool to communicate with individual NMs where a number of + worker threads process requests to NMs by using {@link NMClientImpl}. The max + size of the thread pool is configurable through + {@link YarnConfiguration#NM_CLIENT_ASYNC_THREAD_POOL_MAX_SIZE}. + + It should be used in conjunction with a CallbackHandler. For example + + 
    + {@code
+ class MyCallbackHandler implements NMClientAsync.CallbackHandler {
+   public void onContainerStarted(ContainerId containerId,
+       Map allServiceResponse) {
+     [post process after the container is started, process the response]
+   }
+
+   public void onContainerStatusReceived(ContainerId containerId,
+       ContainerStatus containerStatus) {
+     [make use of the status of the container]
+   }
+
+   public void onContainerStopped(ContainerId containerId) {
+     [post process after the container is stopped]
+   }
+
+   public void onStartContainerError(
+       ContainerId containerId, Throwable t) {
+     [handle the raised exception]
+   }
+
+   public void onGetContainerStatusError(
+       ContainerId containerId, Throwable t) {
+     [handle the raised exception]
+   }
+
+   public void onStopContainerError(
+       ContainerId containerId, Throwable t) {
+     [handle the raised exception]
+   }
+ }
+ }
+
    + + The client's life-cycle should be managed like the following: + + 
    + {@code
+ NMClientAsync asyncClient =
+     NMClientAsync.createNMClientAsync(new MyCallbackhandler());
+ asyncClient.init(conf);
+ asyncClient.start();
+ asyncClient.startContainer(container, containerLaunchContext);
+ [... wait for container being started]
+ asyncClient.getContainerStatus(container.getId(), container.getNodeId(),
+     container.getContainerToken());
+ [... handle the status in the callback instance]
+ asyncClient.stopContainer(container.getId(), container.getNodeId(),
+     container.getContainerToken());
+ [... wait for container being stopped]
+ asyncClient.stop();
+ }
+
    ]]> +     +     + + + + + + + + NodeManager responds to indicate its + acceptance of the starting container request + @param containerId the Id of the container + @param allServiceResponse a Map between the auxiliary service names and + their outputs]]> + + + + + + + NodeManager responds with the status + of the container + @param containerId the Id of the container + @param containerStatus the status of the container]]> + + + + + + NodeManager responds to indicate the + container is stopped. + @param containerId the Id of the container]]> + + + + + + + + + + + + + + + + + + + + + + + + + + The callback interface needs to be implemented by {@link NMClientAsync} + users. The APIs are called when responses from NodeManager are + available. +

    + +

    + Once a callback happens, the users can chose to act on it in blocking or + non-blocking manner. If the action on callback is done in a blocking + manner, some of the threads performing requests on NodeManagers may get + blocked depending on how many threads in the pool are busy. +

    + +

    + The implementation of the callback function should not throw the + unexpected exception. Otherwise, {@link NMClientAsync} will just + catch, log and then ignore it. +

    ]]> +     +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Common_2.6.0.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Common_2.6.0.xml new file mode 100644 index 00000000000..9e37e8a059c --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Common_2.6.0.xml @@ -0,0 +1,2870 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Type of proxy. + @return Proxy to the ResourceManager for the specified client protocol. + @throws IOException]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Type information of the proxy + @return Proxy to the RM + @throws IOException]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Send the information of a number of conceptual entities to the timeline + server. It is a blocking API. The method will not return until it gets the + response from the timeline server. +

    + + @param entities + the collection of {@link TimelineEntity} + @return the error information if the sent entities are not correctly stored + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Send the information of a domain to the timeline server. It is a + blocking API. The method will not return until it gets the response from + the timeline server. +

    + + @param domain + an {@link TimelineDomain} object + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Get a delegation token so as to be able to talk to the timeline server in a + secure way. +

    + + @param renewer + Address of the renewer who can renew these tokens when needed by + securely talking to the timeline server + @return a delegation token ({@link Token}) that can be used to talk to the + timeline server + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Renew a timeline delegation token. +

    + + @param timelineDT + the delegation token to renew + @return the new expiration time + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Cancel a timeline delegation token. +

    + + @param timelineDT + the delegation token to cancel + @throws IOException + @throws YarnException]]> +     +     + + + +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + parameterized event of type T]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + labels map]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + labels map]]> + + + + + + + + + + + + + + + labels map]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Host can have multiple Nodes]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + label]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The object type on which this state machine operates. + @param The state of the entity. + @param The external eventType to be handled. + @param The event object.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Common_2.7.2.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Common_2.7.2.xml new file mode 100644 index 00000000000..f8773363f16 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Common_2.7.2.xml @@ -0,0 +1,3323 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Type of proxy. + @return Proxy to the ResourceManager for the specified client protocol. + @throws IOException]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Type information of the proxy + @return Proxy to the RM + @throws IOException]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Send the information of a number of conceptual entities to the timeline + server. It is a blocking API. The method will not return until it gets the + response from the timeline server. +

    + + @param entities + the collection of {@link TimelineEntity} + @return the error information if the sent entities are not correctly stored + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Send the information of a domain to the timeline server. It is a + blocking API. The method will not return until it gets the response from + the timeline server. +

    + + @param domain + an {@link TimelineDomain} object + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Get a delegation token so as to be able to talk to the timeline server in a + secure way. +

    + + @param renewer + Address of the renewer who can renew these tokens when needed by + securely talking to the timeline server + @return a delegation token ({@link Token}) that can be used to talk to the + timeline server + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Renew a timeline delegation token. +

    + + @param timelineDT + the delegation token to renew + @return the new expiration time + @throws IOException + @throws YarnException]]> +     +     + + + + + + + Cancel a timeline delegation token. +

    + + @param timelineDT + the delegation token to cancel + @throws IOException + @throws YarnException]]> +     +     + + + +     + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + parameterized event of type T]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + } labels map]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + } labels map]]> + + + + + + + + + + + } labels map]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Host can have multiple Nodes]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + } label]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + InputStream to be checksumed + @return the message digest of the input stream + @throws IOException]]> + + + + + + + + + + + + SharedCacheChecksum object based on the configurable + algorithm implementation + (see yarn.sharedcache.checksum.algo.impl) + + @return SharedCacheChecksum object]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + The object type on which this state machine operates. + @param The state of the entity. + @param The external eventType to be handled. + @param The event object.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Server_Common_2.6.0.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Server_Common_2.6.0.xml new file mode 100644 index 00000000000..094962fc8ff --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Server_Common_2.6.0.xml @@ -0,0 +1,2059 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Type of proxy. + @return Proxy to the ResourceManager for the specified server protocol. + @throws IOException]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + true if the node is healthy, else false]]> + + + + + diagnostic health report of the node. + @return diagnostic health report of the node]]> + + + + + last timestamp at which the health report was received. + @return last timestamp at which the health report was received]]> + + + + NodeHealthStatus is a summary of the health status of the + node.

    + +

    It includes information such as: +

      +
    • + An indicator of whether the node is healthy, as determined by the + health-check script. +
      • +
    • The previous time at which the health status was reported.
      • +
    • A diagnostic report on the health status.
      • +
    +

    + + @see NodeReport + @see ApplicationClientProtocol#getClusterNodes(org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + true if the iteration has more elements.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Server_Common_2.7.2.xml b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Server_Common_2.7.2.xml new file mode 100644 index 00000000000..1a1d88bc668 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Apache_Hadoop_YARN_Server_Common_2.7.2.xml @@ -0,0 +1,1801 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Type of proxy. + @return Proxy to the ResourceManager for the specified server protocol. + @throws IOException]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + true if the node is healthy, else false]]> + + + + + diagnostic health report of the node. + @return diagnostic health report of the node]]> + + + + + last timestamp at which the health report was received. + @return last timestamp at which the health report was received]]> + + + + + It includes information such as: +
      +
    • + An indicator of whether the node is healthy, as determined by the + health-check script. +
      • +
    • The previous time at which the health status was reported.
      • +
    • A diagnostic report on the health status.
      • +
    + + @see NodeReport + @see ApplicationClientProtocol#getClusterNodes(org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesRequest)]]> +     +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + true if the iteration has more elements.]]> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +     diff --git a/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Null.java b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Null.java new file mode 100644 index 00000000000..7b00145ced7 --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/dev-support/jdiff/Null.java @@ -0,0 +1,20 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +public class Null { + public Null() { } +} diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/pom.xml index 9a08a7b00cc..41df09eab69 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/pom.xml @@ -30,6 +30,8 @@ ${project.parent.basedir} + true + ../dev-support diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml index ca9086fbfae..454993e1f2f 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/pom.xml @@ -27,6 +27,8 @@ ${project.parent.basedir} + true + ../dev-support diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml index 01e9cd9e48b..3d74ac0e75b 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml @@ -30,6 +30,8 @@ ${project.parent.basedir} + true + ../dev-support diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/pom.xml index 14dcc7f438a..9ccb7830899 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/pom.xml @@ -30,6 +30,8 @@ ${project.parent.parent.basedir} + true + ../../dev-support diff --git a/hadoop-yarn-project/hadoop-yarn/pom.xml b/hadoop-yarn-project/hadoop-yarn/pom.xml index 82475e1a0e2..83cc88962d5 100644 --- a/hadoop-yarn-project/hadoop-yarn/pom.xml +++ b/hadoop-yarn-project/hadoop-yarn/pom.xml @@ -29,6 +29,9 @@ true 600000 ${basedir} + + + dev-support ${basedir}/../../../hadoop-common-project/hadoop-common/target @@ -53,6 +56,7 @@ conf/slaves conf/container-executor.cfg + dev-support/jdiff/** @@ -98,6 +102,131 @@ + + + docs + + false + + + 2.7.2 + -unstable + + 512m + + + + + org.apache.maven.plugins + maven-javadoc-plugin + + + + javadoc + + prepare-package + + + + + org.apache.maven.plugins + maven-dependency-plugin + + + site + prepare-package + + copy + + + + + jdiff + jdiff + ${jdiff.version} + false + ${project.build.directory} + jdiff.jar + + + org.apache.hadoop + hadoop-annotations + ${project.version} + false + ${project.build.directory} + hadoop-annotations.jar + + + xerces + xercesImpl + ${xerces.version.jdiff} + false + ${project.build.directory} + xerces.jar + + + + + + + + org.apache.maven.plugins + maven-antrun-plugin + + + site + prepare-package + + run + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +