YARN-29. Add a yarn-client module. (Contributed by Vinod Kumar Vavilapalli)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1377781 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Siddharth Seth 2012-08-27 18:27:18 +00:00
parent 735046ebec
commit 10e704c50b
10 changed files with 613 additions and 106 deletions

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@ -118,6 +118,12 @@
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-client</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-mapreduce-client-core</artifactId>

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@ -33,6 +33,8 @@ Release 2.1.0-alpha - Unreleased
IMPROVEMENTS
YARN-29. Add a yarn-client module. (Vinod Kumar Vavilapalli via sseth)
BUG FIXES
YARN-12. Fix findbugs warnings in FairScheduler. (Junping Du via acmurthy)

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@ -41,6 +41,10 @@
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-common</artifactId>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-client</artifactId>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-server-nodemanager</artifactId>

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@ -22,7 +22,6 @@ import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@ -44,20 +43,8 @@ import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.yarn.api.ApplicationConstants;
import org.apache.hadoop.yarn.api.ClientRMProtocol;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterMetricsRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterMetricsResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoResponse;
import org.apache.hadoop.yarn.api.protocolrecords.KillApplicationRequest;
import org.apache.hadoop.yarn.api.protocolrecords.SubmitApplicationRequest;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
@ -73,12 +60,12 @@ import org.apache.hadoop.yarn.api.records.QueueInfo;
import org.apache.hadoop.yarn.api.records.QueueUserACLInfo;
import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.api.records.YarnApplicationState;
import org.apache.hadoop.yarn.api.records.YarnClusterMetrics;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnRemoteException;
import org.apache.hadoop.yarn.ipc.YarnRPC;
import org.apache.hadoop.yarn.util.ConverterUtils;
import org.apache.hadoop.yarn.util.Records;
import org.hadoop.yarn.client.YarnClientImpl;
/**
* Client for Distributed Shell application submission to YARN.
@ -113,19 +100,13 @@ import org.apache.hadoop.yarn.util.Records;
*/
@InterfaceAudience.Public
@InterfaceStability.Unstable
public class Client {
public class Client extends YarnClientImpl {
private static final Log LOG = LogFactory.getLog(Client.class);
// Configuration
private Configuration conf;
// RPC to communicate to RM
private YarnRPC rpc;
// Handle to talk to the Resource Manager/Applications Manager
private ClientRMProtocol applicationsManager;
// Application master specific info to register a new Application with RM/ASM
private String appName = "";
// App master priority
@ -196,9 +177,9 @@ public class Client {
/**
*/
public Client(Configuration conf) throws Exception {
// Set up the configuration and RPC
super();
this.conf = conf;
rpc = YarnRPC.create(conf);
init(conf);
}
/**
@ -328,22 +309,17 @@ public class Client {
* @throws IOException
*/
public boolean run() throws IOException {
LOG.info("Starting Client");
// Connect to ResourceManager
connectToASM();
assert(applicationsManager != null);
LOG.info("Running Client");
start();
// Use ClientRMProtocol handle to general cluster information
GetClusterMetricsRequest clusterMetricsReq = Records.newRecord(GetClusterMetricsRequest.class);
GetClusterMetricsResponse clusterMetricsResp = applicationsManager.getClusterMetrics(clusterMetricsReq);
YarnClusterMetrics clusterMetrics = super.getYarnClusterMetrics();
LOG.info("Got Cluster metric info from ASM"
+ ", numNodeManagers=" + clusterMetricsResp.getClusterMetrics().getNumNodeManagers());
+ ", numNodeManagers=" + clusterMetrics.getNumNodeManagers());
GetClusterNodesRequest clusterNodesReq = Records.newRecord(GetClusterNodesRequest.class);
GetClusterNodesResponse clusterNodesResp = applicationsManager.getClusterNodes(clusterNodesReq);
List<NodeReport> clusterNodeReports = super.getNodeReports();
LOG.info("Got Cluster node info from ASM");
for (NodeReport node : clusterNodesResp.getNodeReports()) {
for (NodeReport node : clusterNodeReports) {
LOG.info("Got node report from ASM for"
+ ", nodeId=" + node.getNodeId()
+ ", nodeAddress" + node.getHttpAddress()
@ -352,10 +328,7 @@ public class Client {
+ ", nodeHealthStatus" + node.getNodeHealthStatus());
}
GetQueueInfoRequest queueInfoReq = Records.newRecord(GetQueueInfoRequest.class);
queueInfoReq.setQueueName(this.amQueue);
GetQueueInfoResponse queueInfoResp = applicationsManager.getQueueInfo(queueInfoReq);
QueueInfo queueInfo = queueInfoResp.getQueueInfo();
QueueInfo queueInfo = super.getQueueInfo(this.amQueue);
LOG.info("Queue info"
+ ", queueName=" + queueInfo.getQueueName()
+ ", queueCurrentCapacity=" + queueInfo.getCurrentCapacity()
@ -363,9 +336,7 @@ public class Client {
+ ", queueApplicationCount=" + queueInfo.getApplications().size()
+ ", queueChildQueueCount=" + queueInfo.getChildQueues().size());
GetQueueUserAclsInfoRequest queueUserAclsReq = Records.newRecord(GetQueueUserAclsInfoRequest.class);
GetQueueUserAclsInfoResponse queueUserAclsResp = applicationsManager.getQueueUserAcls(queueUserAclsReq);
List<QueueUserACLInfo> listAclInfo = queueUserAclsResp.getUserAclsInfoList();
List<QueueUserACLInfo> listAclInfo = super.getQueueAclsInfo();
for (QueueUserACLInfo aclInfo : listAclInfo) {
for (QueueACL userAcl : aclInfo.getUserAcls()) {
LOG.info("User ACL Info for Queue"
@ -375,7 +346,7 @@ public class Client {
}
// Get a new application id
GetNewApplicationResponse newApp = getApplication();
GetNewApplicationResponse newApp = super.getNewApplication();
ApplicationId appId = newApp.getApplicationId();
// TODO get min/max resource capabilities from RM and change memory ask if needed
@ -590,16 +561,12 @@ public class Client {
// Set the queue to which this application is to be submitted in the RM
appContext.setQueue(amQueue);
// Create the request to send to the applications manager
SubmitApplicationRequest appRequest = Records.newRecord(SubmitApplicationRequest.class);
appRequest.setApplicationSubmissionContext(appContext);
// Submit the application to the applications manager
// SubmitApplicationResponse submitResp = applicationsManager.submitApplication(appRequest);
// Ignore the response as either a valid response object is returned on success
// or an exception thrown to denote some form of a failure
LOG.info("Submitting application to ASM");
applicationsManager.submitApplication(appRequest);
super.submitApplication(appContext);
// TODO
// Try submitting the same request again
@ -629,10 +596,7 @@ public class Client {
}
// Get application report for the appId we are interested in
GetApplicationReportRequest reportRequest = Records.newRecord(GetApplicationReportRequest.class);
reportRequest.setApplicationId(appId);
GetApplicationReportResponse reportResponse = applicationsManager.getApplicationReport(reportRequest);
ApplicationReport report = reportResponse.getApplicationReport();
ApplicationReport report = super.getApplicationReport(appId);
LOG.info("Got application report from ASM for"
+ ", appId=" + appId.getId()
@ -671,7 +635,7 @@ public class Client {
if (System.currentTimeMillis() > (clientStartTime + clientTimeout)) {
LOG.info("Reached client specified timeout for application. Killing application");
killApplication(appId);
forceKillApplication(appId);
return false;
}
}
@ -683,61 +647,14 @@ public class Client {
* @param appId Application Id to be killed.
* @throws YarnRemoteException
*/
private void killApplication(ApplicationId appId) throws YarnRemoteException {
KillApplicationRequest request = Records.newRecord(KillApplicationRequest.class);
private void forceKillApplication(ApplicationId appId) throws YarnRemoteException {
// TODO clarify whether multiple jobs with the same app id can be submitted and be running at
// the same time.
// If yes, can we kill a particular attempt only?
request.setApplicationId(appId);
// KillApplicationResponse response = applicationsManager.forceKillApplication(request);
// Response can be ignored as it is non-null on success or
// throws an exception in case of failures
applicationsManager.forceKillApplication(request);
}
/**
* Connect to the Resource Manager/Applications Manager
* @return Handle to communicate with the ASM
* @throws IOException
*/
private void connectToASM() throws IOException {
/*
UserGroupInformation user = UserGroupInformation.getCurrentUser();
applicationsManager = user.doAs(new PrivilegedAction<ClientRMProtocol>() {
public ClientRMProtocol run() {
InetSocketAddress rmAddress = NetUtils.createSocketAddr(conf.get(
YarnConfiguration.RM_SCHEDULER_ADDRESS,
YarnConfiguration.DEFAULT_RM_SCHEDULER_ADDRESS));
LOG.info("Connecting to ResourceManager at " + rmAddress);
Configuration appsManagerServerConf = new Configuration(conf);
appsManagerServerConf.setClass(YarnConfiguration.YARN_SECURITY_INFO,
ClientRMSecurityInfo.class, SecurityInfo.class);
ClientRMProtocol asm = ((ClientRMProtocol) rpc.getProxy(ClientRMProtocol.class, rmAddress, appsManagerServerConf));
return asm;
}
});
*/
YarnConfiguration yarnConf = new YarnConfiguration(conf);
InetSocketAddress rmAddress = yarnConf.getSocketAddr(
YarnConfiguration.RM_ADDRESS,
YarnConfiguration.DEFAULT_RM_ADDRESS,
YarnConfiguration.DEFAULT_RM_PORT);
LOG.info("Connecting to ResourceManager at " + rmAddress);
applicationsManager = ((ClientRMProtocol) rpc.getProxy(
ClientRMProtocol.class, rmAddress, conf));
}
/**
* Get a new application from the ASM
* @return New Application
* @throws YarnRemoteException
*/
private GetNewApplicationResponse getApplication() throws YarnRemoteException {
GetNewApplicationRequest request = Records.newRecord(GetNewApplicationRequest.class);
GetNewApplicationResponse response = applicationsManager.getNewApplication(request);
LOG.info("Got new application id=" + response.getApplicationId());
return response;
super.killApplication(appId);
}
private static String getTestRuntimeClasspath() {

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@ -0,0 +1,19 @@
<!--
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.
-->
<FindBugsFilter>
</FindBugsFilter>

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@ -0,0 +1,37 @@
<?xml version="1.0"?>
<!--
Licensed 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. See accompanying LICENSE file.
-->
<project xmlns:pom="http://maven.apache.org/POM/4.0.0">
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>hadoop-yarn</artifactId>
<groupId>org.apache.hadoop</groupId>
<version>3.0.0-SNAPSHOT</version>
</parent>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-client</artifactId>
<version>3.0.0-SNAPSHOT</version>
<name>hadoop-yarn-client</name>
<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-api</artifactId>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-yarn-common</artifactId>
</dependency>
</dependencies>
</project>

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@ -0,0 +1,234 @@
/**
* 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.
*/
package org.hadoop.yarn.client;
import java.util.List;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
import org.apache.hadoop.yarn.api.records.DelegationToken;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.QueueInfo;
import org.apache.hadoop.yarn.api.records.QueueUserACLInfo;
import org.apache.hadoop.yarn.api.records.YarnClusterMetrics;
import org.apache.hadoop.yarn.exceptions.YarnRemoteException;
import org.apache.hadoop.yarn.service.Service;
@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface YarnClient extends Service {
/**
* <p>
* Obtain a new {@link ApplicationId} for submitting new applications.
* </p>
*
* <p>
* Returns a response which contains {@link ApplicationId} that can be used to
* submit a new application. See
* {@link #submitApplication(ApplicationSubmissionContext)}.
* </p>
*
* <p>
* See {@link GetNewApplicationResponse} for other information that is
* returned.
* </p>
*
* @return response containing the new <code>ApplicationId</code> to be used
* to submit an application
* @throws YarnRemoteException
*/
GetNewApplicationResponse getNewApplication() throws YarnRemoteException;
/**
* <p>
* Submit a new application to <code>YARN.</code>
* </p>
*
* @param appContext
* {@link ApplicationSubmissionContext} containing all the details
* needed to submit a new application
* @return {@link ApplicationId} of the accepted application
* @throws YarnRemoteException
* @see #getNewApplication()
*/
ApplicationId submitApplication(ApplicationSubmissionContext appContext)
throws YarnRemoteException;
/**
* <p>
* Kill an application identified by given ID.
* </p>
*
* @param applicationId
* {@link ApplicationId} of the application that needs to be killed
* @throws YarnRemoteException
* in case of errors or if YARN rejects the request due to
* access-control restrictions.
* @see #getQueueAclsInfo()
*/
void killApplication(ApplicationId applicationId) throws YarnRemoteException;
/**
* <p>
* Get a report of the given Application.
* </p>
*
* <p>
* In secure mode, <code>YARN</code> verifies access to the application, queue
* etc. before accepting the request.
* </p>
*
* <p>
* If the user does not have <code>VIEW_APP</code> access then the following
* fields in the report will be set to stubbed values:
* <ul>
* <li>host - set to "N/A"</li>
* <li>RPC port - set to -1</li>
* <li>client token - set to "N/A"</li>
* <li>diagnostics - set to "N/A"</li>
* <li>tracking URL - set to "N/A"</li>
* <li>original tracking URL - set to "N/A"</li>
* <li>resource usage report - all values are -1</li>
* </ul>
* </p>
*
* @param appId
* {@link ApplicationId} of the application that needs a report
* @return application report
* @throws YarnRemoteException
*/
ApplicationReport getApplicationReport(ApplicationId appId)
throws YarnRemoteException;
/**
* <p>
* Get a report (ApplicationReport) of all Applications in the cluster.
* </p>
*
* <p>
* If the user does not have <code>VIEW_APP</code> access for an application
* then the corresponding report will be filtered as described in
* {@link #getApplicationReport(ApplicationId)}.
* </p>
*
* @return a list of reports of all running applications
* @throws YarnRemoteException
*/
List<ApplicationReport> getApplicationList() throws YarnRemoteException;
/**
* <p>
* Get metrics ({@link YarnClusterMetrics}) about the cluster.
* </p>
*
* @return cluster metrics
* @throws YarnRemoteException
*/
YarnClusterMetrics getYarnClusterMetrics() throws YarnRemoteException;
/**
* <p>
* Get a report of all nodes ({@link NodeReport}) in the cluster.
* </p>
*
* @return A list of report of all nodes
* @throws YarnRemoteException
*/
List<NodeReport> getNodeReports() throws YarnRemoteException;
/**
* <p>
* 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 DelegationToken}) that can be used to
* talk to YARN
* @throws YarnRemoteException
*/
DelegationToken getRMDelegationToken(Text renewer) throws YarnRemoteException;
/**
* <p>
* Get information ({@link QueueInfo}) about a given <em>queue</em>.
* </p>
*
* @param queueName
* Name of the queue whose information is needed
* @return queue information
* @throws YarnRemoteException
* in case of errors or if YARN rejects the request due to
* access-control restrictions.
*/
QueueInfo getQueueInfo(String queueName) throws YarnRemoteException;
/**
* <p>
* Get information ({@link QueueInfo}) about all queues, recursively if there
* is a hierarchy
* </p>
*
* @return a list of queue-information for all queues
* @throws YarnRemoteException
*/
List<QueueInfo> getAllQueues() throws YarnRemoteException;
/**
* <p>
* Get information ({@link QueueInfo}) about top level queues.
* </p>
*
* @return a list of queue-information for all the top-level queues
* @throws YarnRemoteException
*/
List<QueueInfo> getRootQueueInfos() throws YarnRemoteException;
/**
* <p>
* Get information ({@link QueueInfo}) about all the immediate children queues
* of the given queue
* </p>
*
* @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 YarnRemoteException
*/
List<QueueInfo> getChildQueueInfos(String parent) throws YarnRemoteException;
/**
* <p>
* Get information about <em>acls</em> for <em>current user</em> on all the
* existing queues.
* </p>
*
* @return a list of queue acls ({@link QueueUserACLInfo}) for
* <em>current user</em>
* @throws YarnRemoteException
*/
List<QueueUserACLInfo> getQueueAclsInfo() throws YarnRemoteException;
}

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@ -0,0 +1,258 @@
/**
* 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.
*/
package org.hadoop.yarn.client;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.yarn.api.ClientRMProtocol;
import org.apache.hadoop.yarn.api.protocolrecords.GetAllApplicationsRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetAllApplicationsResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetApplicationReportResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterMetricsRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterMetricsResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetClusterNodesResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetDelegationTokenRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetDelegationTokenResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetNewApplicationResponse;
import org.apache.hadoop.yarn.api.protocolrecords.GetQueueInfoRequest;
import org.apache.hadoop.yarn.api.protocolrecords.GetQueueUserAclsInfoRequest;
import org.apache.hadoop.yarn.api.protocolrecords.KillApplicationRequest;
import org.apache.hadoop.yarn.api.protocolrecords.SubmitApplicationRequest;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ApplicationReport;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
import org.apache.hadoop.yarn.api.records.DelegationToken;
import org.apache.hadoop.yarn.api.records.NodeReport;
import org.apache.hadoop.yarn.api.records.QueueInfo;
import org.apache.hadoop.yarn.api.records.QueueUserACLInfo;
import org.apache.hadoop.yarn.api.records.YarnClusterMetrics;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.exceptions.YarnRemoteException;
import org.apache.hadoop.yarn.ipc.YarnRPC;
import org.apache.hadoop.yarn.service.AbstractService;
import org.apache.hadoop.yarn.util.Records;
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class YarnClientImpl extends AbstractService implements YarnClient {
private static final Log LOG = LogFactory.getLog(YarnClientImpl.class);
protected ClientRMProtocol rmClient;
protected InetSocketAddress rmAddress;
private static final String ROOT = "root";
public YarnClientImpl() {
super(YarnClientImpl.class.getName());
}
private static InetSocketAddress getRmAddress(Configuration conf) {
return conf.getSocketAddr(YarnConfiguration.RM_ADDRESS,
YarnConfiguration.DEFAULT_RM_ADDRESS, YarnConfiguration.DEFAULT_RM_PORT);
}
@Override
public synchronized void init(Configuration conf) {
this.rmAddress = getRmAddress(conf);
super.init(conf);
}
@Override
public synchronized void start() {
YarnRPC rpc = YarnRPC.create(getConfig());
this.rmClient =
(ClientRMProtocol) rpc.getProxy(ClientRMProtocol.class, rmAddress,
getConfig());
LOG.debug("Connecting to ResourceManager at " + rmAddress);
super.start();
}
@Override
public synchronized void stop() {
RPC.stopProxy(this.rmClient);
super.stop();
}
@Override
public GetNewApplicationResponse getNewApplication()
throws YarnRemoteException {
GetNewApplicationRequest request =
Records.newRecord(GetNewApplicationRequest.class);
return rmClient.getNewApplication(request);
}
@Override
public ApplicationId
submitApplication(ApplicationSubmissionContext appContext)
throws YarnRemoteException {
ApplicationId applicationId = appContext.getApplicationId();
appContext.setApplicationId(applicationId);
SubmitApplicationRequest request =
Records.newRecord(SubmitApplicationRequest.class);
request.setApplicationSubmissionContext(appContext);
rmClient.submitApplication(request);
LOG.info("Submitted application " + applicationId + " to ResourceManager"
+ " at " + rmAddress);
return applicationId;
}
@Override
public void killApplication(ApplicationId applicationId)
throws YarnRemoteException {
LOG.info("Killing application " + applicationId);
KillApplicationRequest request =
Records.newRecord(KillApplicationRequest.class);
request.setApplicationId(applicationId);
rmClient.forceKillApplication(request);
}
@Override
public ApplicationReport getApplicationReport(ApplicationId appId)
throws YarnRemoteException {
GetApplicationReportRequest request =
Records.newRecord(GetApplicationReportRequest.class);
request.setApplicationId(appId);
GetApplicationReportResponse response =
rmClient.getApplicationReport(request);
return response.getApplicationReport();
}
@Override
public List<ApplicationReport> getApplicationList()
throws YarnRemoteException {
GetAllApplicationsRequest request =
Records.newRecord(GetAllApplicationsRequest.class);
GetAllApplicationsResponse response = rmClient.getAllApplications(request);
return response.getApplicationList();
}
@Override
public YarnClusterMetrics getYarnClusterMetrics() throws YarnRemoteException {
GetClusterMetricsRequest request =
Records.newRecord(GetClusterMetricsRequest.class);
GetClusterMetricsResponse response = rmClient.getClusterMetrics(request);
return response.getClusterMetrics();
}
@Override
public List<NodeReport> getNodeReports() throws YarnRemoteException {
GetClusterNodesRequest request =
Records.newRecord(GetClusterNodesRequest.class);
GetClusterNodesResponse response = rmClient.getClusterNodes(request);
return response.getNodeReports();
}
@Override
public DelegationToken getRMDelegationToken(Text renewer)
throws YarnRemoteException {
/* get the token from RM */
GetDelegationTokenRequest rmDTRequest =
Records.newRecord(GetDelegationTokenRequest.class);
rmDTRequest.setRenewer(renewer.toString());
GetDelegationTokenResponse response =
rmClient.getDelegationToken(rmDTRequest);
return response.getRMDelegationToken();
}
private GetQueueInfoRequest
getQueueInfoRequest(String queueName, boolean includeApplications,
boolean includeChildQueues, boolean recursive) {
GetQueueInfoRequest request = Records.newRecord(GetQueueInfoRequest.class);
request.setQueueName(queueName);
request.setIncludeApplications(includeApplications);
request.setIncludeChildQueues(includeChildQueues);
request.setRecursive(recursive);
return request;
}
@Override
public QueueInfo getQueueInfo(String queueName) throws YarnRemoteException {
GetQueueInfoRequest request =
getQueueInfoRequest(queueName, true, false, false);
Records.newRecord(GetQueueInfoRequest.class);
return rmClient.getQueueInfo(request).getQueueInfo();
}
@Override
public List<QueueUserACLInfo> getQueueAclsInfo() throws YarnRemoteException {
GetQueueUserAclsInfoRequest request =
Records.newRecord(GetQueueUserAclsInfoRequest.class);
return rmClient.getQueueUserAcls(request).getUserAclsInfoList();
}
@Override
public List<QueueInfo> getAllQueues() throws YarnRemoteException {
List<QueueInfo> queues = new ArrayList<QueueInfo>();
QueueInfo rootQueue =
rmClient.getQueueInfo(getQueueInfoRequest(ROOT, false, true, true))
.getQueueInfo();
getChildQueues(rootQueue, queues, true);
return queues;
}
@Override
public List<QueueInfo> getRootQueueInfos() throws YarnRemoteException {
List<QueueInfo> queues = new ArrayList<QueueInfo>();
QueueInfo rootQueue =
rmClient.getQueueInfo(getQueueInfoRequest(ROOT, false, true, true))
.getQueueInfo();
getChildQueues(rootQueue, queues, false);
return queues;
}
@Override
public List<QueueInfo> getChildQueueInfos(String parent)
throws YarnRemoteException {
List<QueueInfo> queues = new ArrayList<QueueInfo>();
QueueInfo parentQueue =
rmClient.getQueueInfo(getQueueInfoRequest(parent, false, true, false))
.getQueueInfo();
getChildQueues(parentQueue, queues, true);
return queues;
}
private void getChildQueues(QueueInfo parent, List<QueueInfo> queues,
boolean recursive) {
List<QueueInfo> childQueues = parent.getChildQueues();
for (QueueInfo child : childQueues) {
queues.add(child);
if (recursive) {
getChildQueues(child, queues, recursive);
}
}
}
}

View File

@ -0,0 +1,30 @@
/**
* 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.
*/
package org.hadoop.yarn.client;
import org.junit.Test;
public class TestYarnClient {
@Test
public void test() {
// More to come later.
}
}

View File

@ -11,8 +11,7 @@
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. See accompanying LICENSE file.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
--><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.hadoop</groupId>
@ -186,5 +185,6 @@
<module>hadoop-yarn-server</module>
<module>hadoop-yarn-applications</module>
<module>hadoop-yarn-site</module>
<module>hadoop-yarn-client</module>
</modules>
</project>
</project>