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HADOOP-11615. Update ServiceLevelAuth.md for YARN. Contributed by Brahma Reddy Battula. 

(cherry picked from commit dd9cd0797c)
This commit is contained in:
Akira Ajisaka 2015-03-01 22:16:06 -08:00
parent 3854b21c4c
commit c40293c828
2 changed files with 11 additions and 9 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -617,6 +617,9 @@ Release 2.7.0 - UNRELEASED
HADOOP-11634. Description of webhdfs' principal/keytab should switch places
each other. (Brahma Reddy Battula via ozawa)
HADOOP-11615. Update ServiceLevelAuth.md for YARN.
(Brahma Reddy Battula via aajisaka)
Release 2.6.1 - UNRELEASED
INCOMPATIBLE CHANGES

17
hadoop-common-project/hadoop-common/src/site/markdown/ServiceLevelAuth.md
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@ -68,10 +68,9 @@ This section lists the various Hadoop services and their configuration knobs:
| security.datanode.protocol.acl | ACL for DatanodeProtocol, which is used by datanodes to communicate with the namenode. |
| security.inter.datanode.protocol.acl | ACL for InterDatanodeProtocol, the inter-datanode protocol for updating generation timestamp. |
| security.namenode.protocol.acl | ACL for NamenodeProtocol, the protocol used by the secondary namenode to communicate with the namenode. |
| security.inter.tracker.protocol.acl | ACL for InterTrackerProtocol, used by the tasktrackers to communicate with the jobtracker. |
| security.job.submission.protocol.acl | ACL for JobSubmissionProtocol, used by job clients to communciate with the jobtracker for job submission, querying job status etc. |
| security.task.umbilical.protocol.acl | ACL for TaskUmbilicalProtocol, used by the map and reduce tasks to communicate with the parent tasktracker. |
| security.refresh.policy.protocol.acl | ACL for RefreshAuthorizationPolicyProtocol, used by the dfsadmin and mradmin commands to refresh the security policy in-effect. |
| security.job.client.protocol.acl | ACL for JobSubmissionProtocol, used by job clients to communciate with the resourcemanager for job submission, querying job status etc. |
| security.job.task.protocol.acl | ACL for TaskUmbilicalProtocol, used by the map and reduce tasks to communicate with the parent nodemanager. |
| security.refresh.policy.protocol.acl | ACL for RefreshAuthorizationPolicyProtocol, used by the dfsadmin and rmadmin commands to refresh the security policy in-effect. |
| security.ha.service.protocol.acl | ACL for HAService protocol used by HAAdmin to manage the active and stand-by states of namenode. |
### Access Control Lists
@ -98,15 +97,15 @@ If access control list is not defined for a service, the value of `security.serv
### Refreshing Service Level Authorization Configuration
The service-level authorization configuration for the NameNode and JobTracker can be changed without restarting either of the Hadoop master daemons. The cluster administrator can change `$HADOOP_CONF_DIR/hadoop-policy.xml` on the master nodes and instruct the NameNode and JobTracker to reload their respective configurations via the `-refreshServiceAcl` switch to `dfsadmin` and `mradmin` commands respectively.
The service-level authorization configuration for the NameNode and ResourceManager can be changed without restarting either of the Hadoop master daemons. The cluster administrator can change `$HADOOP_CONF_DIR/hadoop-policy.xml` on the master nodes and instruct the NameNode and ResourceManager to reload their respective configurations via the `-refreshServiceAcl` switch to `dfsadmin` and `rmadmin` commands respectively.
Refresh the service-level authorization configuration for the NameNode:
$ bin/hadoop dfsadmin -refreshServiceAcl
$ bin/hdfs dfsadmin -refreshServiceAcl
Refresh the service-level authorization configuration for the JobTracker:
Refresh the service-level authorization configuration for the ResourceManager:
$ bin/hadoop mradmin -refreshServiceAcl
$ bin/yarn rmadmin -refreshServiceAcl
Of course, one can use the `security.refresh.policy.protocol.acl` property in `$HADOOP_CONF_DIR/hadoop-policy.xml` to restrict access to the ability to refresh the service-level authorization configuration to certain users/groups.
@ -125,7 +124,7 @@ Of course, one can use the `security.refresh.policy.protocol.acl` property in `$
Allow only users `alice`, `bob` and users in the `mapreduce` group to submit jobs to the MapReduce cluster:
<property>
<name>security.job.submission.protocol.acl</name>
<name>security.job.client.protocol.acl</name>
<value>alice,bob mapreduce</value>
</property>