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https://issues.apache.org/jira/browse/YARN-5262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15354538#comment-15354538
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Hudson commented on YARN-5262:
------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #10031 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10031/])
YARN-5262. Optimize sending RMNodeFinishedContainersPulledByAMEvent for
(rohithsharmaks: rev 26b5e6116f392b6be91dca57968259f87554ce33)
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptImpl.java
*
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/TestRMAppAttemptTransitions.java
> Optimize sending RMNodeFinishedContainersPulledByAMEvent for every AM
> heartbeat
> -------------------------------------------------------------------------------
>
> Key: YARN-5262
> URL: https://issues.apache.org/jira/browse/YARN-5262
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Fix For: 2.9.0
>
> Attachments: 0001-YARN-5262.patch, 0002-YARN-5262.patch
>
>
> It is observed that RM triggers an one event for every
> ApplicationMaster#allocate request in the following trace. This is not
> necessarily required and it can be optimized such that send only if any
> containers are there to acknowledge to NodeManager.
> {code}
> RMAppAttemptImpl.sendFinishedContainersToNM() line: 1871
> RMAppAttemptImpl.pullJustFinishedContainers() line: 805
> ApplicationMasterService.allocate(AllocateRequest) line: 567
> {code}
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