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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1367) After restart NM should resync with the RM without killing containers
Date Mon, 07 Jul 2014 04:48:34 GMT

    [ https://issues.apache.org/jira/browse/YARN-1367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14053334#comment-14053334
] 

Hudson commented on YARN-1367:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #5831 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/5831/])
YARN-1367. Changed NM to not kill containers on NM resync if RM work-preserving restart is
enabled. Contributed by Anubhav Dhoot (jianhe: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1608334)
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/NodeManager.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/TestNodeManagerResync.java


> After restart NM should resync with the RM without killing containers
> ---------------------------------------------------------------------
>
>                 Key: YARN-1367
>                 URL: https://issues.apache.org/jira/browse/YARN-1367
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Anubhav Dhoot
>             Fix For: 2.5.0
>
>         Attachments: YARN-1367.001.patch, YARN-1367.002.patch, YARN-1367.003.patch, YARN-1367.prototype.patch
>
>
> After RM restart, the RM sends a resync response to NMs that heartbeat to it.  Upon receiving
the resync response, the NM kills all containers and re-registers with the RM. The NM should
be changed to not kill the container and instead inform the RM about all currently running
containers including their allocations etc. After the re-register, the NM should send all
pending container completions to the RM as usual.



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