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From "sandflee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4528) decreaseContainer Message maybe lost if NM restart
Date Mon, 04 Jan 2016 16:24:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15081322#comment-15081322
] 

sandflee commented on YARN-4528:
--------------------------------

HI, [~mding],  container decrease msg is passed like container complete msg passed from RM
to AM. so a successfully nodeHeartBeat must ensure that container decrease msg is persisted
in NM state store.

{code:title=RMAppAttemptImpl.java # pullJustFinishContainers}
      // A new allocate means the AM received the previously sent
      // finishedContainers. We can ack this to NM now
      sendFinishedContainersToNM();
{code}

> decreaseContainer Message maybe lost if NM restart
> --------------------------------------------------
>
>                 Key: YARN-4528
>                 URL: https://issues.apache.org/jira/browse/YARN-4528
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: sandflee
>         Attachments: YARN-4528.01.patch
>
>
> we may pending the container decrease msg util next heartbeat. or checks the resource
with rmContainer when node register.



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