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