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Posted to yarn-issues@hadoop.apache.org by "Ming Ma (JIRA)" <ji...@apache.org> on 2014/08/29 04:41:08 UTC

[jira] [Updated] (YARN-2046) Out of band heartbeats are sent only on container kill and possibly too early

     [ https://issues.apache.org/jira/browse/YARN-2046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ming Ma updated YARN-2046:
--------------------------

    Attachment: YARN-2046.patch

In the patch, the container asks NodeStatusUpdater to send out of band heartbeats when it exits. The definition of "exit" also includes special cases where the container is killed before it is launched. This allows RM to know about completed containers via out of band heartbeats under different scenarios.

> Out of band heartbeats are sent only on container kill and possibly too early
> -----------------------------------------------------------------------------
>
>                 Key: YARN-2046
>                 URL: https://issues.apache.org/jira/browse/YARN-2046
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 0.23.10, 2.4.0
>            Reporter: Jason Lowe
>         Attachments: YARN-2046.patch
>
>
> [~mingma] pointed out in the review discussion for MAPREDUCE-5465 that the NM is currently sending out of band heartbeats only when stopContainer is called.  In addition those heartbeats might be sent too early because the container kill event is asynchronously posted then the heartbeat monitor is notified.



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