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From "Ming Ma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2046) Out of band heartbeats are sent only on container kill and possibly too early
Date Fri, 29 Aug 2014 02:41:08 GMT

     [ 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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