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From "Chengbing Liu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2997) NM keeps sending finished containers to RM until app is finished
Date Tue, 30 Dec 2014 06:48:13 GMT

     [ https://issues.apache.org/jira/browse/YARN-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chengbing Liu updated YARN-2997:
--------------------------------
    Attachment: YARN-2997.patch

Report to RM only once by not calling {{containerStatuses.add(containerStatus);}} from the
second time on.

Tested on a real cluster and it works well.

> NM keeps sending finished containers to RM until app is finished
> ----------------------------------------------------------------
>
>                 Key: YARN-2997
>                 URL: https://issues.apache.org/jira/browse/YARN-2997
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.6.0
>            Reporter: Chengbing Liu
>         Attachments: YARN-2997.patch
>
>
> We have seen in RM log a lot of
> {quote}
> INFO org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler: Null
container completed...
> {quote}
> It is caused by NM sending completed containers repeatedly until the app is finished.
On the RM side, the container is already released, hence {{getRMContainer}} returns null.



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