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Posted to yarn-dev@hadoop.apache.org by "Arun C Murthy (JIRA)" <ji...@apache.org> on 2012/10/11 19:49:40 UTC
[jira] [Closed] (YARN-68) NodeManager will refuse to shutdown
indefinitely due to container log aggregation
[ https://issues.apache.org/jira/browse/YARN-68?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arun C Murthy closed YARN-68.
-----------------------------
> NodeManager will refuse to shutdown indefinitely due to container log aggregation
> ---------------------------------------------------------------------------------
>
> Key: YARN-68
> URL: https://issues.apache.org/jira/browse/YARN-68
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 0.23.3
> Environment: QE
> Reporter: patrick white
> Assignee: Daryn Sharp
> Fix For: 2.0.2-alpha, 0.23.3
>
> Attachments: YARN-68-1.patch, YARN-68.patch
>
>
> The nodemanager is able to get into a state where containermanager.logaggregation.AppLogAggregatorImpl will apparently wait
> indefinitely for log aggregation to complete for an application, even if that application has abnormally terminated and is no longer present.
> Observed behavior is that an attempt to stop the nodemanager daemon will return but have no effect, the nm log continually displays messages similar to this:
> [Thread-1]2012-08-21 17:44:07,581 INFO
> org.apache.hadoop.yarn.server.nodemanager.containermanager.logaggregation.AppLogAggregatorImpl:
> Waiting for aggregation to complete for application_1345221477405_2733
> The only recovery we found to work was to 'kill -9' the nm process.
> What exactly causes the NM to enter this state is unclear but we do see this behavior reliably when the NM has run a task which failed, for example when debugging oozie distcp actions and having a distcp map task fail, the NM that was running the container will now enter this state where a shutdown on said NM will never complete, 'never' in this case was waiting for 2 hours before killing the nodemanager process.
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