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Posted to yarn-issues@hadoop.apache.org by "Haibo Chen (JIRA)" <ji...@apache.org> on 2017/05/26 04:18:04 UTC

[jira] [Updated] (YARN-6555) Store application flow context in NM state store for work-preserving restart

     [ https://issues.apache.org/jira/browse/YARN-6555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haibo Chen updated YARN-6555:
-----------------------------
    Summary: Store application flow context in NM state store for work-preserving restart  (was: Enable flow context read (& corresponding write) for recovering application with NM restart )

> Store application flow context in NM state store for work-preserving restart
> ----------------------------------------------------------------------------
>
>                 Key: YARN-6555
>                 URL: https://issues.apache.org/jira/browse/YARN-6555
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>    Affects Versions: YARN-5355, YARN-5355-branch-2, 3.0.0-alpha3
>            Reporter: Vrushali C
>            Assignee: Rohith Sharma K S
>              Labels: yarn-5355-merge-blocker
>         Attachments: YARN-6555.001.patch, YARN-6555.002.patch, YARN-6555.003.patch
>
>
> If timeline service v2 is enabled and NM is restarted with recovery enabled, then NM fails to start and throws an error as  "flow context can't be null".
> This is happening because the flow context did not exist before but now that timeline service v2 is enabled, ApplicationImpl expects it to exist. 
> This would also happen even if flow context existed before but since we are not persisting it / reading it during ContainerManagerImpl#recoverApplication, it does not get passed in to ApplicationImpl.
> full stack trace
> {code}
> 2017-05-03 21:51:52,178 FATAL org.apache.hadoop.yarn.server.nodemanager.NodeManager: Error starting NodeManager
> java.lang.IllegalArgumentException: flow context cannot be null
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationImpl.<init>(ApplicationImpl.java:104)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.application.ApplicationImpl.<init>(ApplicationImpl.java:90)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.recoverApplication(ContainerManagerImpl.java:318)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.recover(ContainerManagerImpl.java:280)
>         at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.serviceInit(ContainerManagerImpl.java:267)
>         at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
>         at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
>         at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:276)
>         at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
>         at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:588)
>         at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:649)
> {code}



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