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https://issues.apache.org/jira/browse/MAPREDUCE-5505?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhijie Shen updated MAPREDUCE-5505:
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Attachment: MAPREDUCE-5505.1.patch
Created the patch. A bit different from what Bikas was proposed:
1. Not wait until MRClientProtocolSerivice stops, but wait until unregister is
called, which is in RMCommunicator#serviceStop. The delay is enough already.
2. Returning the prior state when the job is not unregistered in
JobImpl#getState(), such that both client and webUI can get consistent state.
> Clients should be notified job finished only after job successfully
> unregistered
> ---------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5505
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5505
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Jian He
> Assignee: Zhijie Shen
> Attachments: MAPREDUCE-5505.1.patch
>
>
> This is to make sure user is notified job finished after job is really done.
> This does increase client latency but can reduce some races during unregister
> like YARN-540
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