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https://issues.apache.org/jira/browse/YARN-540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13764510#comment-13764510
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Bikas Saha commented on YARN-540:
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What is the official API to determine if the MR job is complete or not? If its
the job client then we should probably make this change and make the official
API better.
> Race condition causing RM to potentially relaunch already unregistered AMs on
> RM restart
> ----------------------------------------------------------------------------------------
>
> Key: YARN-540
> URL: https://issues.apache.org/jira/browse/YARN-540
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Jian He
> Assignee: Jian He
> Attachments: YARN-540.1.patch, YARN-540.2.patch, YARN-540.3.patch,
> YARN-540.4.patch, YARN-540.5.patch, YARN-540.6.patch, YARN-540.patch,
> YARN-540.patch
>
>
> When job succeeds and successfully call finishApplicationMaster, RM shutdown
> and restart-dispatcher is stopped before it can process REMOVE_APP event. The
> next time RM comes back, it will reload the existing state files even though
> the job is succeeded
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