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https://issues.apache.org/jira/browse/MAPREDUCE-5194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13687483#comment-13687483
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Arun C Murthy commented on MAPREDUCE-5194:
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+1 lgtm. Thanks Chris.
> Heed interrupts during Fetcher shutdown
> ---------------------------------------
>
> Key: MAPREDUCE-5194
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5194
> Project: Hadoop Map/Reduce
> Issue Type: Task
> Components: task
> Reporter: Chris Douglas
> Assignee: Chris Douglas
> Priority: Minor
> Fix For: 2.1.0-beta
>
> Attachments: M5194-1.patch, M5194-2.patch, M5194.patch
>
>
> In the current implementation, {{Fetcher}} instances usually exit gracefully
> when the shuffle succeeds. When it fails, threads are interrupted, but may
> continue running harmlessly until the JVM shuts down.
> However, to generate consistent checkpoints, these threads should exit
> cleanly to quiesce the state of the shuffle.
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