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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-5194) Heed interrupts during Fetcher shutdown
Date Thu, 23 May 2013 21:53:20 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chris Douglas updated MAPREDUCE-5194:

    Status: Patch Available  (was: Open)
> 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
>            Priority: Minor
>         Attachments: M5194-1.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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