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https://issues.apache.org/jira/browse/MAPREDUCE-3528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Seth updated MAPREDUCE-3528:
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Attachment: MR3528.txt
Trivial patch - introducing a new config param for the timeout check. Not
including a unit test.
> The task timeout check interval should be configurable independent of
> mapreduce.task.timeout
> --------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3528
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3528
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am, mrv2
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Attachments: MR3528.txt
>
>
> TaskHeartbeatHandler sleeps for 'mapreduce.task.timeout' - between each
> check. If a task/NM goes bad immediately after starting a task - the timeout
> is detected in ~2x the configured timeout interval.
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