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https://issues.apache.org/jira/browse/MAPREDUCE-4817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Graves updated MAPREDUCE-4817:
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Attachment: MAPREDUCE-4817.patch
This patch removes the ping Timeout check from the AM task heart beat handler.
If we want to remove the other side from each Task we can do that in separate
jira.
> Hardcoded task ping timeout kills tasks localizing large amounts of data
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-4817
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4817
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster, mr-am
> Affects Versions: 0.23.3, 2.0.3-alpha
> Reporter: Jason Lowe
> Assignee: Thomas Graves
> Priority: Critical
> Attachments: MAPREDUCE-4817.patch, MAPREDUCE-4817.patch
>
>
> When a task is launched and spends more than 5 minutes localizing files, the
> AM will kill the task due to ping timeout. The AM's TaskHeartbeatHandler
> currently tracks tasks via a progress timeout and a ping timeout. The
> progress timeout can be controlled via mapreduce.task.timeout and even
> disabled by setting the property to 0. The ping timeout, however, is
> hardcoded to 5 minutes and cannot be configured. Therefore if the task takes
> too long localizing, it never gets running in order to ping back to the AM
> and the AM kills it due to ping timeout.
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