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https://issues.apache.org/jira/browse/MAPREDUCE-1316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amar Kamat updated MAPREDUCE-1316:
----------------------------------
Attachment: mapreduce-1316-v1.14.1-branch20-yahoo.patch
All ant tests (except TestReduceFetch, TestJobHistory, TestStreamingExitStatus
and TestJobTrackerRestartWithCS) passed for the patch attached
[here|https://issues.apache.org/jira/secure/attachment/12430141/mapreduce-1316-v1.14-branch20-yahoo.patch].
Failed tests (except TestJobTrackerRestartWithCS) passed upon re-run.
TestJobTrackerRestartWithCS timesout without the patch too. Attaching a new
patch incorporating Hemanth's offline comment w.r.t comments in
TestFairScheduler.
> JobTracker holds stale references to retired jobs via unreported tasks
> -----------------------------------------------------------------------
>
> Key: MAPREDUCE-1316
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1316
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker
> Reporter: Amar Kamat
> Assignee: Amar Kamat
> Priority: Blocker
> Attachments: mapreduce-1316-v1.11.patch,
> mapreduce-1316-v1.13-branch20-yahoo.patch,
> mapreduce-1316-v1.14-branch20-yahoo.patch,
> mapreduce-1316-v1.14.1-branch20-yahoo.patch, mapreduce-1316-v1.7.patch
>
>
> JobTracker fails to remove _unreported_ tasks' mapping from _taskToTIPMap_ if
> the job finishes and retires. _Unreported tasks_ refers to tasks that were
> scheduled but the tasktracker did not report back with the task status. In
> such cases a stale reference is held to TaskInProgress (and thus
> JobInProgress) long after the job is gone leading to memory leak.
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