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Posted to mapreduce-issues@hadoop.apache.org by "Amar Kamat (JIRA)" <ji...@apache.org> on 2009/12/18 18:42:18 UTC
[jira] Assigned: (MAPREDUCE-1316) JobTracker holds stale references
to retired jobs via speculated tips
[ https://issues.apache.org/jira/browse/MAPREDUCE-1316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amar Kamat reassigned MAPREDUCE-1316:
-------------------------------------
Assignee: Amar Kamat
> JobTracker holds stale references to retired jobs via speculated tips
> ----------------------------------------------------------------------
>
> 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
>
> JobTracker fails to remove speculative tasks' mapping from _taskToTIPMap_ if the job finishes and retires before the tracker (running the speculative tasks) reports back. 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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