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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2006/11/01 23:11:19 UTC
[jira] Updated: (HADOOP-600) Race condition in JobTracker updating
the task tracker's status while declaring it lost
[ http://issues.apache.org/jira/browse/HADOOP-600?page=all ]
Owen O'Malley updated HADOOP-600:
---------------------------------
Fix Version/s: 0.9.0
(was: 0.8.0)
> Race condition in JobTracker updating the task tracker's status while declaring it lost
> ---------------------------------------------------------------------------------------
>
> Key: HADOOP-600
> URL: http://issues.apache.org/jira/browse/HADOOP-600
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.7.1
> Reporter: Owen O'Malley
> Assigned To: Owen O'Malley
> Fix For: 0.9.0
>
>
> There was a case where the JobTracker lost track of a set of tasks that were on a task tracker. It appears to be a race condition because the ExpireTrackers thread doesn't lock the JobTracker while updating the state. The fix would be to build a list of dead task trackers and then lock the job tracker while updating their status.
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