[ http://issues.apache.org/jira/browse/HADOOP-225?page=all ]
Doug Cutting updated HADOOP-225:
--------------------------------
Fix Version: 0.5.0
(was: 0.4.0)
> tasks are left over when a job fails
> ------------------------------------
>
> Key: HADOOP-225
> URL: http://issues.apache.org/jira/browse/HADOOP-225
> Project: Hadoop
> Type: Bug
> Components: mapred
> Versions: 0.2.0
> Reporter: Yoram Arnon
> Priority: Minor
> Fix For: 0.5.0
>
> when jobs are stopped or otherwise fail, tasks are often left around.
> the job tracker shows that there are map or reduce (mostly reduce) tasks
> running, when no job is running.
> these accumulate over time.
> eventually there are so many of those, that the job tracker can't launch new
> tasks, requiring a restart of the MR cluster.
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