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https://issues.apache.org/jira/browse/MAPREDUCE-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13039168#comment-13039168
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Hudson commented on MAPREDUCE-2495:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #690 (See
[https://builds.apache.org/hudson/job/Hadoop-Mapreduce-trunk/690/])
MAPREDUCE-2495. exit() the TaskTracker when the distributed cache cleanup
thread dies. Contributed by Robert Joseph Evans
cdouglas :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1127361
Files :
*
/hadoop/mapreduce/trunk/src/java/org/apache/hadoop/mapreduce/filecache/TrackerDistributedCacheManager.java
* /hadoop/mapreduce/trunk/CHANGES.txt
*
/hadoop/mapreduce/trunk/src/test/mapred/org/apache/hadoop/mapreduce/filecache/TestTrackerDistributedCacheManager.java
> The distributed cache cleanup thread has no monitoring to check to see if it
> has died for some reason
> -----------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-2495
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2495
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: distributed-cache
> Affects Versions: 0.21.0
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Priority: Minor
> Fix For: 0.20.205.0, 0.23.0
>
> Attachments: MAPREDUCE-2495-20.20X-V1.patch,
> MAPREDUCE-2495-20.20X-V2.patch, MAPREDUCE-2495-20.20X-V3.patch,
> MAPREDUCE-2495-20.20X-V4.patch, MAPREDUCE-2495-v1.patch,
> MAPREDUCE-2495-v2.patch, MAPREDUCE-2495-v3.patch, MAPREDUCE-2495-v4.patch
>
>
> The cleanup thread in the distributed cache handles IOExceptions and the like
> correctly, but just to be a bit more defensive it would be good to monitor
> the thread, and check that it is still alive regularly, so that the
> distributed cache does not fill up the entire disk on the node.
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