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https://issues.apache.org/jira/browse/MAPREDUCE-1568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12861345#action_12861345
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Hadoop QA commented on MAPREDUCE-1568:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12442919/MAPREDUCE-1568-v2.1.txt
against trunk revision 938324.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/145/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/145/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/145/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/145/console
This message is automatically generated.
> TrackerDistributedCacheManager should clean up cache in a background thread
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-1568
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1568
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-1568-v2.1.txt, MAPREDUCE-1568-v2.txt,
> MAPREDUCE-1568.txt
>
>
> Right now the TrackerDistributedCacheManager do the clean up with the
> following code path:
> {code}
> TaskRunner.run() ->
> TrackerDistributedCacheManager.setup() ->
> TrackerDistributedCacheManager.getLocalCache() ->
> TrackerDistributedCacheManager.deleteCache()
> {code}
> The deletion of the cache files can take a long time and it should not be
> done by a task. We suggest that there should be a separate thread checking
> and clean up the cache files.
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