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https://issues.apache.org/jira/browse/MAPREDUCE-3972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13255858#comment-13255858
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Hadoop QA commented on MAPREDUCE-3972:
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+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12522994/MR-3972.txt
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 4 new or modified test
files.
+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 eclipse:eclipse. The patch built with eclipse:eclipse.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in .
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2239//testReport/
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2239//console
This message is automatically generated.
> Locking and exception issues in JobHistory Server.
> --------------------------------------------------
>
> Key: MAPREDUCE-3972
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3972
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2
> Affects Versions: 0.23.2
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Attachments: MR-3972.txt, MR-3972.txt, MR-3972.txt, MR-3972.txt,
> MR-3972.txt, MR-3972.txt
>
>
> The JobHistory server's locking is inconsistent and wrong in some cases.
> This is not super critical because the issues would only show up if a job is
> being cleaned up or moved from intermediate done to done, at the same time it
> is being parsed into a CompletedJob. However the locking is slowing down the
> server in some cases, and is a ticking time bomb that needs to be addressed.
> As part of this too we need to be sure that the Cleaner and Intermediate to
> Done migration threads handle exceptions properly. Now it appears that the
> exception is logged, and the thread just shuts down. This means that the
> history server could still be up and running for weeks and never remove old
> jobs.
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