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https://issues.apache.org/jira/browse/MAPREDUCE-4452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated MAPREDUCE-4452:
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Attachment: MAPREDUCE-4452-v1.patch
Update for one FindBug issue. As this patch is to fix Findbugs issue, so no
additional test is attached.
> Several Findbugs issues with new FairScheduler in YARN
> ------------------------------------------------------
>
> Key: MAPREDUCE-4452
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4452
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: scheduler
> Affects Versions: 2.1.0-alpha
> Reporter: Junping Du
> Assignee: Junping Du
> Attachments: MAPREDUCE-4452-v1.patch, MAPREDUCE-4452.patch
>
>
> The good feature of FairScheduler is added recently to YARN. As recently
> PreCommit test from MAPREDUCE-4309, there are several bugs found by Findbugs
> related to FairScheduler:
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairSchedulerEventLog.shutdown()
> might ignore java.lang.Exception
> Inconsistent synchronization of
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairSchedulerEventLog.logDisabled;
> locked 50% of time
> Inconsistent synchronization of
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueueManager.queueMaxAppsDefault;
> locked 50% of time
> Inconsistent synchronization of
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.QueueManager.userMaxAppsDefault;
> locked 50% of time
> The details are
> in:https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2612//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-yarn-server-resourcemanager.html#DE_MIGHT_IGNORE
>
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