[jira] [Created] (MAPREDUCE-4452) Several Findbugs issues with new FairScheduler in YARN

["Junping Du (JIRA)" <ji...@apache.org>]

Junping Du created MAPREDUCE-4452:
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             Summary: 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


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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