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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-3280) Findbug issue in FairScheduler
Date Fri, 27 Feb 2015 20:13:05 GMT
Xuan Gong created YARN-3280:
-------------------------------

             Summary: Findbug issue in FairScheduler
                 Key: YARN-3280
                 URL: https://issues.apache.org/jira/browse/YARN-3280
             Project: Hadoop YARN
          Issue Type: Bug
          Components: fairscheduler
            Reporter: Xuan Gong


Several findbug issue:
{code}
	
Bug type IS2_INCONSISTENT_SYNC (click for details) 
In class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationFileLoaderService
Field org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationFileLoaderService.reloadListener
Synchronized 50% of the time
Unsynchronized access at AllocationFileLoaderService.java:[line 410]
Synchronized access at AllocationFileLoaderService.java:[line 192]
{code}
{code}
	
Bug type IS2_INCONSISTENT_SYNC (click for details) 
In class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler
Field org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.allocConf
Synchronized 80% of the time
Unsynchronized access at FairScheduler.java:[line 1637]
Unsynchronized access at FairScheduler.java:[line 1466]
Synchronized access at FairScheduler.java:[line 1246]
Synchronized access at FairScheduler.java:[line 1339]
Synchronized access at FairScheduler.java:[line 1540]
Synchronized access at FairScheduler.java:[line 1678]
Synchronized access at FairScheduler.java:[line 694]
Synchronized access at FairScheduler.java:[line 1477]
Synchronized access at FairScheduler.java:[line 1478]
Synchronized access at FairScheduler.java:[line 1479]
{code}
{code}
	
Bug type IS2_INCONSISTENT_SYNC (click for details) 
In class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler
Field org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.fsOpDurations
Synchronized 66% of the time
Unsynchronized access at FairScheduler.java:[line 264]
Unsynchronized access at FairScheduler.java:[line 1016]
Synchronized access at FairScheduler.java:[line 1331]
Synchronized access at FairScheduler.java:[line 432]
Synchronized access at FairScheduler.java:[line 328]
Synchronized access at FairScheduler.java:[line 987]
{code}
{code}
	
Bug type IS2_INCONSISTENT_SYNC (click for details) 
In class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler
Field org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.updateInterval
Synchronized 75% of the time
Unsynchronized access at FairScheduler.java:[line 259]
Synchronized access at FairScheduler.java:[line 1321]
Synchronized access at FairScheduler.java:[line 1322]
Synchronized access at FairScheduler.java:[line 1323]
{code}
{code}
	
Bug type BC_UNCONFIRMED_CAST (click for details) 
In class org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode
In method org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerNode.reserveResource(SchedulerApplicationAttempt,
Priority, RMContainer)
Actual type org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerApplicationAttempt
Expected org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt
Value loaded from application
At FSSchedulerNode.java:[line 79]
{code}



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