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https://issues.apache.org/jira/browse/YARN-301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543858#comment-13543858
]
Hudson commented on YARN-301:
-----------------------------
Integrated in Hadoop-Hdfs-trunk #1275 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1275/])
YARN-301. Fair scheduler throws ConcurrentModificationException when
iterating over app's priorities. Contributed by Sandy Ryza. (Revision 1428400)
Result = FAILURE
tomwhite :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1428400
Files :
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/AppSchedulable.java
> Fair scheduler throws ConcurrentModificationException when iterating over
> app's priorities
> ------------------------------------------------------------------------------------------
>
> Key: YARN-301
> URL: https://issues.apache.org/jira/browse/YARN-301
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager, scheduler
> Affects Versions: 2.0.2-alpha
> Reporter: shenhong
> Assignee: shenhong
> Fix For: 2.0.3-alpha
>
> Attachments: YARN-301.patch, YARN-301.patch
>
>
> In my test cluster, fairscheduler appear to concurrentModificationException
> and RM crash, here is the message:
> 2012-12-30 17:14:17,171 FATAL
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in
> handling event type NODE_UPDATE to the scheduler
> java.util.ConcurrentModificationException
> at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
> at java.util.TreeMap$KeyIterator.next(TreeMap.java:1154)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:297)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue.assignContainer(FSLeafQueue.java:181)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.nodeUpdate(FairScheduler.java:780)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:842)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:98)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:340)
> at java.lang.Thread.run(Thread.java:662)
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