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https://issues.apache.org/jira/browse/YARN-325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13549001#comment-13549001
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Hudson commented on YARN-325:
-----------------------------
Integrated in Hadoop-trunk-Commit #3205 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/3205/])
YARN-325. RM CapacityScheduler can deadlock when getQueueInfo() is called
and a container is completing (Arun C Murthy via tgraves) (Revision 1431070)
Result = SUCCESS
tgraves :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1431070
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/capacity/CSAssignment.java
*
/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/capacity/CapacityScheduler.java
*
/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/capacity/LeafQueue.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestLeafQueue.java
> RM CapacityScheduler can deadlock when getQueueInfo() is called and a
> container is completing
> ---------------------------------------------------------------------------------------------
>
> Key: YARN-325
> URL: https://issues.apache.org/jira/browse/YARN-325
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.0.2-alpha, 0.23.5
> Reporter: Jason Lowe
> Assignee: Arun C Murthy
> Priority: Blocker
> Fix For: 3.0.0, 2.0.3-alpha, 0.23.6
>
> Attachments: YARN-325-branch23.patch, YARN-325.patch, YARN-325.patch
>
>
> If a client calls getQueueInfo on a parent queue (e.g.: the root queue) and
> containers are completing then the RM can deadlock. getQueueInfo() locks the
> ParentQueue and then calls the child queues' getQueueInfo() methods in turn.
> However when a container completes, it locks the LeafQueue then calls back
> into the ParentQueue. When the two mix, it's a recipe for deadlock.
> Stacktrace to follow.
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