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https://issues.apache.org/jira/browse/ZOOKEEPER-846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12909634#action_12909634
 ] 

Hadoop QA commented on ZOOKEEPER-846:
-------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12454491/ZOOKEEPER-846.patch
  against trunk revision 997192.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified 
tests.
                        Please justify why no tests are needed for this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of 
release audit warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: 
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h7.grid.sp2.yahoo.net/111/testReport/
Findbugs warnings: 
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h7.grid.sp2.yahoo.net/111/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: 
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h7.grid.sp2.yahoo.net/111/console

This message is automatically generated.

> zookeeper client doesn't shut down cleanly on the close call
> ------------------------------------------------------------
>
>                 Key: ZOOKEEPER-846
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-846
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: java client
>    Affects Versions: 3.2.2
>            Reporter: Ted Yu
>            Assignee: Patrick Hunt
>            Priority: Blocker
>             Fix For: 3.3.2, 3.4.0
>
>         Attachments: rs-13.stack, ZOOKEEPER-846.patch
>
>
> Using HBase 0.20.6 (with HBASE-2473) we encountered a situation where 
> Regionserver
> process was shutting down and seemed to hang.
> Here is the bottom of region server log:
> http://pastebin.com/YYawJ4jA
> zookeeper-3.2.2 is used.
> Here is relevant portion from jstack - I attempted to attach jstack twice in 
> my email to d...@hbase.apache.org but failed:
> "DestroyJavaVM" prio=10 tid=0x00002aabb849c800 nid=0x6c60 waiting on 
> condition [0x0000000000000000]
>    java.lang.Thread.State: RUNNABLE
> "regionserver/10.32.42.245:60020" prio=10 tid=0x00002aabb84ce000 nid=0x6c81 
> in Object.wait() [0x0000000043755000]
>    java.lang.Thread.State: WAITING (on object monitor)
>         at java.lang.Object.wait(Native Method)
>         - waiting on <0x00002aaab76633c0> (a 
> org.apache.zookeeper.ClientCnxn$Packet)
>         at java.lang.Object.wait(Object.java:485)
>         at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1099)
>         - locked <0x00002aaab76633c0> (a 
> org.apache.zookeeper.ClientCnxn$Packet)
>         at org.apache.zookeeper.ClientCnxn.close(ClientCnxn.java:1077)
>         at org.apache.zookeeper.ZooKeeper.close(ZooKeeper.java:505)
>         - locked <0x00002aaabf5e0c30> (a org.apache.zookeeper.ZooKeeper)
>         at 
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.close(ZooKeeperWrapper.java:681)
>         at 
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:654)
>         at java.lang.Thread.run(Thread.java:619)
> "main-EventThread" daemon prio=10 tid=0x0000000043474000 nid=0x6c80 waiting 
> on condition [0x00000000413f3000]
>    java.lang.Thread.State: WAITING (parking)
>         at sun.misc.Unsafe.park(Native Method)
>         - parking to wait for  <0x00002aaabf6e9150> (a 
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
>         at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
>         at 
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
>         at 
> java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
>         at 
> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:414)

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