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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7468) TestSplitTransactionOnCluster hangs frequently
Date Mon, 31 Dec 2012 06:32:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13541299#comment-13541299
] 

Ted Yu commented on HBASE-7468:
-------------------------------

I checked open region handler threads. They were all waiting with stack similar to the following:
{code}
   java.lang.Thread.State: WAITING (parking)
  at sun.misc.Unsafe.park(Native Method)
  - parking to wait for  <0x00000007ec7f14a0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
  at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
  at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
  at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
{code}
                
> TestSplitTransactionOnCluster hangs frequently
> ----------------------------------------------
>
>                 Key: HBASE-7468
>                 URL: https://issues.apache.org/jira/browse/HBASE-7468
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.3
>            Reporter: Lars Hofhansl
>         Attachments: TestSplitTransactionOnCluster-jstack.txt
>
>
> This what I saw once in a local build.
> {code}
> java.lang.Thread.State: TIMED_WAITING (sleeping)
>         at java.lang.Thread.sleep(Native Method)
>         at org.apache.hadoop.hbase.client.HBaseAdmin.disableTable(HBaseAdmin.java:831)
>         at org.apache.hadoop.hbase.regionserver.TestSplitTransactionOnCluster.testShouldClearRITWhenNodeFoundInSplittingState(TestSplitTransactionOnCluster.java:650)
> {code}

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