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Date: Thu, 15 Jul 2010 06:01:59 -0400 (EDT)
From: "Shashank (JIRA)" <jira@apache.org>
To: dev@jackrabbit.apache.org
Subject: [jira] Updated: (JCR-2438) Multiple threads are trying to acquire
 journal writing lock, but none of the threads are holding the lock
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     [ https://issues.apache.org/jira/browse/JCR-2438?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shashank updated JCR-2438:
--------------------------

    Attachment: forumthreaddump-1279106339849.tdump

Attaching the thread dump

> Multiple threads are trying to acquire journal writing lock, but none of the threads are holding the lock
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: JCR-2438
>                 URL: https://issues.apache.org/jira/browse/JCR-2438
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: clustering
>    Affects Versions: 1.5.5
>         Environment: R27.5.0-110_o-99226-1.5.0_14-20080528-1505-linux-x86_64
> weblogic 9.2
>            Reporter: Andrey Adamovich
>            Priority: Critical
>         Attachments: forumthreaddump-1279106339849.tdump, jr_dump.txt
>
>
> Multiple threads that are saving content on one of the cluster nodes are hanging in attempt to get a lock to AbstractJournal:
> "[STUCK] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'" id=14 idx=0x90 tid=30315 prio=1 alive, in native, waiting, daemon
>     -- Waiting for notification on: EDU/oswego/cs/dl/util/concurrent/WriterPreferenceReadWriteLock$WriterLock@0x2b8cd608e770[fat lock]
>     at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
>     at java/lang/Object.wait(J)V(Native Method)
>     at java/lang/Object.wait(Object.java:474)
>     at EDU/oswego/cs/dl/util/concurrent/WriterPreferenceReadWriteLock$WriterLock.acquire()V(Unknown Source)
>     at org/apache/jackrabbit/core/journal/AbstractJournal.lockAndSync(AbstractJournal.java:250)
>     at org/apache/jackrabbit/core/journal/DefaultRecordProducer.append(DefaultRecordProducer.java:51)
>     at org/apache/jackrabbit/core/cluster/ClusterNode$WorkspaceUpdateChannel.updateCreated(ClusterNode.java:586)
>     at org/apache/jackrabbit/core/state/SharedItemStateManager$Update.begin(SharedItemStateManager.java:549)
>     at org/apache/jackrabbit/core/state/SharedItemStateManager.beginUpdate(SharedItemStateManager.java:1062)
>     at org/apache/jackrabbit/core/state/SharedItemStateManager.update(SharedItemStateManager.java:1092)
>     at org/apache/jackrabbit/core/state/LocalItemStateManager.update(LocalItemStateManager.java:337)
>     at org/apache/jackrabbit/core/state/XAItemStateManager.update(XAItemStateManager.java:347)
>     at org/apache/jackrabbit/core/state/LocalItemStateManager.update(LocalItemStateManager.java:312)
>     at org/apache/jackrabbit/core/state/SessionItemStateManager.update(SessionItemStateManager.java:313)
>     at org/apache/jackrabbit/core/ItemImpl.save(ItemImpl.java:1103)
>     ^-- Holding lock: org/apache/jackrabbit/core/XASessionImpl@0x2b8cf5d40d38[thin lock]
>     at org/apache/jackrabbit/core/SessionImpl.save(SessionImpl.java:858)
> No thread is holding that lock. Thread dump is attached to the issue.
> This issues seems to be similar to JCR-1846.

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