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From aasoj j <aas....@gmail.com>
Subject Deadlock in 1.6
Date Tue, 25 Aug 2009 04:15:11 GMT
Hi,

We are observing a deadlock in cluster deployment in the latest
release 1.6. Here is the stack traces from one of the waiting threads
...

   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:485)
        at EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock.acquire(Unknown
Source)
        - locked <0x0000002ad6cb9b40> (a
EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock)
        at org.apache.jackrabbit.core.state.DefaultISMLocking$ReadLockImpl.<init>(DefaultISMLocking.java:84)
        at org.apache.jackrabbit.core.state.DefaultISMLocking$ReadLockImpl.<init>(DefaultISMLocking.java:78)
        at org.apache.jackrabbit.core.state.DefaultISMLocking.acquireReadLock(DefaultISMLocking.java:44)
        at org.apache.jackrabbit.core.state.SharedItemStateManager.acquireReadLock(SharedItemStateManager.java:1432)
        at org.apache.jackrabbit.core.state.SharedItemStateManager.getItemState(SharedItemStateManager.java:253)
        at org.apache.jackrabbit.core.state.LocalItemStateManager.getNodeState(LocalItemStateManager.java:107)
        at org.apache.jackrabbit.core.state.LocalItemStateManager.getItemState(LocalItemStateManager.java:172)
        - locked <0x0000002b0e3be100> (a
org.apache.jackrabbit.core.state.XAItemStateManager)
        at org.apache.jackrabbit.core.state.XAItemStateManager.getItemState(XAItemStateManager.java:260)
        at org.apache.jackrabbit.core.version.XAVersionManager.<init>(XAVersionManager.java:115)
        at org.apache.jackrabbit.core.XASessionImpl.createVersionManager(XASessionImpl.java:175)
        at org.apache.jackrabbit.core.SessionImpl.<init>(SessionImpl.java:303)
        at org.apache.jackrabbit.core.SessionImpl.<init>(SessionImpl.java:271)
        at org.apache.jackrabbit.core.XASessionImpl.<init>(XASessionImpl.java:105)
        at org.apache.jackrabbit.core.RepositoryImpl.createSessionInstance(RepositoryImpl.java:1517)
        at org.apache.jackrabbit.core.RepositoryImpl.createSession(RepositoryImpl.java:964)
        at org.apache.jackrabbit.core.RepositoryImpl.login(RepositoryImpl.java:1395)
---------------

Thanks for your help


regards
aasoj

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