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Cannot Synchronize Cluster Instance

From: <glassfish_at_javadesktop.org>
Date: Mon, 23 Feb 2009 16:19:56 PST

I have a simple GF deployment with a DAS, Node Agent, and Cluster Instance on a single host. I have OpenSSO deployed to the instance and it was initially working ok. Now I have stopped the instance and it won't restart. The process gets hung during the synchronization phase. The OpenSSO War file is 69M. I have increased the java heap for the node agent to 512 MB, but I am not receiving any "Out of Memory" errors.

The error I am seeing is

[code]
[#|2009-02-23T16:55:10.060-0700|INFO|sun-appserver9.1|javax.ee.enterprise.system.tools.synchronization|_ThreadID=10;_ThreadName=main;|IdentityManager Data: User:admin|#]

[#|2009-02-23T17:06:22.224-0700|INFO|sun-appserver9.1|javax.ee.enterprise.system.tools.synchronization|_ThreadID=11;_ThreadName=sync-1;|
SYNC014: Unable to update synchronization timestamp.
com.sun.enterprise.ee.synchronization.SynchronizationException:
Error while updating timestamp for synch request: ${com.sun.aas.instanceRoot}/applications/
        at com.sun.enterprise.ee.synchronization.TimestampCommand.execute(TimestampCommand.java:153)
        at com.sun.enterprise.ee.synchronization.BaseRequestMediator.commit(BaseRequestMediator.java:151)
        at com.sun.enterprise.ee.synchronization.BaseRequestMediator.run(BaseRequestMediator.java:126)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
        at com.sun.enterprise.ee.synchronization.TimestampCommand.execute(TimestampCommand.java:85)
        ... 3 more
[/code]
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