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Re: [xmlblaster] Internal problem: we have messages but are not alive

Michael Lum wrote:
I'm getting the following error... any ideas? I'm using XB 0.91 with a cluster of 6 machines and one message master. Please let me know if you need any more info -- I attached some snippets fromt he stack trace.


please send all details:

- Upgrade to the newest xmlBlaster from subversion
- Switch on logging (-trace true -call true)
- Add a small architecture drawing so that we get an idea about your setup
- Send details if it is reproducable and how

Please send big logging output directly to my email address.

You can switch off UserList events (i you are not using them) with


until this issue is resolved.



[Oct 19, 2004 1:13:04 AM ERROR Thread-69 TopicHandler-/node/relay_sj/topic/__sys
__UserList] Internal problem: we have messages but are not alive:
<TopicHandler id='relay_sj/topic/__sys__UserList' state='UNREFERENCED'>
<topicEntry>__sys__UserList/2004-10-19 00:15:34.273</topicEntry>
<msgDistributor typeVersion='undef,1.0'/>
<persistence relating='msgUnitStore' maxEntries='100000000' maxEntriesCache='
10000' maxBytes='2147483647' maxBytesCache='2097152'/>
<queue relating='history' maxEntries='2' maxEntriesCache='2'/>

java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1064)
at org.xmlBlaster.engine.TopicHandler.getNumOfHistoryEntries(TopicHandler.java:1411)

at org.xmlBlaster.engine.TopicHandler.publish(TopicHandler.java:580)
at org.xmlBlaster.engine.RequestBroker.publish(RequestBroker.java:1654)
at org.xmlBlaster.engine.RequestBroker.publish(RequestBroker.java:1479)
at org.xmlBlaster.engine.RequestBroker.publish(RequestBroker.java:1473)
at org.xmlBlaster.engine.RequestBroker.updateInternalUserList(RequestBroker.java:1058)