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

Michael Lum wrote:
I'll get as many details as possible together and re-post. The only question I have is that this would be used in support of a fairly large scale production application (e.g. a search engine) and we'd prefer to run releases that are considered or marked as "stable", such as 0.91. If I got you all the same details using the 0.91 codebase, would that be acceptable?

Yes, i would prefer the newest to simplify my work but 0.91 is OK as well. We are planing a release 1rc1 (verion 1 release candidate) until end of week, hopefully we can resolve this issue before ...

best regards


PS: Can you reproduce the problem or is it appearing random?


On 10/19/04 12:20, Marcel Ruff wrote:

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)