Hi all,
I have a big problem with my message queue after a database crash. I use JBoss 
4.0.3SP1 and Hypersonic as persistancemanager for my message queue. Oracle 9i 
to persist my data. What I have done is, that I cut the database connection 
(with a small tcp-proxy, no oracle shutdown) and put four messages manually in 
the queue - successively. After I repaired the connection (restart the proxy) 
the first message is gone and the others are available.

In my message bean I test the database connection in the onMessage method. If 
she fails I rollback the transaction with context.setRollbackOnly() and return. 
 In the servers log file I can see, that the first message reaches several 
times the onMessage method, but only in 20% of cases after the refresh of the 
database connection. She is lost in 80% of my tests!

For my topic bean I use container managed transaction with trans-attribute 
required. In the oracle-ds.xml the parameter 
valid-connection-checker-class-name is set to refresh broken connections. If I 
start a mass test with 100 or 1000 messages in a loop I find all messages in 
the database.

Can somebody help me? What did I wrong because I can't imagine that JBoss has a 
leak in his transactional saves queue.

Bye,
Thomas

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