[jboss-user] [Messaging, JMS & JBossMQ] - Missing massage after database crash

thlemmen do-not-reply at jboss.com
Thu Oct 12 11:24:49 EDT 2006

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.


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