[jboss-user] [JBoss Messaging] - DetectDuplicates does not work??

mclu do-not-reply at jboss.com
Wed Feb 4 04:51:55 EST 2009


Non clustered environment!!
2 Servers
Messaging between them I am using a bridge with a remoteproviderloader.
I uses QOS 2 ( transacted mode )
I just upgraded to 1.4.2 GA

No I have read in the docs than maybe QOS 1 (dups allowed) with detectduplicates set to true is enough. 
So I made a test.

At the Bridge I added a breakpoint at Bridge.sendBatchNonTransacted().

Then I did (or the Bridge did ) the following steps:
1. the Bridge sends the messages to the target.
2. the target session is commited
   ---> Messages are processed not at the target
   ---> means the messages are not acknowledged on the source

4. I restared the server with the bridge
5. Messages are send again which is ok I think
6. BUT NOW the receiving server accepts the messages. I debugged into the code and the JDBCPersistenManager.cacheID detects the duplicate and updates the idcache. BUT nothing more?

I thought that detectduplicates means that the duplicate message is dropped on the server if already received once?!?

Is this wrong?


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