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Ovidiu Feodorov closed JBMESSAGING-520.
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Resolution: Done
Modified an XASession to behave as a non-transactional session, unless associated with a
global transaction. See
Messages received from Receiver.receive() using an XA are never
deleted from the database if not withing a transactional boundary.
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Key: JBMESSAGING-520
URL:
http://jira.jboss.com/jira/browse/JBMESSAGING-520
Project: JBoss Messaging
Issue Type: Bug
Components: Messaging Core
Affects Versions: 1.0.1.CR4
Environment: Windows XP, JBossServer4.0.4GA, Oracle10G
Reporter: Joel Lindheimer
Assigned To: Ovidiu Feodorov
Priority: Critical
Fix For: 1.0.1.CR5
Create a simple receiver, but do not place it within a Transaction boundary; shut down
the server; look up the tables and you will see all the messages are still in the Messages
and MessageRef tables.
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Observations using a debbuger reveal the following:
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Looking over the org.jboss.resource.adapter.jms.JmsManagedConnection the setup method
will always call createXAQueueSession() and create an XAQueconnection as transacted and
Session.SESSION_TRANSACTED. That being the case, non-XA Queues have no message-deletion
problems with the current version (RC4) because the API removes all messages that are
"not transacted and (!ack==1). I am guessing that using XA is problematic because the
persistence layer is expecting manipulation of the transacted XASession--which for some
reason is not working in this version of Messaging. More specifically, I suspect that when
MDBs are tested you are not seeing this problem because the container is doing needed
magic to manage the XASession transacted state, and therefore everything works fine
therein. And consequently, when operating as a non-MDB client, AKA a simple Receiver,
there is something missing in the equation ergo the problems that I have been reporting
regarding the ClickCommerce applications which use Receivers and not MDBs.
Work-around: None; the strategy for my team is to NOT use an XAQueueConnection while
waiting for a fix.
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