Thanks for your comments, I'm still working on this issue and I guess I'm consuming an Exception which is why I'm missing out this JMS message.
On 8/7/03 4:57 PM, [EMAIL PROTECTED] wrote: > >On the sending side, the fact that you use a transacted session (true >for >the first argument of the createQueueSession) makes the second arguments >(Session.DUPS_OK_ACKNOWLEDGE) useless. This argument is ignored in >case of >transacted session. The message is guaranteed to be delivered as >soon as >your client sending the message will do a successful commit on the >QueueSession. > >On the MDB side, it is the same thing. Since you use Container managed >transaction, the acknowledge-mode is ignored. I do believe that if >onMessage >is throwing an exception or if setRollbackOnly is called, the message >will >be redelivered (according to EJB spec both should behave exactly >the same >way). > >So, for my point of view and according to the description of your >problem, >either there is more configuration to do on the JDBC persistence >side to >make sure that no messages can be lost either there is a bug somewhere. >Which database are you using through JDBC for the JMS message persistence? > >Thomas Cherel > > >-----Original Message----- >From: Magesh Prabhu [mailto:[EMAIL PROTECTED] >Sent: Thursday, August 07, 2003 11:11 AM >To: jboss-user >Subject: [JBoss-user] JMS question > >Hi Guys, > >I've configured JMS to use JDBC persistence and I send JMS messages >in >DUPS_OK_ACKNOWLEDGE mode to make sure that the messages are guaranteed. >I >use the following code to enforce this when I send the message. > >queueConnection.createQueueSession(true, Session.DUPS_OK_ACKNOWLEDGE); >queueSender.setDeliveryMode(DeliveryMode.PERSISTENT); > >The deployment descriptor for my Message Driven Bean is as follows: ><message-driven > > <description><![CDATA[This is reponsible for prioritising requests >and >dispatching them accordingly.]]></description> > <ejb-name>QueueDispatcherMDBBean</ejb-name> > ><ejb-class>com.pindartech.imageprocessing.manager.queuemanager.QueueDispatch >erBean</ejb-class> > <message-selector></message-selector> > <transaction-type>Container</transaction-type> > <acknowledge-mode>Dups-ok-acknowledge</acknowledge-mode> > <message-driven-destination> > <destination-type>javax.jms.Queue</destination-type> > </message-driven-destination> ></message-driven> > >I have absolutely no complains in this configuration and it works >fine when >things happen normally. But when I abruptly bounce JBoss using (Ctrl >+ C) >and restart it again, some times (not always), I tend to loose one >JMS >message per abrupt restart. Since I've configured in DUPS_OK_ACKNOWLEDGE >mode, I expect app server to resend the notification even in exceptional >scenarios. In my MDB, I do the following. > >public void onMessage(javax.jms.Message message) { > > try { > > // do the business... > > } catch(Exception e) { > this.messageContext.setRollbackOnly(); > } > >} > >Should I propagate the exception up the onMessage() call instead >of just >rolling back the Transaction in my MDB ? >Is there another way to shutdown JBoss other then (Ctrl + C) so that >abnormal scenarios in my application does not happen ? > >Your advice is much appreciated. Thanks in advance, >Magesh > > > >********************************************************************** >This email and its attachments are intended for the above >named only and may be confidential. 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