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| "MQJMS2002E failed to get message from MQ queue" |
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Message
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| lecmns |
 Posted: Tue Feb 26, 2002 10:19 pm Post subject: |
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Apprentice
Joined: 26 Dec 2001
Posts: 36
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Folks..
I am stuck with another problem.
I have nearly 5000 messages comnig into the queue.
I have only one listener instance listening on the queue from server side to process it. I do spawn up threads inside the listener as and when a message si received. But I doubtif it can handle these many at a time.
Is there a solution for this?
I tried creating say nearly listener instances on the same queue with a multi threaded program.
but when it receives a message in the queue, it's giving this error
"2002.02.27 11:39:31 MQJMS2002E failed to get message from MQ queue"
What could be the problem? I have tried in the net to find some decription about it but all in vein. Guys, help me!!
Can I spawn more than one listener instance all using the same selector tag, on the same queue? If it receives a message, will it be picked up by all of these listeners or only one of them? I know these are basic doubts, but it's really messing up my ideas about MQ.
It's URGENT!! HELP ME!!
regards
MNS |
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| abmanesh |
| Posted: Wed Feb 27, 2002 11:41 am Post subject: |
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Apprentice
Joined: 06 Nov 2001
Posts: 39
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In the JMS implementation connection is thread safe, but sessions and the
objects that are created from them are not thread safe. The recommended
practice for multi-threaded applications is to use a separate session for each
thread.
There is nothing that prevents from using multiple listeners on the same queue. It is more of a design consideration . If your requirement is to process messages in parallel when there are messages on the queue, yo could have one thread block on a sysnchronos QueueReceiver until a message arrives and then spawn other QueueReceivers to process the messages in parallel (just a thought!).
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| shubha6249 |
| Posted: Tue Oct 07, 2003 4:46 am Post subject: Did u get any solution for this? |
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Newbie
Joined: 27 Dec 2002
Posts: 4
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Hi
I am also having the same problem. Did u get any solution for this? If yes, either post it here or you can mail me at shubha6249@yahoo.com
Thanks
Shuby |
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| bower5932 |
| Posted: Tue Oct 07, 2003 11:08 am Post subject: |
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Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
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I'd like to see the linked exception:
| Code: |
} catch( JMSException je ) {
System.out.println("JMS Exception: " + je);
// check for a linked exception
Exception le = je.getLinkedException();
if (le != null) {
System.out.println("Linked exception: " + le);
}
}
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It should point to the underlying error which may or may not point to performance/scalability problems on the getting of messages. |
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