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| How to change Durable Sub Queue |
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| kun.leeing |
 Posted: Fri Jun 12, 2009 12:32 am Post subject: How to change Durable Sub Queue |
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Disciple
Joined: 27 Sep 2008
Posts: 171
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Hi, everybody.
I have two questions.
1. I want to use exclusive sub queue for my application and used code
| Code: |
| cf.SetStringProperty(WMQConstants.WMQ_BROKER_DUR_SUBQ, "SYSTEM.JMS.D.MYTEST.QUEUE"); |
But after executing 'createDurableSubscriber()' and 'connection.start()' it still used the default durable subscribing queue 'SYSTEM.JMS.D.SUBSCRIBE.QUEUE'. It did not use the queue I specified.
Then , I change my code using the method of 'topic://mytopic?BrokerDurSubQueue=SYSTEM.JMS.D.MYTEST.QUEUE&BrokerVersion=1' and the same result occured.
How can I set my own broker durable subq?
2. And another question, I used XMS Lib for C++ to make my subscriber and change default DurSubQ to my own by the same pattern, it works.
I can set the queue name by using the same property(WMQ_BROKER_DUR_SUBQ). But There's also a problem that it will not get any message on the queue specified if I set the param of selector. If I don't use selector, it will work correctly.
But I really need the selector for my durable subscription. How can I do for it?
Thanks, experts. |
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| fjb_saper |
| Posted: Sat Jun 13, 2009 5:20 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Question 1 changing the durable subscription queue.
Changing the destination to where the subscription is delivered is a change in the subscription. So you have to either remove the subscription and subscribe again or change the subscription.
Question 2 : Changing the default changes all dur subscription queues. Of course doing that with the qcf will specify a subscription queue for ALL the subscriptions for that subscriber... If you want a subscription specific queue you need to provide for it in the topic object you subscribe to.
Maybe this will avoid you having to use a selector. Using a selector there, especially for versions below version 7 is not a smart thing to do and WILL impact performance.
Have fun 
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| kun.leeing |
| Posted: Sun Jun 14, 2009 6:39 am Post subject: |
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Disciple
Joined: 27 Sep 2008
Posts: 171
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Thanks, saper for your response. 
I'll think over it again. |
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