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| Does MQ/JMS support clustering? |
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| eswarnv |
 Posted: Mon Mar 04, 2002 11:17 am Post subject: |
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Voyager
Joined: 20 Dec 2001
Posts: 88
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Hi All,
I have q local queue manager in which i have a cluster queue which is pointing to queue of another queue manager. When i am trying to put a message to cluster queue using MQ-Base java its working fine, But whenver iam trying to work with MQJMS its giving "MQ Queue failed to Open" error. Is it problem with MQJMS or..
I required it very desparately. kindly help me.
Thanks
eswar
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| bduncan |
| Posted: Mon Mar 04, 2002 1:18 pm Post subject: |
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Padawan
Joined: 11 Apr 2001
Posts: 1554
Location: Silicon Valley
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First off, clustering is supported by JMS, in that the cluster is irrelevant to the JMS API. Basically an application using JMS is communicating to a queue manager, and it is the queue manager, not the JMS API that deals with cluster queues versus plain old queues. That being said, I don't really understand how your MQ cluster is configured from looking at your post. You say you have a cluster queue on the local queue manager that is pointing to a local queue on another queue manager. This doesn't make sense. If you replace the word "cluster" with the word "remote", then the statement would be true. You are basically describing exactly how remote queues work. In other words, your application connects to the local queue manager, puts the message to a remote queue definition, and then the local queue manager resolves the local instance of that queue (which resides on some other queue manager usually) and sends the message on its way. When dealing with cluster queues, you don't need a local definition of a queue. If there is a clustered queue on some queue manager 'A', and your application connects to queue manager 'B', you should be able to put a message to the clustered queue on 'A', without having to have any references to or definitions of the queue on queue manager 'B'.
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Brandon Duncan
IBM Certified MQSeries Specialist
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