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| getting message from cluster queue |
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| rkford11 |
 Posted: Mon Sep 20, 2004 2:49 pm Post subject: getting message from cluster queue |
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Partisan
Joined: 06 Jun 2004
Posts: 316
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I have 2 qmgrs qm1 and qm2 which are in a cluster. i have queues A and B on qm1 and qm2 respectively defined as cluster queues, can i get the message from queue A using qm2 even if the other qmgr qm1 is down.
I know we can put but what about get?
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| jefflowrey |
| Posted: Mon Sep 20, 2004 3:19 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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You can never ever get from a remote queue.
If qmgr1 is the only queue manager that hosts queueA, and qmgr1 is down, nobody can get any messages from it.
If qmgr1 is not the only queue manager that hosts queueA, and qmgr1 is down, then other applications can still get messages from queueA.
But all the messages on queueA on qmgr1 are unavailable.
Clustering IS NOT failover.
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I am *not* the model of the modern major general. |
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| rkford11 |
| Posted: Mon Sep 20, 2004 3:27 pm Post subject: |
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Partisan
Joined: 06 Jun 2004
Posts: 316
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| jefflowrey wrote: |
You can never ever get from a remote queue.
If qmgr1 is the only queue manager that hosts queueA, and qmgr1 is down, nobody can get any messages from it.
If qmgr1 is not the only queue manager that hosts queueA, and qmgr1 is down, then other applications can still get messages from queueA.
But all the messages on queueA on qmgr1 are unavailable.
Clustering IS NOT failover. |
the queue is not a remote queue but a cluster queue. so how to connect to other qmgr and get messages from the cluster queue |
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| jefflowrey |
| Posted: Mon Sep 20, 2004 4:09 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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If it's not a qlocal on the queue manager you are connected to, it's a remote queue.
If the queue manager is down, messages on all queues on that queue manager are unavailable.
In your setup, there is no way for an application that is connected to qmgr B to GET messages from queues defined on qmgr A. In ANY setup there is NO WAY for an application to GET messages from queues that are NOT local queues.
That's all there is to it.
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I am *not* the model of the modern major general. |
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| rkford11 |
| Posted: Tue Sep 21, 2004 5:15 am Post subject: |
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Partisan
Joined: 06 Jun 2004
Posts: 316
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| jefflowrey wrote: |
If it's not a qlocal on the queue manager you are connected to, it's a remote queue.
If the queue manager is down, messages on all queues on that queue manager are unavailable.
In your setup, there is no way for an application that is connected to qmgr B to GET messages from queues defined on qmgr A. In ANY setup there is NO WAY for an application to GET messages from queues that are NOT local queues.
That's all there is to it. |
Thank you Jefflowrey for giving me a clear concept of cluster queues and qmgrs. |
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