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| MQ Cluster Design |
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| objectthinker06 |
 Posted: Wed Apr 07, 2010 7:49 pm Post subject: MQ Cluster Design |
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Joined: 15 Aug 2006
Posts: 15
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There are two Java/JMS applications: A (Sender App) and B (Receiver App) integrated using WMQ v7.0.1 with QMGR.A and QMGR.B respectively. Both the q mgrs are in a cluster CLS.T. There is a local queue LQ1 on both q mgrs and are shared in the cluster CLS.T. My question is would this enable messages sent by app A be received by app B? If yes, how? and how can work load balancing be enabled?
I tried the following setup which is more logical to understand and it works. However, I'm not sure how load balancing can be enabled?
a) QMGR.A and QMGR.B are in cluster CLS.T
b) Created Remote Q defn. for LQ1 on QMGR.A
c) Created Local Q for LQ1 on QMGR.B
d) Messages put by app A on the remote Q: LQ1 make it to app B
Which design is recommended? If this design has to scale horizontally - say on application B side by adding one more machine then do we create the q mgr with the same name i.e. QMGR.B on the newly added machine and join them to the cluster CLS.T?
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| exerk |
| Posted: Wed Apr 07, 2010 9:18 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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EDIT: Just re-read the post, so...
| objectthinker06 wrote: |
There are two Java/JMS applications: A (Sender App) and B (Receiver App) integrated using WMQ v7.0.1 with QMGR.A and QMGR.B respectively. Both the q mgrs are in a cluster CLS.T. There is a local queue LQ1 on both q mgrs and are shared in the cluster CLS.T. My question is would this enable messages sent by app A be received by app B? If yes, how? and how can work load balancing be enabled?
I tried the following setup which is more logical to understand and it works. However, I'm not sure how load balancing can be enabled?
a) QMGR.A and QMGR.B are in cluster CLS.T
b) Created Remote Q defn. for LQ1 on QMGR.A
c) Created Local Q for LQ1 on QMGR.B
d) Messages put by app A on the remote Q: LQ1 make it to app B |
I don't think you understand clustering properly. If app A is only on server A, remove the LQ1 queue instance on server A. As the only instance of LQ1 is then on server B, the messages have only one destination and the cluster resolves where that destination is so no QREMOTE is required.
| objectthinker06 wrote: |
| Which design is recommended? |
What do you mean, design? You haven't stated any designs, just stated what you have done.
| objectthinker06 wrote: |
| If this design has to scale horizontally - say on application B side by adding one more machine then do we create the q mgr with the same name i.e. QMGR.B on the newly added machine and join them to the cluster CLS.T? |
Don't EVER try to put two queue managers of the same name in the same cluster, not unless you want the mother of all messes to try and clear up! You add QMGR.C and create an instance of LQ1 in that queue manager, and share it in the cluster. The cluster work load algorithm will do the rest provided you have the DEFBIND attribute correctly set.
Please re-read the Clustering manual, and follow through on some of the examples.
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| bruce2359 |
| Posted: Thu Apr 08, 2010 3:36 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Moved to Clustering forum.
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Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| sumit |
| Posted: Thu Apr 08, 2010 8:16 am Post subject: Re: MQ Cluster Design |
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Partisan
Joined: 19 Jan 2006
Posts: 398
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| objectthinker06 wrote: |
| My question is would this enable messages sent by app A be received by app B? If yes, how? and how can work load balancing be enabled? |
What do you mean by load balacing here? If your only requirement is to send message from app A (one qmgr) to app b (another qmgr) then it doesn't need load balancing.
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Sumit |
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| bruce2359 |
| Posted: Thu Apr 08, 2010 9:14 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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and it doesn't need clustering.
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I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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