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| Basic question on clustering |
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| sac063 |
 Posted: Wed Jul 28, 2004 10:09 am Post subject: Basic question on clustering |
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Apprentice
Joined: 23 Jan 2004
Posts: 36
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What are the factors that one needs to consider when deciding if clustering is required?
I have to make about 24 legacy systems talk to the message broker. I can see altogether about 28 queue managers in my entire setup located across different locations. Do I need to cluster these queue managers? Does the requirement for clustering depend on the number of queue managers that one has to deal with? |
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| oz1ccg |
| Posted: Thu Jul 29, 2004 2:12 am Post subject: |
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Yatiri
Joined: 10 Feb 2002
Posts: 628
Location: Denmark
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Hi there,
As I see it, the real demand for mq-clustering is when workload-balancing is wanted.
28 or 50 or even more qmgrs don't require that you are using MQ-clustering, well MQ-clustering makes it a bit easier to do the administration task because WebSphere MQ automaticly defines the needed channels between the queuemanagers in the cluster. This is also true for defining remotequeues.
My advise to you will be, before starting playing with MQ-clustering in you production environment, be shure that you know how to deal with various situation in MQ-clustering. Create an test environment, and try add and remove both repository and non repository queue managers, and see what happens when you don follow the path (exactly) as stated in the MQ-clustering manual.
I hope this might light a small candle 
Just my $0.02 
_________________
Regards, Jørgen
Home of BlockIP2, the last free MQ Security exit ver. 3.00
Cert. on WMQ, WBIMB, SWIFT. |
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| sac063 |
| Posted: Thu Jul 29, 2004 2:25 am Post subject: |
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Apprentice
Joined: 23 Jan 2004
Posts: 36
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That certainly cleared a few things.
Thanks a lot  |
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| rajeshavrs |
| Posted: Fri Jul 30, 2004 3:15 pm Post subject: |
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Novice
Joined: 15 Jun 2004
Posts: 10
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Just a piece of advice...
Also consider the number of queues that would be shared in the cluster... if it one or two queues only that are to be shared from each queue manager, you are better off using remote queue definitions (thought it is cumbersome for the administrators)
Clustering could be a real pain to troubleshoot especially in production environments... |
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