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| 2500 QM in a Cluster |
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| MQooch |
 Posted: Fri Apr 26, 2002 7:05 am Post subject: |
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Novice
Joined: 11 Dec 2001
Posts: 12
Location: Randy
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I have an environment that we send to and recv from 2450 QM's. We have about 16 seperate boxes with QM's as a central gathering place. Does it make sense to have this environment as one cluster?
Thanks,
Randy |
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| oz1ccg |
| Posted: Sat Apr 27, 2002 11:20 pm Post subject: |
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Yatiri
Joined: 10 Feb 2002
Posts: 628
Location: Denmark
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Hi Randy,
In your case with 2400+ QueueManagers, you will be able to eliminate a lot admiinistration, think of all the channel-definitions incluing XmitQueues etc.
One of things that could cause some problems would be that all 2400+ QueueManagers all would connect to the 16 servers (if they all hosts the server queues), but I remember some time ago an IBM'er(John Jones) described how to deal with this scenario, I guess it worth take look on this link:
http://www-4.ibm.com/software/ts/mqseries/txppacs/supportpacs/md05.pdf
Well I know it's a bit old, but I still thing John' consideration is ok.
_________________
Regards, Jørgen
Home of BlockIP2, the last free MQ Security exit ver. 3.00
Cert. on WMQ, WBIMB, SWIFT. |
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| EddieA |
| Posted: Fri May 03, 2002 12:31 pm Post subject: |
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Jedi
Joined: 28 Jun 2001
Posts: 2453
Location: Los Angeles
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One thing to bear in mind. If you decide to define more than 2 full Repositories, then each Repository MUST be connected to EVERY other Repository with MANUALLY DEFINED channels. It will not work correctly if you let the Cluster define these Repository to Repository channels for you.
Cheers,
_________________
Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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| jhiemstra |
| Posted: Thu May 09, 2002 4:48 am Post subject: |
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Newbie
Joined: 27 Mar 2002
Posts: 6
Location: The Economical Insurance Group, Canada
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| I'm just curious, what kind of application requires 2400+ Queue managers. |
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| nimconsult |
| Posted: Tue Jun 11, 2002 12:48 am Post subject: |
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Master
Joined: 22 May 2002
Posts: 268
Location: NIMCONSULT - Belgium
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One performance point to keep in mind: MQ Series clusters use a single transmission queue.
This may be significant in case of high throughput: all the sender channels read a single transmission queue; they use the correlation id to distinguish the different message destinations but they will all scan the single transmission queue to find their respective messages (apart from OS/390 where queues can be indexed, reducing this performance impact).
Another point is the criticality of the cluster repositories but it is difficult to have a real opinion without knowing your specific topology.
_________________
Nicolas Maréchal
Senior Architect - Partner
NIMCONSULT Software Architecture Services (Belgium)
http://www.nimconsult.be |
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