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boogey
PostPosted: Wed Aug 22, 2007 2:39 pm    Post subject: Messsage broker scaling Reply with quote

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Joined: 01 Jan 2007
Posts: 21

Can anyone please explain about the scaling with respect to the message broker?
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jefflowrey
PostPosted: Wed Aug 22, 2007 3:47 pm    Post subject: Reply with quote

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Joined: 16 Oct 2002
Posts: 19981

Depending on your business requirements, and your budget, Message Broker can be scaled horizontally, and vertically.

It can also be tuned within a single node by varying the number of threads and execution groups you assign to a particular flow.

So, in short... Message Broker is very scalable.

Unless you design your flows not to be.

Everything else is left as an exercise to the searcher.
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boogey
PostPosted: Wed Aug 22, 2007 9:28 pm    Post subject: Reply with quote

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Joined: 01 Jan 2007
Posts: 21

Thanks Jeff, How does the messge broker scaled horizontally , vertically?
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fjb_saper
PostPosted: Wed Aug 22, 2007 11:27 pm    Post subject: Reply with quote

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Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

boogey wrote:
Thanks Jeff, How does the messge broker scaled horizontally , vertically?

First you can scale by running additional instances of the flow in your execution group. Then you can scale by running the same flow in multiple execution groups. Finally you can scale by load balancing your flows in an MQ Cluster of brokers...
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Ian
PostPosted: Thu Aug 23, 2007 2:12 am    Post subject: Reply with quote

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Joined: 22 Nov 2002
Posts: 152
Location: London, UK

And then there are the Websphere Message Broker Performance Reports that discuss scaling ...
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zpat
PostPosted: Thu Aug 23, 2007 4:37 am    Post subject: Reply with quote

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Joined: 19 May 2001
Posts: 5866
Location: UK

We have a 12 CPU AIX box running WBIMB. It has been driven to 100% cpu at certain times, so that's a good sign of scalability.

Some flows will be I/O bound (heavy DB access) so depends on your SAN performance.

Others just need CPUs to keep them happy. You can only really estimate the characteristics until you can benchmark your own flows.

There is a fair amount of tuning possible with the flows, especially if you have lots of ESQL.
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