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| Number of topic based subscriptions in WBIMB |
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| x061294 |
 Posted: Fri Jul 22, 2005 6:08 am Post subject: Number of topic based subscriptions in WBIMB |
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Acolyte
Joined: 05 Apr 2005
Posts: 62
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Using Pub/Sub on WBIMB 5.0.4, running on Windows right now, but the question is in general.
I'm curious the maximum number of subscriptions any one is currently running in broker? I'm looking at the possibility of needing to run many thousands of topic based subscriptions, and wondered how many anyone had implemented. I'm checking with IBM, but wondered about the real world environment as well.
The support pac goes as high as 1000, but that wouldn't be near enough to support my needs.
Anyone running 5, 10, 100 thousand subscriptions? On what platform, and, with what performance? What tuning should I be looking at?
Appreciate any information. |
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| PeterPotkay |
| Posted: Fri Jul 22, 2005 7:22 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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I will be curious of the answer as well, but want to know are you considering MQ as the transport for the Pub Sub messages, or TCP/IP / HTTP, or both?
_________________
Peter Potkay
Keep Calm and MQ On |
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| x061294 |
| Posted: Fri Jul 22, 2005 8:19 am Post subject: |
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Acolyte
Joined: 05 Apr 2005
Posts: 62
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Considering MQ.
I've talked to folks in and out of IBM before on this and heard numbers approaching 5000, but I have the potential for 10 or more times that, so I wondered what others had tried. IBM tout's the stock market example (1 person subscribing to IBM, one to Microsoft, one to IBM but only if it cross's $50's, etc) as an example of pub/sub, but I wondered if anyone had ever taken them up on that (day traders subscribing to all the stocks they care about for example) and implemented something along those lines. |
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| bower5932 |
| Posted: Fri Jul 22, 2005 11:39 am Post subject: |
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Jedi Knight
Joined: 27 Aug 2001
Posts: 3023
Location: Dallas, TX, USA
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I know that the Event Broker people were talking about publish/subscribe and the Wimbledon web-site. Apparently the real-time score updates were handled as publishes to subscribed users. I don't know of any statistics regarding how many subscribers were ever on at a given moment in time.
These subscribers would have been non-durable and probably used the Real-timeInput or Real-timeOptimizedFlow since neither of them actually requires WMQ queues. |
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