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MQSeries.net Forum Index » IBM MQ Installation/Configuration Support » Maximum number of channels

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pcrparimi
PostPosted: Sat Apr 27, 2002 7:06 am    Post subject: Reply with quote

Apprentice

Joined: 09 Oct 2001
Posts: 43
Location: NY

Hi,
Is there any limit on number of channels(sender & receiver) a MQ server can connect to?.

We have a central server(Tandem) wchich connects to around 50 severs and MQ is installed at all the servers. So is it okay if i have one QM at central server and having 100 channels(50 sender and 50 receiver).

Is there any issues related to performance?.

Thanks,
Poorna
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kolban
PostPosted: Sat Apr 27, 2002 2:00 pm    Post subject: Reply with quote

Grand Master

Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA

With this number of channels, no problems ... the problems start over 1000
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PeterPotkay
PostPosted: Sun Apr 28, 2002 6:19 pm    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

Make sure your MAXCHANNELS and MAXACTIVECHANNELS parameters are set appropriatly. I think the default is 100.


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Peter Potkay
Keep Calm and MQ On
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LuisFer
PostPosted: Sat Aug 17, 2002 1:21 pm    Post subject: Reply with quote

Partisan

Joined: 17 Aug 2002
Posts: 302

Hi:
Sorry for my bad english.
In my installation, in a Test env. (S74000 with 2 cpus, g06.10) we have connected 500 channels sdr/rcvr (total) without problems, sending every channel 1 msg/sec (no persistent) 2kb.
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jc_squire
PostPosted: Sun Aug 18, 2002 7:46 pm    Post subject: Reply with quote

Centurion

Joined: 14 Apr 2002
Posts: 105
Location: New Zealand

Depends on what system resources you have available. Obviously if all chls are running at the same time it will impact your system performance.

If you do have problems you can fine tune using MAXACTIVECHANNELS and also reduce your DISCINT on the chl def (bear in mind it uses resources to stop and start a chl).

Regards
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J C Squire
IBM Certified Specialist - MQSeries
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LuisFer
PostPosted: Sun Aug 18, 2002 11:56 pm    Post subject: Reply with quote

Partisan

Joined: 17 Aug 2002
Posts: 302

The two CPUS at 100% cte.
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vennela
PostPosted: Mon Aug 19, 2002 6:29 am    Post subject: Reply with quote

Jedi Knight

Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India

Using the disconnect interval is a nice idea. I am against the idea of using a disconnect interval 0.
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