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| mqsi |
 Posted: Tue Apr 18, 2006 11:49 pm Post subject: MaxActiveChannels |
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Apprentice
Joined: 11 Jun 2004
Posts: 33
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| What is the limit for MaxActiveChannels for WMQ5.3 in Solaris environment. We have not set the limit. Can someone let me know the default value of MaxActive channels |
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| Mr Butcher |
| Posted: Wed Apr 19, 2006 12:26 am Post subject: |
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Padawan
Joined: 23 May 2005
Posts: 1716
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the answer is written in the system administration guide
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Regards, Butcher |
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| mrlinux |
| Posted: Wed Apr 19, 2006 3:23 am Post subject: |
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Grand Master
Joined: 14 Feb 2002
Posts: 1261
Location: Detroit,MI USA
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Most case's it 100
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Jeff
IBM Certified Developer MQSeries
IBM Certified Specialist MQSeries
IBM Certified Solutions Expert MQSeries |
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| jefflowrey |
| Posted: Wed Apr 19, 2006 3:52 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| mrlinux wrote: |
| Most case's it 100 |
Is it different on z/OS?
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I am *not* the model of the modern major general. |
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| mrlinux |
| Posted: Wed Apr 19, 2006 3:54 am Post subject: |
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Grand Master
Joined: 14 Feb 2002
Posts: 1261
Location: Detroit,MI USA
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Well we werent talking about Z/os and like I posted most case's
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Jeff
IBM Certified Developer MQSeries
IBM Certified Specialist MQSeries
IBM Certified Solutions Expert MQSeries |
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| jefflowrey |
| Posted: Wed Apr 19, 2006 3:57 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Yeah, I know. I'm not trying to hassle or anything... I just don't know of a case where it's not 100, off the top of my head.
So I'm curious.
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| fjb_saper |
| Posted: Wed Apr 19, 2006 4:49 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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We run 5.3.1 on Zos with CAF and up to 200 + client connections.
Our max active was set up to 500 + as most of the stations hold at least 2 connections. One for the person working at the station + 1 for a program running at the station.
Enjoy 
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MQ & Broker admin |
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| mqsi |
| Posted: Sat Apr 22, 2006 12:07 am Post subject: |
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Apprentice
Joined: 11 Jun 2004
Posts: 33
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The number of SYSTEM.DEF.SVRCONN channels RUNNING is around 500 in production. I haven't set the MAXCHANNEL and MAXACTIVECHANNEL attirbutes in the queue manager.
What is the max limit that one can set for the above attributes.
Also, what is the ratio of MAXCHANNEL to MAXACTIVECHANNEL. |
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| fjb_saper |
| Posted: Sat Apr 22, 2006 4:57 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Don't know as the MainFrame aspects are being handled by our service provider...
However I believe it is a bad practice to have everybody connect through the SYSTEM.DEF.SVRCONN channel. You should at least distingish the channels by application. This way if you have a problem after upgrade or a selective net glitch you can force off the specific application by stopping their channel mode(force) without impacting the other well behaved ones...
Enjoy
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| PeterPotkay |
| Posted: Sat Apr 22, 2006 6:42 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| mqsi wrote: |
| What is the max limit that one can set for the above attributes. |
You'll never get an hard answer. It depends. I have researched this, trying to get IBM to commit to a hard number. They won't. It depends more on the hardware. You'll hit hardware limits before you hit any MQ internal limits appareantly. I have QMs with 2500 channels running (lots of clients). The Performance Support Packs talk of 12,000 channels in some cases.
| mqsi wrote: |
| Also, what is the ratio of MAXCHANNEL to MAXACTIVECHANNEL. |
Doesn't matter. You may only want 100 channels defined ever, but allow up to 2000 instances at anyone time, so MAXCHANNEL=100 and MAXACTIVECHANNEL=2000. Or, you may want to have 1000 different channels defined, but for some reason only allow 50 to run at a time, so MAXCHANNEL=1000 and MAXACTIVECHANNEL=50.
Usually though, Max Active Channels is larger than Max Channels.
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Peter Potkay
Keep Calm and MQ On |
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