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| poulter90 |
 Posted: Tue Jan 29, 2008 8:33 am Post subject: UNIX Performance with MQSeries |
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Apprentice
Joined: 31 Dec 2007
Posts: 36
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 Hi all ,
I am trying to find out which UNIX command could help to find what is the guilty process degrading MQseries Queue Managers throughout my server ?
Somebody gave me following commands :
ipcs -s -b" to display semaphores
"ipcrm -s <identifier>" to destroy them
Unfortunately display is not meaningful for me
(absolutely crap I should say !)
Any idea , URL ?
Thanks everybody |
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| Vitor |
| Posted: Tue Jan 29, 2008 8:46 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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Here's an idea - don't destroy semaphores unless you're certain of what you're doing! 
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Insanity is the best defence. |
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| Vitor |
| Posted: Tue Jan 29, 2008 8:47 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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Shouldn't your local Unix admin be able to assist? This is a Unix box resource problem not an MQ one IMHO.
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| jefflowrey |
| Posted: Tue Jan 29, 2008 8:47 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Did you try "top"?
What are the 'symptoms' of the performance degradation?
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I am *not* the model of the modern major general. |
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| poulter90 |
| Posted: Tue Jan 29, 2008 9:15 am Post subject: |
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Apprentice
Joined: 31 Dec 2007
Posts: 36
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Hi ,
Thanks a lot , I tried "top" quite good .
Besides , we asked for help to our Unix System support to look after
Some Queue managers were frozen ( too much client connection , I guess as when we disconnected from them , one more connection was possible )
Also when we recycled them ( in test environment ) we did not face anymore problems .
Thanks for your help |
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| fjb_saper |
| Posted: Tue Jan 29, 2008 3:08 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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This is not a performance problem. This is an application coding problem.
What is happening is that your application is not disconnecting properly and as such keeping the connection open and you are running out of connections.
Make sure the application correctly disconnects from the resources.
Enjoy 
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MQ & Broker admin |
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| poulter90 |
| Posted: Mon Feb 04, 2008 8:21 am Post subject: FIN_WAIT_2 tcp status |
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Apprentice
Joined: 31 Dec 2007
Posts: 36
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I can see daily a lot of FIN_WAIT_2 status
still running along with my Queue Managers ( while using netstat -an command)
Is there a magic command which could purge that odd connections ?
Thanks |
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| jefflowrey |
| Posted: Mon Feb 04, 2008 8:34 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| fjb_saper wrote: |
| Make sure the application correctly disconnects from the resources. |
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