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| Slow processing from JMS to MQ pub/sub |
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| roshan.171188 |
 Posted: Thu Jan 30, 2014 12:46 pm Post subject: Slow processing from JMS to MQ pub/sub |
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Apprentice
Joined: 07 Jun 2012
Posts: 35
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Hi Experts,
We have an issue where an application is publishing messages to a MQQueue from where it is routed to subscribers.
The throughput normally is 4-5 pubs/sec but recently there was a delay noticed where messages were being published per 1 message/2-3 secs.
We also noticed error as below but no FDC's generated
(Failed to attach shared memory segment: shmat(ShmId 0x00000056) [rc=-1 errno=12] Not enough space).
Any inputs on resolving this? Bouncing the MQ is not an option right now.
MQ version 6 (I know!!)
OS - Solaris. |
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| fjb_saper |
| Posted: Fri Jan 31, 2014 6:52 am Post subject: Re: Slow processing from JMS to MQ pub/sub |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| roshan.171188 wrote: |
Hi Experts,
We have an issue where an application is publishing messages to a MQQueue from where it is routed to subscribers.
The throughput normally is 4-5 pubs/sec but recently there was a delay noticed where messages were being published per 1 message/2-3 secs.
We also noticed error as below but no FDC's generated
(Failed to attach shared memory segment: shmat(ShmId 0x00000056) [rc=-1 errno=12] Not enough space).
Any inputs on resolving this? Bouncing the MQ is not an option right now.
MQ version 6 (I know!!)
OS - Solaris. |
Try and recycle the applications. It shoud free the mem segments... 
_________________
MQ & Broker admin |
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| roshan.171188 |
| Posted: Fri Jan 31, 2014 6:58 am Post subject: |
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Apprentice
Joined: 07 Jun 2012
Posts: 35
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Hello fjb_saper,
Recycle is a solution to 99% of the problems. But if it wud have been so easy to just recycle applications and MQ without an impact, this site would not have existed , |
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| fjb_saper |
| Posted: Fri Jan 31, 2014 7:08 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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It might be easier to recycle the applications than recycling the qmgr...
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MQ & Broker admin |
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| Vitor |
| Posted: Fri Jan 31, 2014 7:15 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| roshan.171188 wrote: |
| Recycle is a solution to 99% of the problems. |
Unless it's a problem with application coding, software administration, topology, design....
| roshan.171188 wrote: |
| this site would not have existed , |
Yes it would. 
And if you've got locked memory segements, recycling the applications (or WMQ) is a recommended solution. If you don't believe us, ask the sys admin for that box to release them manually using OS commands.
Then run before they lynch you.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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