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| MQ 2102 MQRC_RESOURCE_PROBLEM |
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| vivica12 |
 Posted: Wed Mar 19, 2008 7:30 am Post subject: MQ 2102 MQRC_RESOURCE_PROBLEM |
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Acolyte
Joined: 13 Jul 2007
Posts: 58
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I have an MQv 6.0.2.1 server running on AIX 5.3.
I have a developer that is using RFHutil, as well as a Websphere Java application (running on a 3rd machine) to connect to queues on this machine.
He is getting the 2102 MQRC_RESOURCE_PROBLEM, from the application, and then in testing a basic browse through RFHutil it shows
*Error cc=2 rc=2102 Cannot Open
A few minutes later it will work just fine. It will continue to work for a bit, and then the developer will get the error again.
I've been reading about this error, but an RFHutil browse seems so basic, that it couldn't be an application problem.
I have checked the AIX server resources, and only have around 100 established connections to the machine, and all other resources are very low.
Any thoughts on what could cause this, or what other 'resources' I could check? I am not getting anything specific in MQ logging when this happens.
thanks
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| fjb_saper |
| Posted: Wed Mar 19, 2008 2:45 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| vivica wrote: |
| I have checked the AIX server resources, and only have around 100 established connections to the machine, and all other resources are very low. |
I suspect that you have the standard number(100) of max channels defined for your qmgr.
To see the number of active channels use something like MO71 or
| Code: |
| echo dis chs(*) | runmqsc MYQMGR | grep CHANNEL| cat -n |tail -5 |
If you have 100 active channels, may be you need to up the max channels on your qmgr. Check it out in the qm.ini portion of the manual. Make sure as well that it is not due to poor programming (people not closing their connection after use)
Enjoy 
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| vivica12 |
| Posted: Wed Mar 19, 2008 5:23 pm Post subject: |
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Acolyte
Joined: 13 Jul 2007
Posts: 58
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We actually have it set for 1500 channels max. So that isn't an issue either, but a good thought that I hadn't looked at.
So I am not going to say this makes any sense, BUT, the app owner switched queues in their app. So originally the 2102 was showing up when running the app with 300 messages going to the queue A. Queue A would fail around 120 messages with the 2102. So the app owner decided to point to queue B. Well go figure, queue B worked like a charm with many more messages. Switch back to queue A, it fails.
So the resolution was that I deleted queue A and recreated it, and we haven't seen the issue since.
THIS IS WHAT DOESN'T MAKE SENSE. If you have any thoughts as to how to explain this, i'm all ears. I don't like a solution that has no reason.
It can't be a corrupt queue or queue file, cause I wouldn't think you could even put once to the queue.
Technically we resolved the issue, but I would love an explanation.
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| fjb_saper |
| Posted: Wed Mar 19, 2008 8:24 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Could have been an allocated corrupt block on the media. If it was allocated to the queue file this would make sense. A very bizarre occurrence but not completely impossible. Deleting and recreating the queue might have put the block in the bad block registry so that the recreated queue does not hit the same problem...
Enjoy
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