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| Limit on the 'IPPROCS' & 'OPPROCS' |
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| Mallik |
 Posted: Thu Sep 30, 2004 1:52 pm Post subject: Limit on the 'IPPROCS' & 'OPPROCS' |
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Acolyte
Joined: 29 Feb 2004
Posts: 53
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Can some one please tell me if there is a limit on the 'IPPROCS' & 'OPPROCS' for the queues.
For one of our queues we have more than 600 open handles as shown below.
5 : DIS QS(*******)
AMQ8450: Display queue status details.
QUEUE(*******) IPPROCS(1)
OPPROCS(605) CURDEPTH(0)
UNCOM(NO)
The reason for having so many handles is that the application is not closing the queue and performing new opens for each request, which our developer is looking into it. I am just trying to understand if there is a limit at QMGR level or is it some thing related to Operating system, beyond which new request to open the queue fails.
from the manual:
| Quote: |
MAXHANDS(integer)
The maximum number of open handles that any one task can have at the
same time. |
How is the MAXHANDS related to the IPPROCS & OPPROCS.
The QMGR has a MAXHANDS(256).
Thanks. |
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| vennela |
| Posted: Thu Sep 30, 2004 1:58 pm Post subject: |
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Jedi Knight
Joined: 11 Aug 2002
Posts: 4055
Location: Hyderabad, India
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AFAIK there is no MQ limit on the OPPROCS and OPPROCS.
You can find out the PIDs that are keeping the queue open with the same command you used but by specifying that you want PID |
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| siliconfish |
| Posted: Thu Sep 30, 2004 2:28 pm Post subject: |
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Master
Joined: 12 Aug 2002
Posts: 203
Location: USA
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MAXHANDS refers to the maximum number of objects that a "single connection" can have open at the same time. So, if an application thread issues an MQOPEN for a queue, that counts as 1, and so on for each queue that is opened in that thread. A separate thread in the same or in a different process also has its own MAXHANDLES objects that it can open. The total number of handles for a queue, i.e. the number of apps that have a queue open, is not related to MAXHANDLES.
IPPROCS/OPPROCS
Number of handles indicating that the queue is open for input/output.
So each handle in IPPROCS/OPPROCS is counted as using one of the available number of MAHHANDS and for a specific single connection.
(I think the number of connections a queue manager can handle is around 65000 - may be its for the client, had to refer to the manual) |
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