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| WAS Connection Pool and OPPROCS |
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| mqkar |
 Posted: Sat Apr 09, 2011 12:39 am Post subject: WAS Connection Pool and OPPROCS |
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Newbie
Joined: 05 Apr 2011
Posts: 5
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Hello,
In order to determine the relationship between pooled connections in WebSphere Application Server and IPPROCS/OPPROCS values on a queue I wrote a one servlet web application which just opens a connection to a queue, posts a message and then closes the connection.
During deployment connection pooling was enabled, and various timeouts values set as per WAS infocenter.
When I invoke the servlet, it does its part and puts the message.
WAS does its thing and pools the connection behind the scenes without actually closing it (I verified the pool size).
But the OPPROCS and IPPROCS value is zero on the queue 
So, WAS/JMS did not yet do MQCLOSE, but OPPROCS was decremented.
Any idea what's happening? Is OPPROCS decremented as soon as MQPUT completes?
Both WMQ and WAS are at v6 in this setup.
Thank you..
Kar |
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| fjb_saper |
| Posted: Sat Apr 09, 2011 7:55 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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This is expected behavior. If you have a client connection you would see the channels being open.
The queue values mean that in JMS you would have a session with a consumer (ipprocs), or producer (opprocs) in a valid state (not closed), and propably a started connection (ipprocs).
Have fun 
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| mqkar |
| Posted: Sun Apr 10, 2011 12:17 am Post subject: |
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Newbie
Joined: 05 Apr 2011
Posts: 5
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Oh cool..Thanks!
Is this also true if I am putting a message onto a clustered queue?
Will the clustered queue show no OPPROCS increase too?
Thanks,
Kar |
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| fjb_saper |
| Posted: Sun Apr 10, 2011 1:52 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| mqkar wrote: |
Oh cool..Thanks!
Is this also true if I am putting a message onto a clustered queue?
Will the clustered queue show no OPPROCS increase too?
Thanks,
Kar |
Depends. Clustered queue complicates things a lot. Looking at ipprocs it is the same but for opprocs it vastly depends whether the instance being put to is local or remote...
Have fun
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| mqjeff |
| Posted: Sun Apr 10, 2011 7:11 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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Any kind of MQOPEN on a remote object always ends up doing an MQOPEN on the necessary transmit queue.
Do not confuse connections to queue managers with open handles to queues. Just because you have an active connection to a queue manager does not mean you have any open handles to a queue. |
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