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| mirakal |
 Posted: Wed Sep 19, 2007 1:01 pm Post subject: mq/mqsi tuning |
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Novice
Joined: 19 Sep 2007
Posts: 11
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It would be glad if someone can suggest me any idea on how to tackle a performance issue we are facing here..
1) 2 brokers on windows(having CFMGR on the brkr itself) and in mq cluster talk to mainframe qmgr(also included in the cluster).
we have WAS on windows along with JMS bindings serving the apps..
our CPU was never above 20%....and no resources problem ever...
but still we have a problem with some flows/messages from an app takin 20 secs or more.....
but the flows are straight forwrd(convertin XML-->COBOL and vice versa)
all are on windows (broker V5.X,mq v5.3 and WAS 4.x)...
for starters what should we be looking at and are they tuning parametres on mq side to be turned on....
thx... |
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| jefflowrey |
| Posted: Wed Sep 19, 2007 1:11 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Upgrade that WAS.
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| fjb_saper |
| Posted: Wed Sep 19, 2007 2:41 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| jefflowrey wrote: |
| Upgrade that WAS. |
Upgrade: WAS, MQ and Broker and all will go faster. Read up on performance improvements of Broker V6 vs V5....
BTW isn't WAS 4.X out of support?
MQ 5.3 will be out of support in 4 days...
Enjoy 
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| PeterPotkay |
| Posted: Wed Sep 19, 2007 3:06 pm Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| fjb_saper wrote: |
MQ 5.3 will be out of support in 4 days...
Enjoy |
C'mon, don't worry the guy needlessly. He's got 8 days actually!
http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg21244334
But seriously, just upgrade (while the right thing to do for other reasons and quite maybe even for this performance problem reason) is a cop out. If there is a problem in the esql or a design flaw its still going to be there in 6.0. What's the answer then, wait for Version 7.0? 
But alas, I don't know what to suggest as I am just getting my feet wet with this WMB stuff myself.
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Peter Potkay
Keep Calm and MQ On |
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| Vitor |
| Posted: Wed Sep 19, 2007 10:37 pm Post subject: Re: mq/mqsi tuning |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| mirakal wrote: |
but still we have a problem with some flows/messages from an app takin 20 secs or more.....
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Have you run the flows in isolation? Or identified where the 20 seconds is being spent by other means?
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| jefflowrey |
| Posted: Thu Sep 20, 2007 4:09 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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| PeterPotkay wrote: |
| But seriously, just upgrade (while the right thing to do for other reasons and quite maybe even for this performance problem reason) is a cop out. If there is a problem in the esql or a design flaw its still going to be there in 6.0. What's the answer then, wait for Version 7.0? |
There are significant performance improvements in both MQ v6 and Broker v6. And there have to be the same between v4 and v6 of WAS, too. Well. I'd hope.
They won't, as you say, eliminate poorly designed systems or badly written code. But if an upgrade solves the SLA problem, that provides more time to characterize and rewrite/redesign the actual problem.
From the description of the flows, though, my crystal ball says that the problem isn't in Broker. It's more likely that it's a resource issue - the Broker box is under powered for the work it's being done. Or it's a larger infrastructure issue - that the components of the total system (WAS, MQ, Broker) are not implemented in ways to provide good performance.
These take at least as long to solve as redesiging the code. But, again, upgrade helps.
And running that version of WAS is equivalent to running version 2.0 of MQSI.
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| mirakal |
| Posted: Sun Sep 23, 2007 2:41 pm Post subject: |
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Novice
Joined: 19 Sep 2007
Posts: 11
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They are planning to upgrade WAS 6.x on AIX and are agreeing up on MQV6.0 too but still want to stick to WBIMB v5.x and to stay on windows plaform only...will that still be a problem regarding performance or shall I insist on getting broker too the latest version and AIX for it....help me with your experiences on having multiple OS for an app-->mqsi/mq-->zos
and vice versa....thanks for the info.. |
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| jefflowrey |
| Posted: Sun Sep 23, 2007 2:46 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Well, despite the advice to upgrade everything... you can't really make informed decisions about performance optimizations until you know what the performance requirements are.
And then you can't decide where to tune without knowing where things are running slowly.
So once the upgrades are performed, you need to spend some time gathering data and analyzing it to determine if the performance of MQ or the Broker is actually causing an issue.
Then you can hopefully figure out if the issue is caused by a) the message flows, b) Broker itself, c) MQ itself, or d) the implementation of Broker and MQ on a particular platform with a particular design.
Then you will know what needs to be tuned, and can start thinking about how to tune it. And hopefully know how much to tune it, too.
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| fjb_saper |
| Posted: Sun Sep 23, 2007 5:44 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| mirakal wrote: |
They are planning to upgrade WAS 6.x on AIX and are agreeing up on MQV6.0 too but still want to stick to WBIMB v5.x and to stay on windows plaform only...will that still be a problem regarding performance or shall I insist on getting broker too the latest version and AIX for it....help me with your experiences on having multiple OS for an app-->mqsi/mq-->zos
and vice versa....thanks for the info.. |
My gut feeling says go with AIX, MQ 6.0.2.2 WMB 6.0.0.5 with toolkit 6.0.2.x ifix 9 on windows.
But then again you can't really make the decision of windows vs Unix for the broker without doing some testing and checking the IBM performance reports...
You should as well have IBM help you with the sizing...
Enjoy
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