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| saneben |
 Posted: Wed Aug 16, 2017 2:55 am Post subject: read ahead performance advantages |
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Voyager
Joined: 04 Apr 2004
Posts: 96
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we have been asked to use the read ahead performance advantages for non-persistent messages.
While the client programs are changed on some machines to specify the MQOO_READ_AHEAD
option, some other machines have to run the existing client application code without that option for
a certain period of time.
to support the coexistence of the two different versions of the client application
can we set the below property
SHARECNV(0) on the SVRCONN channel
DEFREADA(YES) for the queues
https://www.ibm.com/support/knowledgecenter/en/SSFKSJ_8.0.0/com.ibm.mq.dev.doc/q026310_.htm |
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| exerk |
| Posted: Wed Aug 16, 2017 4:50 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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So which bit of the KC article are you unclear about?
I am assuming that you'll have different SVRCONN channels per application type.
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| saneben |
| Posted: Wed Aug 16, 2017 7:53 am Post subject: |
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Voyager
Joined: 04 Apr 2004
Posts: 96
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hi,
Thanks for your reply.
As you mentioned we have different SVRCONN channels per application type
Since we have multiple versions of clients is the below setting sufficient
SHARECNV(0) on the SVRCONN channel
DEFREADA(YES) for the queues
Regards |
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| exerk |
| Posted: Wed Aug 16, 2017 8:17 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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Again, which bit of the KC article are you unclear about?
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys. |
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| PaulClarke |
| Posted: Wed Aug 16, 2017 9:11 pm Post subject: |
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Grand Master
Joined: 17 Nov 2005
Posts: 1002
Location: New Zealand
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A value of SHARECNV(0) will prevent READ_AHEAD from working
_________________
Paul Clarke
MQGem Software
www.mqgem.com |
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