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| Message exits on zOS / WMQ 5.3 |
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| moratm |
 Posted: Wed Mar 19, 2003 1:27 am Post subject: Message exits on zOS / WMQ 5.3 |
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Newbie
Joined: 19 Mar 2003
Posts: 1
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Hi,
With a MCA running on zOS in a non CICS env, is it possible for a [b]message exit [/b]written in C to start a CICS transaction ?
Thanks for any help. |
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| oz1ccg |
| Posted: Wed Mar 19, 2003 1:43 pm Post subject: |
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Yatiri
Joined: 10 Feb 2002
Posts: 628
Location: Denmark
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In general speaking no, and second: why should a message exit want to start a CICS transaction ? why can't you do your processing i the C-program under Z/OS ?
There are some performace issues when dealing with exits to look on:
A message exit should be fast, this means the processing it performs should not use system calls that might suspend the processing (this could be due to a HSM_RECALL, This was the slowest thing I could think of), which means that the channel is blocked for a long period of time....
Think very carefull about what to code, and second do a good test including a stress test of the exit.... I know you will. 
Just my $0.02 
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Regards, Jørgen
Home of BlockIP2, the last free MQ Security exit ver. 3.00
Cert. on WMQ, WBIMB, SWIFT. |
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