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| MQ triggering - multiple INITQ vs single INITQ? |
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| chris boehnke |
 Posted: Tue Mar 22, 2011 11:10 am Post subject: MQ triggering - multiple INITQ vs single INITQ? |
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Partisan
Joined: 25 Jul 2006
Posts: 369
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Hi Guys,
We are using MQ v7 on z/os.
We have couple of queues which needs to trigger an application(CICS) when there is a message on these queues.
When we have multiple local queues which all will trigger same CICS region.
Question:
Which one is best practice to go with single INITQ for all the local queues or seperate INITQ for each local queue?.
Thanks. |
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| bruce2359 |
| Posted: Tue Mar 22, 2011 11:13 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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One initq can serve for all queues; but you would probably want to create separate initqs by application type (payroll vs. inventory, for example) to reduce the possibility of an pervasive outage if one initq becomes full.
_________________
I like deadlines. I like to wave as they pass by.
ב''ה
Lex Orandi, Lex Credendi, Lex Vivendi. As we Worship, So we Believe, So we Live. |
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| bob_buxton |
| Posted: Tue Mar 22, 2011 2:31 pm Post subject: |
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Master
Joined: 23 Aug 2001
Posts: 266
Location: England
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The standard trigger monitor application CKTI can only monitor a single INITQ so if you have multiple INITQ you will need to arrange automation start multiple CKTI transactions. Only one CKTI is automatically started by the MQ-CICS adapter when CICS connects to MQ.
While this is extra work it does allow you to control which userid your MQ transactions run under.
INITQs rarely become full because trigger messages are not generated if the queue is not open and the trigger message processing is quite simple and fast.
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Bob Buxton
Ex-Websphere MQ Development |
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