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| MQGET MQPUT using CCDT Design question |
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| IIB_Intel |
 Posted: Fri May 29, 2020 4:02 am Post subject: MQGET MQPUT using CCDT Design question |
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Acolyte
Joined: 07 May 2015
Posts: 64
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In ACE if we connect to a QM hub (with 4 QM on 9.2) using CCDT having a group with all 4 QMs then
- can we enforce that one flow always uses same connection? We can specify MQEndpoint Policy at the node level only. I am thinking with uniform clustering enabled 2 client connections from the same flow may go to 2 different queue manager. Connection is required to same QM when using MQGET node.
- With uniform clustering, since ACE doesn't put any application name, all the connections (from all flows on the NODE) to the QM hub will be load balanced. It may result in putting all connections for a single flow to 1-2 QMs only resulting in messages never getting consumed from other QMs for that flow's queue.
Thoughts? Alternative solution? |
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| hughson |
| Posted: Sun May 31, 2020 2:57 pm Post subject: |
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Padawan
Joined: 09 May 2013
Posts: 1914
Location: Bay of Plenty, New Zealand
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I don't know about what ACE gives you, but there is support in MQ for choosing the first connection from the CCDT, and then having all subsequent connections go to the same place. To do that you use MQCNO_CD_FOR_OUTPUT_ONLY on the first one, and then MQCNO_USE_CD_SELECTION on subsequent connections. See Example 3 in IBM MQ Little Gem #20: Picking CCDT entry by Channel Name.
So now the question is, can you utilise this in ACE.
Cheers,
Morag
_________________
Morag Hughson @MoragHughson
IBM MQ Technical Education Specialist
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MQGem Software |
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| IIB_Intel |
| Posted: Wed Jun 03, 2020 4:27 am Post subject: |
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Acolyte
Joined: 07 May 2015
Posts: 64
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| Yes, question is more specific to IIB/ACE. |
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