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| CCDT file and load balancing across same named QM |
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| zrux |
 Posted: Fri Jan 31, 2025 11:30 pm Post subject: CCDT file and load balancing across same named QM |
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Apprentice
Joined: 21 May 2006
Posts: 41
Location: UK
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Hello
Using JMS and CCDT, will it be possible to use the "automatic reconnect" feature for MQ clients to connect back to 2 different QMs with same/similar names in a way that in case QM1 on node1 fails, the MQ JMS client can automatically connect to the QM1 on node2?
Please note-
1) this is NOT a MQ MI setup.
2) MQ version 9.4, and same for clients
3) We cannot use a traditional MQ cluster using cluster SDR/RCVRs
4) I have tried and found, if the MQ JMS client is replaced with the QM on the other side, it can detect a failure on None1 and automatically transfer the traffic to Node2.
Do I need the "MQ uniform cluster" to make the auto reconnect of JMS client to work?
I tried this with the following CCDT in json format, and didnt succeed unless the JMS MQ client program is restarted. |
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| fjb_saper |
| Posted: Sun Feb 02, 2025 5:32 pm Post subject: Re: CCDT file and load balancing across same named QM |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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| zrux wrote: |
Do I need the "MQ uniform cluster" to make the auto reconnect of JMS client to work?
I tried this with the following CCDT in json format, and didnt succeed unless the JMS MQ client program is restarted. |
I believe the answer is YES. For a dynamic automatic reconnect of the client with load balancing across multiple qmgrs, you do need a Uniform Cluster set up.
Hope it helps 
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