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g4Prakash · Posted: Wed Jul 07, 2004 4:20 am Post subject:

Hi all,

I would appreciate if you could go thru the passage patiently and reply back with your comments...

My Scenario:
------------------------
I need to setup a queue manager cluster comprising 4 Qmgrs on 4machines: 2 NT boxes (BOX A & BOX B) & 2 AIX boxes (Box C & BOX D).

Box A, BOX C and Box D are in the same network. Box B is a part of a different network.BOX C & BOX D expose an IP address to BOX A which is different to what is exposed to BOX B. Box A and Box B cannot communicate with each other directly.

Box A IP Add: 111.222.333.443 exposed to Box C & Box D
Box B IP Add: 987.654.321.098 exposed to Box C & Box D

Box C IP Add: 111.222.333.444 exposed to Box A & Box D
Box C IP Add: 555.666.777.888 exposed to Box B

Box D IP Add: 111.222.333.445 exposed to Box A & Box D
Box D IP Add: 555.666.777.889 exposed to Box B

I have tried the following ... I need your opinion on the same ...

On Box C:
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QMC -- Full Repository QMgr for Cluster -- "ClusterABCD"
ClusRcvr -- QMD.QMC-
ClusSdr -- QMC.QMD

ClusRcvr -- QMA.QMC
ClusSdr -- QMC.QMA

On Box D:
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QMD -- Full Repository QMgr for Cluster -- "ClusterABCD"

ClusRcvr -- QMC.QMD
ClusSdr -- QMD.QMC

ClusRcvr -- QMB.QMD
ClusSdr -- QMD.QMB

**** To add the NT QMgrs as Full Repositories to ClusterABCD: *****

On Box A:
-------------
QMA -- Full Repository for Cluster -- "ClusterABCD"

ClusRcvr -- QMC.QMA
ClusSdr -- QMA.QMC

On Box B:
-------------
QMB -- Full Repository for Cluster -- "ClusterABCD"

ClusRcvr -- QMD.QMB
ClusSdr -- QMB.QMD

Hope this configuration is fine.

Note:
-------
A synchronous request would be sent from the NT box to AIX. The application on AIX will pick up the msg, process it and send a reply back to the NT. I have created a local queue QA for requests with Cluster attribute on both AIX boxes. The NT application at Box A and Box B put msgs to the logical cluster queue QA at its end. On Box A QR1, and on Box B QR2 have been defined as local queue with cluster attribute for reply msgs.

Multiple instances of a queue are defined on the AIX QMgrs to leverage load balancing.

I added the NT QMgrs as Full Repositories as opposed to Partial as I read somewhere (cant recollect where!!) that Partial repositories take considerable amount of time to locate a logical cluster queue nmae as that information has to come from the Full Repository that it points to ...

My Questions:
1) Do I need to define ClusSdr and ClusRcvr channels between the NT & AIX QMgrs as I have stated ... or I just define a ClusRcvr at NT (say BOX A) and then define a ClusSdr on BOX A that points to an existing ClusRcvr on AIX (say BOX C) ...
The same would not be possible for BOX B as the ClusRcvr on Box D has a different Conname ...So I would need to define a separate channel pair for them.

Awaiting your comments/suggesstions on the cluster configuration that I have designed and whether or not the NT QMgrs should be Partial or Full Repositories. Are ther any pros/cons if all QMgrs in a cluster are Full Repositories.

I am sorry if I have made the passage explanation confusing

Thanks in advance for you time & guidance.