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| careboy |
 Posted: Tue Feb 14, 2006 2:26 am Post subject: Load Balancing with MQ Cluster |
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Novice
Joined: 15 Jan 2006
Posts: 10
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Hi,
A newbie question.
I have 3 queue managers which are clustered in a SUN SOLARIS env (mq 5.3 csd10). QM1 and QM2 are residing on the same SUN SOLARIS server and QM3 is residing on a separate SUN SOLARIS server.
Both QM2 and QM3 have the same clustered QAlias (ABC.REQ.UPD.01).
I have tried sending multiple messages to ABC.REQ.UPD.01. All the messages ends up in QM2.
Question:
1. As the ABC.REQ.UPD.01 Queue is clustered, shouldn't some of the messages end up in both QM2 and QM3? (load balanced algorithm)
2. QM3 has a process which polls the clustered q heavily. would this be a reason why all the messages are sent to QM2 instead?
Thanks |
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| Vitor |
| Posted: Tue Feb 14, 2006 3:25 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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Hi,
Some possible explainations:
Which queue manager are you sending the messages from? If the message is PUT from a queue manager which has a local copy of the queue (like QM2) the message will always go there;
Is the PUT option BIND_ON_OPEN? In this case, target queue instance is fixed by the open. |
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| HubertKleinmanns |
| Posted: Mon Feb 20, 2006 9:52 am Post subject: |
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Shaman
Joined: 24 Feb 2004
Posts: 732
Location: Germany
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Do you specifiy a QMgr name in the PUT calle?
_________________
Regards
Hubert |
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| PeterPotkay |
| Posted: Mon Feb 20, 2006 11:33 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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| HubertKleinmanns wrote: |
| Do you specifiy a QMgr name in the PUT calle? |
Technically, the MQOPEN call is where the destination is locked in for clustering if you specify a destination QM.
_________________
Peter Potkay
Keep Calm and MQ On |
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| HubertKleinmanns |
| Posted: Tue Feb 21, 2006 10:12 am Post subject: |
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Shaman
Joined: 24 Feb 2004
Posts: 732
Location: Germany
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| PeterPotkay wrote: |
| HubertKleinmanns wrote: |
| Do you specifiy a QMgr name in the PUT calle? |
Technically, the MQOPEN call is where the destination is locked in for clustering if you specify a destination QM. |
careboy,
of course Peter is right. So did you specify the ObjectQMgr in the MQOPEN call?
_________________
Regards
Hubert |
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