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[Solved] Wierd problem in clustering... |
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smaram1 |
Posted: Wed Jul 09, 2003 5:01 pm Post subject: [Solved] Wierd problem in clustering... |
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Novice
Joined: 06 May 2003 Posts: 19
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Hi All,
I am facing a simple issue in clustering and i am unable to figure that out. Here is the scenario.
I have total of 4 Queue Managers on two machines. 2 Queue Managers on each machine. Say QM1, QM2 on first machine and QM3 and QM4 in second machine.
I have repositories on QM1 and QM3 and both have receiver and sender channels pointing to each other.
QM2 and QM4 are normal queue managers and i have receiver-sender channels from QM2 --> QM1 and QM4 --> QM3. As for as my understanding on cluster goes, this should be enough for clustering.
When i look for DIS CLUSQMGR(*) on QM1, i am seeing QM1, QM2 and QM3. I dont see QM4.
It looks like
QM1 and QM3 are seen since they both have repositories connected and hence know each other.
QM2 is seen since they r on same machines. I dont see QM4. There is some thing i am missing.
Simillarly the same thing happens on other machine. when i see DIS CLUSQMGR(*) on QM3, i am seeing QM3, QM4 and QM1 but i dont see QM2.
SOME MORE INFO TO DEBUG:
cluster-receive and sender channels on QM1 and QM3 are both running.
cluster-sender channel is running for QM2 and QM4 but cluster-receiver channel is INACTIVE. Is this the problem?
I am trying to stop it and it says STOPPED and when try to start it, it says INACTIVE again. When i look at the Channel Status Type it says SAVED from MQ explorer.
Please let me know if you guys have any idea on what i am doing wrong.
Thanks in advance,
Suresh |
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smaram1 |
Posted: Wed Jul 09, 2003 5:51 pm Post subject: some more info |
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Novice
Joined: 06 May 2003 Posts: 19
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when i try to refresh cluster for each QM,
for QM1 and QM3, when i do this
REFRESH CLUSTER (VIZIONAL_CLUSTER),
i am getting
07/09/03 18:40:00 Channel program started.
which is good.
for QM2 and QM4, i dont see this message which means the cluster receiver-sender channels are not working...right?
Also i explicitly created CLUSRCVR and CLUSSDR channels from QM2 --> QM1, QM4 --> QM3 and QM1 --> QM3.
Hope this info gives more idea.
Suresh |
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EddieA |
Posted: Thu Jul 10, 2003 6:10 am Post subject: |
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 Jedi
Joined: 28 Jun 2001 Posts: 2453 Location: Los Angeles
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From the manual:
Quote: |
Use DISPLAY CLUSQMGR to display information about cluster channels for queue managers in a cluster |
So, unless the Cluster has had a reason to auto generate a channel between QM3 and QM4 I wouldn't expect to see one based on your first post. Not sure why they wouldn't show up after an explicit definition though.
Try creating a clustered queue on QM3 or QM4 and then take a look.
Cheers, _________________ Eddie Atherton
IBM Certified Solution Developer - WebSphere Message Broker V6.1
IBM Certified Solution Developer - WebSphere Message Broker V7.0 |
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smaram1 |
Posted: Thu Jul 10, 2003 9:40 am Post subject: |
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Novice
Joined: 06 May 2003 Posts: 19
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Thanks for the reply Eddie.
Infact i already created several queues and it never updated.
I am pretty sure the channels are getting messed up and as far as i am seeing SYNTAX and Parameters that i am using for creating channels are perfect.
When i run the command
REFRESH CLUSTER (CLUSTER_NAME) for all QM's, i am seeing this message
07/09/03 18:40:00 Channel program started.
only for QM1 and QM3. This concludes that channels for QM2 and QM4 are wrong. Am i intrepreting this correctly?
Any other advices?
Thanks
Suresh |
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smaram1 |
Posted: Thu Jul 10, 2003 1:44 pm Post subject: |
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Novice
Joined: 06 May 2003 Posts: 19
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Hi All,
There were channels problems and that was causing. Thanks for your time and everything looks fine now.
Thanks
Suresh |
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