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MQSeries.net Forum Index » Clustering » Gateway cluster question

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fitzcaraldo
PostPosted: Wed Nov 02, 2005 6:20 pm    Post subject: Gateway cluster question Reply with quote

Voyager

Joined: 05 May 2003
Posts: 98
Hi
I am planning to use a pair of QMs as a gateway in to a central cluster for both downstream clustered and downstream non-clustered QMs.

Also in the central cluster is a pair of broker machines each with a queue exposed in the cluster for load balancing purposes.

These gateway machines will use linear logging and I will do a daily backup after bringing down the queue manager.

As part of the backup I assume I will do a SUSPEND on the gateway QM which will load balance all downstream clustered traffic to the other gateway.

The non-clustered downstream QM can handle the outage while the backup occurs. My question relates to traffic from these non-clustered QMs destined for the broker cluster queues via the gateway.

If I do a SUSPEND before I stop the channels will I get a cluster resolution error for incoming traffic for the broker or will they still get written to the cluster transmit queue?

Do I need to stop the channels first?
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fjb_saper
PostPosted: Wed Nov 02, 2005 7:57 pm    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
I would suspend first. This should redirect all cluster traffic to the other broker. Then stop all channels run rcdmqimg and finally shut down the qmgr:
suspend
stop channels
rcdmqimg
endmqm -i qmgr
Do the off line backup
restart the qmgr
archive the linear logs
restart the channels
resume the qmgr in the cluster....


But then, that's just me
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