MQSeries.net :: View topic - Workload balancing

fitzcaraldo · Posted: Tue Apr 19, 2005 4:35 pm Post subject:

Hi,

I know it's bad to have two queue managers with the same name within a cluster, but what about two queue manager aliases with the same name?

Suppose I have a packaged application that does an MQOPEN specifying the target queue manager and also that there is no BIND_ON_OPEN in operation. Also suppose the name of queue manager is configurable but not the fact that it is specified in the MQOPEN.

Also suppose that I want to workload balance and provide limited failover using the cluster features of WMQ.

Using QM1 as a source and QM2 and QM3 as targets, define a QM alias on each of QM2 and QM3 called TARGET and include it in the cluster. Then on QM1 do an MQOPEN specifying TARGET as the destination QM. Will the MQOPEN round-robin between QM2 and QM3?

I know I could define a QM alias on the source that resolved to a NULL to force clustering at the queue level but I was wondering if this technique would work at the QM level.