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High availability / failover with Websphere MQ

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Dear all,

 

I'm setting up connection between our SAP PI (7.0 SP25) and a Websphere MQ environment (7.5). We would like to utilize MQ's possibilities for failover without going the HACMP / Power HA way of the underlying AIX OS.

 

So one possible strategy would be to use multi-instance queue managers on MQ.

 

However, skimming through this document I'm worried that using multi-instance queue managers would not be feasible because it relies on automatic reconnect that seems not be supported by WebSphere MQ classes for Java? (See Table 1 in below link)

http://publib.boulder.ibm.com/infocenter/wmqv7/v7r0/index.jsp?topic=%2Fcom.ibm.mq.amqzag.doc%2Ffa70190_.htm

 

1. Are "WebSphere MQ classes for Java" the one that we have deployed to our PI, or to put it the other way: Are we affected through this restriction on PI then?

 

I've also found this blog that claims that failover with MQ should be possible

http://scn.sap.com/people/anandan.krishnamoorthy/blog/2010/06/08/high-availability-in-jms-adapter#comments

 

However, unfortunatelly this blog seemed not to survive transition from SDN to SCN very well so screenshots that seemed to be essential are missing

 

2. If going the way, Anandan propoesed in his blog, could anybody give me details on where to put the CCDT file and what content it should have. Did anybody succeed in setting up HA / failover following that blog?

 

3. Is there any other blog or how-to for setting up HA / failover for MQ or do you have any other best practices if the points 1 and 2 do not apply

 

Any help would be greatly appreciated

 

Thanks

 

Jens


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