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Limitations on WebSphere MQ work done in the routing exit

When writing routing exit programs, be aware of the following restrictions on MQI calls:

• Do not issue MQDISC.

• Do not issue MQCMIT or MQBACK within the exit:

  • If you are using SyncPointIfPersistent=yes (described in Broker configuration stanza), do not take recoverable action within the exit when processing nonpersistent messages.

  • If you are using SyncPointIfPersistent=no, or persistent messages, the exit is invoked within the scope of the publication unit of work.

 

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