MQSeries.net :: View topic

HOMETOWN47 · Posted: Thu Oct 07, 2004 4:18 am Post subject:

I've got a message flow where we wish to first put a copy of the input message onto a 'holding' queue before we then do the main message processing. If we get any business logic errors during the main processing we retrieve the message put on the holding queue and send this to an error processing flow.
I'm using a Floworder node which connects the 'first' terminal to a compute node (to set some XML fields) which is then connetced to the MQOutput node (the hold q). The 'second' terminal is connected to a compute node which sets the destinationlist. This node then connects to a RouteToLabel node which decides the main processing route.

What we are finding is that during the main processing (wired off of the second terminal) when we come to retrieve the message put onto the holding queue using an MQGet node, the message is not there ! It appears to be a timing issue because the message does get put onto the holding queue.

Additional information:-

The hold queue is NOT under transactional control (we wish to leave the message on the queue if we rollback).
The persistance on the hold queue is automatic.

We are running multiple execution groups with the same message flow in them. In addition we have additional instances set (to 2) within the execution groups (commit count=1, commit interval=0,cordinated transaction=no)

We're running MQSI 2.1 with CSD 5 (I think!)