MQ: Problem with triggering a transaction

visu319 · New User Joined: 30 Jun 2009 Posts: 3 Location: hyderabad

Hi,
We are facing some issue with triggering of CICS transaction when message is put on to a Queue on our Mainframe.

About application: We have some application which can be segregated into Client (Involves only CICS) and Server (one CICS module and rest all is DB2). when tested individually Client application is able to put the message into the static queue. This static Queue is connected with initiation queue which is monitored by CICS. The message entry into static queue should invoke the transaction of Server application. But this is not happening. I even cross checked the Server application even. This is also working fine. But when i execute total as one application server side application is not getting invoked.

Note: we are executing a delay module with an interval of 10 sec and client application will tried to get the message from the dynamic queue, which should be populated by the server application when triggered.

Need your inputs on this.

Thanks in advance,
Visu

Bill Dennis · Posted: Thu Jul 02, 2009 8:31 pm

Examine the local queue to be sure TRIGGER in ON and TRIGTYPE is FIRST.

visu319 · New User Joined: 30 Jun 2009 Posts: 3 Location: hyderabad

Hi Bill,
The local queue definition looks fine. The two parameters which u suggested are defined like this.

Trigger type . . . . . . : E F=First, E=Every, D=Depth, N=None
Trigger set . . . . . . : Y Y=Yes, N=No

I am still facing this issue.

Thanks,
Visu

Garry Carroll · Posted: Fri Jul 03, 2009 1:26 pm

Also, check the local queue to see that it references a PROCESS definition which specifies the CICS transaction to be executed.

Garry.

visu319 · New User Joined: 30 Jun 2009 Posts: 3 Location: hyderabad

Garry Carroll · Posted: Fri Jul 03, 2009 5:11 pm

Hi Visu,
Have you checked the program for that transaction using CEMT ? If it's being triggered, you should see its use count increment if it's being executed.
It's surprising that the only EXEC CICS in the code is the RETURN - is m there any EXEC SQL ? How does the CICS application record anything it does?

Garry.

genesis786 · Posted: Mon Jul 06, 2009 5:00 pm

I try following troubleshooting steps in such case:

1. Check if the Msg is landing in the Q. (disable the trigger and do MQBR)
2. Check if the trigger is enabled on the Q.
3. Check if the process definition is right or not. (ie cics set up should be done for that process)
4. Check if the process/transaction is enabled in CICS.
5. Check if the program is enabled or not.
6. Check job log for the CICS transaction if the problem persists.
7. If none works, check with peers / those who know

apart from that:

Trigger Type - E isn't really recommended by our middleware admins. They recommend using F and then using the program to read through the end of queue. Anyhow, I am sure you must have a reason for that.