MQSeries.net :: View topic - IMS MQPUT processing under syncpoint control

mktgurutsm · Posted: Fri Dec 03, 2004 12:41 pm Post subject:

We are having bottleneck and response time issue when high volume applications that flow as follows:
1) MQ to IMS via IMS MQ trigger monitor BMP - triggers IMS transaction.
2) IMS transaction does MQ GET and PUT processing.
3) On the MQ PUT processing under syncpoint control, it's apparently forcing an MQ Close and Disconnect then it has to reconnect which is very expensive.

From other posts I have read, it has been suggested that OTMA IMS bridge can alleviate this issue. How does using the OTMA IMS bridge alleviate these IMS MQ connect/disconnect issues?

Our processing is very much as described earlier in this post:

1) GU call to read the trigger message
2) From trigger msg I will come to know of QMgr and Queue name.
3) MQConn to connect to QMGR
4) MQOPEN in syncpoint + inquire+fail if quiescing option
5) MQGet
6) Process the message(By calling another IMS application)
7) MQPUT (syncpoint )
MQCLOSE
9) MQDISC
10) GO TO STEP 1 above till there are more trigger message

The MQPUT (under syncpoint control) apparently forces an MQ Close and Disconnect. My question is (I hope you or someone can answer it), how does using the OTMA IMS bridge alleviate this? If we use the OTMA IMS bridge instead of the BMP IMS MQ trigger monitor which triggers the IMS transaction that does the MQ GET and PUT processing, how would OTMA alleviate the excessive MQ Close and Disconnect calls when under syncpoint control.