Task 22: Suppress information messages
- You need to perform this task once for each z/OS system where you want to run WebSphere MQ.
- You do not need to perform this task when migrating from a previous version.
If your WebSphere MQ system is heavily used, with many channels stopping and starting, a large number of information messages are sent to the z/OS console and hardcopy log. The WebSphere MQ-IMS bridge and buffer manager might also produce a large number of information messages.
If required, we can suppress some of these console messages by using the z/OS message processing facility list, specified by the MPFLSTxx members of SYS1.PARMLIB. The messages you specify still appear on the hardcopy log, but not on the console.
Sample thlqual.SCSQPROC(CSQ4MPFL) shows suggested settings for MPFLSTxx. See the MVS Initialization and Tuning Reference manual for more information about MPFLSTxx.
If you want to suppress selected information messages on the hardcopy log, we can use the z/OS installation exit IEAVMXIT. We can set the following bit switches ON for the required messages:
- CTXTRDTM
- Delete the message.
The message is not displayed on consoles or logged in hardcopy.
- CTXTESJL
- Suppress from job log.
The message does not go into the JES job log.
- CTXTNWTP
- Do not carry out WTP processing.
The message is not sent to a TSO terminal or to the system message data set of a batch job.