Suppress information messages
Your IBM MQ system might produce a large number of information messages. We can prevent selected messages being sent to the console or to the hardcopy log.
- We need to perform this task once for each z/OS system where we want to run IBM MQ.
- You do not need to perform this task when migrating from a previous version.
If the IBM 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 IBM 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.
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.
Note:
- For full details on the other parameters, refer to the MVS Installation Exits documentation.
- You are not recommended to suppress messages other than those in the suggested suppression list, CSQ4MPFL.
In addition we can specify the extra parameter:
- EXCLMSG
- Specifies a list of messages to be excluded from any log.
Messages in this list are not sent to the z/OS console and hardcopy log. See EXCLMSG in Use CSQ6SYSP for further information.
Parent topic: Configure the queue manager and channel initiator
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