This parameter with the MSGTHRESHOLD parameter, detects address spaces that issue excessive numbers of messages. To understand what these parameters do, consider this analogy: each address space is like a bathtub with a depth set by MSGTHRESHOLD. Each time the address space issues a message, it flows into this bathtub, which has a drain through which the MSGDRAINRATE number of messages flows each second. When the message bathtub overflows, CA OPS/MVS issues message OPS4402O.
To prevent messages from overflowing an address space and causing system problems due to looping, you can create a message rule. This rule might cancel the looping address space or place it in a penalty performance group.
10 (messages)
Any number of messages between 1 and 32767
Anytime
Example: MSGDRAINRATE
This function sets the message drain rate to 5000.
OPSPRM('SET','MSGDRAINRATE','5000')
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