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Due to processing by IBM, this request was reassigned to have the following updated attributes:
Brand - Servers and Systems Software
Product family - Enterprise Tooling
Product - CICS Transaction Gateway
For recording keeping, the previous attributes were:
Brand - WebSphere
Product family - Enterprise Tooling
Product - CICS Transaction Gateway
Hi,
I agree with your suggestion to add a high-water-mark statistic for the value of CM_CWAITING.
We also need if possible the total number of Connection Manager waiting during the full interval, an 'CM_IWAITING'.
These value will help to determine if MaxWorker must be increased or if we have in case of short time peak.
To clarify, CM_CWAITING does indicate the number of connection managers that are actively waiting for a worker thread - and is included (as are all statistics) in each SMF record. However, I agree that value of value of CM_CWAITING might have returned to a low value by the end of the statistics interval, and so you do not know the maximum "depth" of the queue over the course of an interval.
Would you agree that CM_CWAITING already shows you how many connection managers are waiting for a worker thread, and that if a high-water-mark statistic for the value of CM_CWAITING was added - then this was provide you with the information you have requested?
Note that if such a statistic was made available, then in certain circumstances such as "start of day", it might validly show a high value, as a burst of client application all attach at 9am (for example).