MQ Connection situations

The single predefined situation in this category monitors an MQ connection. The description and formula for this situation follow.

Note:
All the attribute names in this group are prefixed with CICSplex_MQ_Connection_Details. except where stated.
CICSplex_MQInactive_Warning
Warning threshold exceeded for MQ connection status.

The CICS adapter can be automatically connected during CICS initialization by adding program CSQCCODF to the PLTPI. If CICS has been configured for use, the connection can have failed because of CICS authorization errors or an incorrect queue manager specification.

Formula

If the value of Connection_Status equals Inactive
then situation CICSplex_MQInactive_Warning is true.
CICSplex_MQInactive_Critical
This is the critical threshold exceeded for MQ connection status.

The CICS adapter can be automatically connected during CICS initialization by adding program CSQCCODF to the PLTPI. If CICS has been configured for MQ use, the connection can have failed because of CICS authorization errors or an incorrect queue manager specification.

Formula

If the value of Connection_Status equals Inactive
then situation CICSplex_MQInactive_Critical is true.
CICSplex_MQBusyTCBs_Warning
Warning threshold exceeded for MQ busy TCB count.

There are eight subtask TCBs available for MQM requests. If all TCBs are busy, transactions can have to wait for their message queuing requests to be processed. A high number of busy TCBs does not necessarily result in CICS performance problems.

Note:
It is not possible to modify the number of TCBs CICS uses for MQM connections.

Formula

If the value of Busy_TCBs is greater than 6 
and the value of Busy_TCBs is less than or equal to 8
then situation CICSplex_MQBusyTCBs_Warning is true.
CICSplex_MQBusyTCBs_Critical
This is the critical threshold exceeded for MQ busy TCB count.

There are eight subtask TCBs available for MQM requests. If all TCBs are busy, transactions can have to wait for their message queuing requests to be processed. A high number of busy TCBs does not necessarily result in CICS performance problems.

Note:
It is not possible to modify the number of TCBs CICS uses for MQM connections.

Formula

If the value of Busy_TCBs is greater than 8
then situation CICSplex_MQBusyTCBs_Critical is true.

See also the CICSplex MQ Connection Details attribute group.