Statistics messages format
Statistics messages comprise a set of PCF fields that consist of a message descriptor and message data.
- Message descriptor
- A statistics message MQMD (message descriptor)
- Accounting message data
- A statistics message MQCFH (PCF header)
- Statistics message data that is always returned
- Statistics message data that is returned if available
The statistics message MQCFH (PCF header) contains information about the interval for which the statistics data was recorded.
Statistics message data comprises PCF parameters that store the statistics information. The content of statistics messages depends on the message category as follows:
- MQI statistics message
- MQI statistics message data consists of a number of PCF parameters, but no PCF groups.
- Queue statistics message
- Queue statistics message data consists of a number of PCF parameters, and in the range 1 through 100 QStatisticsData PCF groups.
There is one QStatisticsData PCF group for every queue was active in the interval. If more than 100 queues were active in the interval, multiple statistics messages are generated. Each message has the SeqNumber in the MQCFH (PCF header) updated accordingly, and the last message in the sequence has the Control parameter in the MQCFH specified as
MQCFC_LAST. - Channel statistics message
- Channel statistics message data consists of a number of PCF parameters, and in the range 1 through 100 ChlStatisticsData PCF groups.
There is one ChlStatisticsData PCF group for every channel that was active in the interval. If more than 100 channels were active in the interval, multiple statistics messages are generated. Each message has the SeqNumber in the MQCFH (PCF header) updated accordingly, and the last message in the sequence has the Control parameter in the MQCFH specified as
MQCFC_LAST.