How activity information is recorded

With trace-route messaging, we can record activity information in the message data of the trace-route message, or use activity reports. Alternatively, we can use both techniques.

Accumulating activity information in the message data of the trace-route message

As a trace-route message is routed through a queue manager network, information about the activities performed on behalf of the trace-route message can be accumulated in the message data of the trace-route message. The activity information is stored in Activity PCF groups. For every activity performed on behalf of the trace-route message, an Activity PCF group is written to the end of the PCF block in the message data of the trace-route message.

Additional activity information is recorded in trace-route messaging, in a PCF group called the TraceRoute PCF group. The additional activity information is stored in this PCF group, and can be used to help determine the sequence of recorded activities. This technique is controlled by the Accumulate parameter in the TraceRoute PCF group.

Recording activity information using activity reports

As a trace-route message is routed through a queue manager network, an activity report can be generated for every activity that was performed on behalf of the trace-route message. The activity information is stored in the Activity PCF group. For every activity performed on behalf of a trace-route message, an activity report is generated containing an Activity PCF group. Activity recording for trace-route messages works in the same way as for any other message.

Activity reports generated for trace-route messages contain additional activity information compared to the those generated for any other message. The additional information is returned in a TraceRoute PCF group. The information contained in the TraceRoute PCF group is accurate only from the time the activity report was generated. We can use the additional information to help determine the sequence of activities performed on behalf of the trace-route message.

Parent topic: Trace-route messaging