If you want to track your event count in the ESP model, add a counter window to the model, and create an edge from your source window to the counter window. That will count events and give event rates flowing into the model. If long term persistent storage of event counts is required outside the model, then that is the task of the Event Stream Processing metering server. If the metering server is up and running in a Viya 4/K8 ESP installations, all ESP pods periodically talk to the metering server to persist event counts. The metering server can be queried using curl and its REST interface.
Cheers,
Scott.
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