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From Sam Lendle <slen...@pandora.com>
Subject Total metrics are broken in Kafka streams 2.0.0
Date Wed, 01 Aug 2018 23:37:19 GMT
Is this a known issue? If not I can create a JIRA.

For example, here’s a screenshot of the process-total metric for one processor node and
task under stream-processor-node-metrics. Processor-total goes down over time when it shouldn’t.
Same thing for total metrics under stream-metrics, stream-*-state-metrics, stream-task-metrics.
Total metrics look okay for producer and consumers that I’ve looked at.

Technically most streams total metrics aren’t documented (https://docs.confluent.io/current/streams/monitoring.html),
so maybe they’re not officially supported but they are mentioned in KIP 187 https://cwiki.apache.org/confluence/display/KAFKA/KIP-187+-+Add+cumulative+count+metric+for+all+Kafka+rate+metrics.

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