Greg Fodor created KAFKA-3811:
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Summary: Introduce KStream metrics recording levels
Key: KAFKA-3811
URL: https://issues.apache.org/jira/browse/KAFKA-3811
Project: Kafka
Issue Type: Improvement
Components: streams
Reporter: Greg Fodor
Assignee: Guozhang Wang
Follow-up from the discussions here:
https://github.com/apache/kafka/pull/1447
https://issues.apache.org/jira/browse/KAFKA-3769
The proposal is to introduce configuration to control the granularity/volumes
of metrics emitted by Kafka Streams jobs, since the per-record level metrics
introduce non-trivial overhead and are possibly less useful once a job has been
optimized.
Proposal from guozhangwang:
level0 (stream thread global): per-record process / punctuate latency, commit
latency, poll latency, etc
level1 (per processor node, and per state store): IO latency, per-record ..
latency, forward throughput, etc.
And by default we only turn on level0.
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