Matthias J. Sax created KAFKA-20877:
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Summary: Streams task-level restore-rate and update-rate incorrect
Key: KAFKA-20877
URL: https://issues.apache.org/jira/browse/KAFKA-20877
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 3.5.0
Reporter: Matthias J. Sax
The task-level metrics restore-rate/restore-total (active tasks) and
update-rate/update-total (standby tasks) are meant to report how many changelog
records were restored or updated. update-rate is documented as "The average
number of records updated per second".
However, the rate-metric is incorrectly captured. It counts how many times the
sensor was recorded and discards the value (number of records restored), so it
incorrectly reports restore/update batches per second.
Introduced via KAFKA-10199 which added these metrics.
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