Dong Lin created KAFKA-7098:
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Summary: Improve accuracy of the log cleaner throttle rate
Key: KAFKA-7098
URL: https://issues.apache.org/jira/browse/KAFKA-7098
Project: Kafka
Issue Type: Improvement
Reporter: Dong Lin
Assignee: Dong Lin
LogCleaner uses the Throttler class to throttler the log cleaning rate to the
user-specified limit, i.e. log.cleaner.io.max.bytes.per.second. However, in
Throttler.maybeThrottle(), the periodStartNs is set to the time before the
sleep after the sleep() is called, which artificially increase the actual
window size and under-estimate the actual log cleaning rate. This causes the
log cleaning IO to be higher than the user-specified limit.
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