Luke Chen created KAFKA-17035:
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Summary: Add debug log to retention cleanupLogs method to help
troubleshoot issues
Key: KAFKA-17035
URL: https://issues.apache.org/jira/browse/KAFKA-17035
Project: Kafka
Issue Type: Improvement
Reporter: Luke Chen
Sometimes, there will be some log segments leftover without getting deleted as
configured. One example is, the config is set to retention.ms = 7 days, but
there are some log segments stay in storage for more than 7 days. In this case,
it's difficult to troubleshoot if there is a bug in kafka or something wrong in
the log segment (ex: max time is wrongly set).
To help troubleshooting, we could add "trace level" or "debug level" logs when
doing retentionSize/retentionMs/logStartOffset check for each log segment.
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