DL1231 opened a new pull request, #20152: URL: https://github.com/apache/kafka/pull/20152
Currently, it appears that the small sampling window size is causing distortion in metrics with larger time windows. The default configuration samples two windows, each 30 seconds long. If rebalances occur twice—once at the 1st minute and again at the 59th minute—the expected value for rebalance-rate-per-hour should be 2. However, when calculating at the 59th minute: - The window length is 2 × 30s = 60 seconds - The system only detects 1 rebalance (the latest event within the 60s window) - The calculation becomes: 1 / 60s = 60 rebalances per hour Thus, rebalance-rate-per-hour incorrectly reports 60. This patch manually specifies the timeWindow as 1 hour when registering hourly monitoring metrics. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
