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Posted to issues@flink.apache.org by "Piotr Nowojski (Jira)" <ji...@apache.org> on 2020/12/22 11:38:00 UTC

[jira] [Created] (FLINK-20718) Create isCausingBackPressureRatio and isCausingBackPressure metrics

Piotr Nowojski created FLINK-20718:
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             Summary: Create isCausingBackPressureRatio and isCausingBackPressure metrics
                 Key: FLINK-20718
                 URL: https://issues.apache.org/jira/browse/FLINK-20718
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Metrics
            Reporter: Piotr Nowojski
             Fix For: 1.13.0


create {{isCausingBackPressureRatio}} and {{isCausingBackPressure}} metrics. Based on either {{!isBackPressured && inPoolUsage > 0.5}} or {{!isBackPressured && idleTimeMsPerSecond < 1ms}} . Probably the latter version is better, as it would neatly ignore the problem that {{inPoolUsage}} metric doesn't work with {{LocalInputChannel}}



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