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Posted to dev@flink.apache.org by "Fu Kai (Jira)" <ji...@apache.org> on 2021/06/10 02:04:00 UTC

[jira] [Created] (FLINK-22950) Back-pressure report final sink operator is not accurate

Fu Kai created FLINK-22950:
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             Summary: Back-pressure report final sink operator is not accurate
                 Key: FLINK-22950
                 URL: https://issues.apache.org/jira/browse/FLINK-22950
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Metrics
    Affects Versions: 1.13.1
            Reporter: Fu Kai
             Fix For: 1.14.0


We noticed the back-pressure status of the final sink on the job graph is not accurate. It's apparently the final sink operator should receive back-pressure from the sink storage(ElasitcSearch/Kafka), while it's always showing not back-pressured(with value of 0, but always showing 100% busy though).

This is confirmed by switching the sink to be more powerful and without changing any other configurations. We noticed the record publish rate increases significantly.



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