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https://issues.apache.org/jira/browse/FLINK-22950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17360950#comment-17360950
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Till Rohrmann commented on FLINK-22950:
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cc [~pnowojski]
> Back-pressure report of 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, Runtime / Task
> Affects Versions: 1.13.1
> Reporter: Fu Kai
> Priority: Major
> 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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