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https://issues.apache.org/jira/browse/FLINK-36571?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Nowojski closed FLINK-36571.
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Resolution: Fixed
merged commit ed50ae2 into apache:master
abc070b1ed0 into release-1.20
d7bd49a3c92 into release-1.19
Thanks for the fix [~hong]!
> Flink dashboard does not show Busy / Backpressure
> --------------------------------------------------
>
> Key: FLINK-36571
> URL: https://issues.apache.org/jira/browse/FLINK-36571
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Web Frontend
> Affects Versions: 1.19.0, 1.20.0
> Reporter: Hong Liang Teoh
> Assignee: Hong Liang Teoh
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.0.0, 1.19.2, 1.20.1
>
> Attachments: image-2024-10-18-18-11-37-213.png
>
>
> h3. Problem
> Flink dashboard always show 0 or N/A for Busy(max) Backpressure(max).
> Whenever there is any value that is non-zero, the Flink dashboard will show
> "N/A".
> !image-2024-10-18-18-11-37-213.png!
> h3. Replicate
> Start any job and cause Busy / Backpressure to be non-zero.
> h3. Root Cause
> This commit has changed the isValid() method to return "false" when any
> non-zero / non-undefined number is passed in
> https://github.com/apache/flink/commit/e07545e458bd22099244a353ac29477ca3a13811#diff-276a0ff24ed939126918cbe46d3911307e76335a3cb46f057e546d9bdf8dcde3L83
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