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Posted to issues@flink.apache.org by "Hong Liang Teoh (Jira)" <ji...@apache.org> on 2024/10/18 17:13:00 UTC

[jira] [Created] (FLINK-36571) Flink dashboard does not show Busy / Backpressure

Hong Liang Teoh created FLINK-36571:
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             Summary: 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: 1.20.0, 1.19.0
            Reporter: Hong Liang Teoh
             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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