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Posted to issues@flink.apache.org by "Matthias (Jira)" <ji...@apache.org> on 2021/01/29 11:11:00 UTC

[jira] [Assigned] (FLINK-13550) Support for CPU FlameGraphs in new web UI

     [ https://issues.apache.org/jira/browse/FLINK-13550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias reassigned FLINK-13550:
--------------------------------

    Assignee:     (was: Alexander Fedulov)

> Support for CPU FlameGraphs in new web UI
> -----------------------------------------
>
>                 Key: FLINK-13550
>                 URL: https://issues.apache.org/jira/browse/FLINK-13550
>             Project: Flink
>          Issue Type: New Feature
>          Components: Runtime / REST, Runtime / Web Frontend
>            Reporter: David Morávek
>            Priority: Major
>
> For a better insight into a running job, it would be useful to have ability to render a CPU flame graph for a particular job vertex.
> Flink already has a stack-trace sampling mechanism in-place, so it should be straightforward to implement.
> This should be done by implementing a new endpoint in REST API, which would sample the stack-trace the same way as current BackPressureTracker does, only with a different sampling rate and length of sampling.
> [Here|https://www.youtube.com/watch?v=GUNDehj9z9o] is a little demo of the feature.



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