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Posted to issues@flink.apache.org by "Roman Khachatryan (Jira)" <ji...@apache.org> on 2022/03/15 17:16:00 UTC

[jira] [Assigned] (FLINK-26063) [Changelog] Incorrect key group logged for PQ.poll and remove

     [ https://issues.apache.org/jira/browse/FLINK-26063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Roman Khachatryan reassigned FLINK-26063:
-----------------------------------------

    Assignee: Roman Khachatryan

> [Changelog] Incorrect key group logged for PQ.poll and remove
> -------------------------------------------------------------
>
>                 Key: FLINK-26063
>                 URL: https://issues.apache.org/jira/browse/FLINK-26063
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / State Backends
>    Affects Versions: 1.15.0
>            Reporter: Roman Khachatryan
>            Assignee: Roman Khachatryan
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.15.0, 1.16.0
>
>
> Key group is logged so that state changes can be re-distributed or shuffled.
> It is currently obtained from keyContext during poll() and remove() operations.
> However, keyContext is not updated when dequeing processing time timers.
> The impact is relatively small for remove(): in the worst case, the operation will be ignored.
> poll() should probably be replaced with remove() anyways - see FLINK-26062.
> One way to solve this problem is to extract key group from the polled element - if it is a timer.
> cc: [~masteryhx], [~ym], [~yunta]



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