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From "Roman Khachatryan (Jira)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-23137) State ownership: prevent private state deletion on JM
Date Fri, 09 Jul 2021 21:38:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-23137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Roman Khachatryan updated FLINK-23137:
--------------------------------------
    Summary: State ownership: prevent private state deletion on JM  (was: State ownership:
disable discarding and ref counting state of ChangelogStateBackendHandle on JM)

> State ownership: prevent private state deletion on JM
> -----------------------------------------------------
>
>                 Key: FLINK-23137
>                 URL: https://issues.apache.org/jira/browse/FLINK-23137
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / State Backends
>            Reporter: Roman Khachatryan
>            Assignee: Zakelly Lan
>            Priority: Major
>             Fix For: 1.14.0
>
>
> TM should own changelog backend state to prevent re-uploading state on checkpoint abortion
(or missing confirmation). A simpler solution to only own aborted state is less maintanable
in the long run.
> For that, on JM side, ChangelogStateBackendHandle shouldn't discard and *nor register
any shared state*.
>  
> Ticket for TM-side: FLINK-23139
>  
> See [state ownership design doc|https://docs.google.com/document/d/1NJJQ30P27BmUvD7oa4FChvkYxMEgjRPTVdO1dHLl_9I/edit?usp=sharing]



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