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Posted to issues@flink.apache.org by "Piotr Nowojski (Jira)" <ji...@apache.org> on 2020/05/16 08:46:00 UTC

[jira] [Closed] (FLINK-17719) Provide ChannelStateReader#hasStates for hints of reading channel states

     [ https://issues.apache.org/jira/browse/FLINK-17719?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski closed FLINK-17719.
----------------------------------
    Fix Version/s: 1.11.0
       Resolution: Fixed

Merged to master as 2b42209dd6

> Provide ChannelStateReader#hasStates for hints of reading channel states
> ------------------------------------------------------------------------
>
>                 Key: FLINK-17719
>                 URL: https://issues.apache.org/jira/browse/FLINK-17719
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Checkpointing, Runtime / Task
>            Reporter: Zhijiang
>            Assignee: Zhijiang
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.11.0
>
>
> Currently we rely on whether unaligned checkpoint is enabled to determine whether to read recovered states during task startup, then it will block the requirements of recovery from previous unaligned states even though the current mode is aligned.
> We can make `ChannelStateReader` provide the hint whether there are any channel states to be read during startup, then we will never lose any chances to recover from them.



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