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Posted to issues@flink.apache.org by "Zhu Zhu (Jira)" <ji...@apache.org> on 2020/10/19 12:39:00 UTC

[jira] [Commented] (FLINK-19712) Pipelined region failover should skip restarting tasks in CREATED

    [ https://issues.apache.org/jira/browse/FLINK-19712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17216683#comment-17216683 ] 

Zhu Zhu commented on FLINK-19712:
---------------------------------

cc [~trohrmann] [~azagrebin]

> Pipelined region failover should skip restarting tasks in CREATED
> -----------------------------------------------------------------
>
>                 Key: FLINK-19712
>                 URL: https://issues.apache.org/jira/browse/FLINK-19712
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Coordination
>    Affects Versions: 1.12.0
>            Reporter: Zhu Zhu
>            Priority: Major
>             Fix For: 1.12.0
>
>
> When a task fails and it is pipelined region failover strategy, all tasks in the region of the failed task and in the downstream regions will be canceled for later re-scheduling. However, these tasks can be still in CREATED state so that there is no need to cancel these tasks. Skipping canceling these tasks can speed up the failover and reduce a lot of unnecessary CANCELING logs.



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