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Posted to issues@flink.apache.org by "Zhu Zhu (JIRA)" <ji...@apache.org> on 2019/04/17 06:18:00 UTC

[jira] [Commented] (FLINK-12068) Backtrack fail over regions if intermediate results are unavailable

    [ https://issues.apache.org/jira/browse/FLINK-12068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16819761#comment-16819761 ] 

Zhu Zhu commented on FLINK-12068:
---------------------------------

Per discussion with [~Zentol], I will work on the implementation and Chesnay will help to review it.

> Backtrack fail over regions if intermediate results are unavailable
> -------------------------------------------------------------------
>
>                 Key: FLINK-12068
>                 URL: https://issues.apache.org/jira/browse/FLINK-12068
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Coordination
>            Reporter: Till Rohrmann
>            Assignee: Zhu Zhu
>            Priority: Major
>
> The batch failover strategy needs to be able to backtrack fail over regions if an intermediate result is unavailable. Either by explicitly checking whether the intermediate result partition is available or via a special exception indicating that a result partition is no longer available.



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