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From "Stephan Ewen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (FLINK-4976) Add a way to abort in flight checkpoints
Date Tue, 08 Nov 2016 23:13:59 GMT

     [ https://issues.apache.org/jira/browse/FLINK-4976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Stephan Ewen resolved FLINK-4976.
    Resolution: Implemented

Done via resolution of the subtasks

> Add a way to abort in flight checkpoints
> ----------------------------------------
>                 Key: FLINK-4976
>                 URL: https://issues.apache.org/jira/browse/FLINK-4976
>             Project: Flink
>          Issue Type: New Feature
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.1.3
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>             Fix For: 1.2.0, 1.1.4
> Currently, a started checkpoint alignment can only be dissolved if a newer checkpoint
comes, or an input becomes closed.
> To cleanly signal downstream tasks that a checkpoint will not be completed, we need to
introduce {{CancellationBarriers}} that can be injected into the stream and dissolve a pending
stream alignment and notify the task that a pending checkpoint was skipped.

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