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https://issues.apache.org/jira/browse/FLINK-19680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Piotr Nowojski closed FLINK-19680.
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Resolution: Fixed
Merged to master as efe588e063..eb24d38459
> Add CheckpointBarrierAnnouncement priority message
> --------------------------------------------------
>
> Key: FLINK-19680
> URL: https://issues.apache.org/jira/browse/FLINK-19680
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing
> Affects Versions: 1.12.0
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
>
> When an aligned checkpoint barrier arrives in an input channel, we should
> enqueue at the head of the queue priority event, announcing arrival of the
> checkpoint barrier.
> Such announcement event should be propagated to the
> `CheckpointBarrierHandler`. Based on that, `CheckpointBarrierHandler` will be
> able to implement logic of time outing from aligned checkpoint to unaligned
> checkpoint.
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