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https://issues.apache.org/jira/browse/FLINK-18906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17248820#comment-17248820
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Piotr Nowojski commented on FLINK-18906:
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[~xintongsong], I've removed 1.11.3 fix version, as this ticket has never been
merged to release-1.11 branch. It looks like [~jqin] cherry picked only a very
small part of this ticket (one small hotfix) to release-1.11 - a hotfix of
testing code.
> Support checkpointing with multiple input operator chained with sources
> -----------------------------------------------------------------------
>
> Key: FLINK-18906
> URL: https://issues.apache.org/jira/browse/FLINK-18906
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing, Runtime / Task
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
>
> Generalize `CheckpointBarrierHandlers` plus hook in sources to
> `CheckpointBarrierHandlers`.
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