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https://issues.apache.org/jira/browse/FLINK-36287?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arvid Heise resolved FLINK-36287.
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Fix Version/s: 2.0-preview
Release Note: Exactly once sinks don't use unaligned checkpoints anymore
to send metadata around transactions.
Resolution: Fixed
Merged into main as 7976880..9d21878.
> Sink with topologies should not participate in UC
> -------------------------------------------------
>
> Key: FLINK-36287
> URL: https://issues.apache.org/jira/browse/FLINK-36287
> Project: Flink
> Issue Type: Bug
> Reporter: Arvid Heise
> Assignee: Arvid Heise
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.0-preview
>
>
> When the sink writer and committer are not chained, it's possible that
> committables become part of the channel state. However, then it's possible
> that they are not received before notifyCheckpointComplete. Further, the
> contract of notifyCheckpointComplete dictates that all side effects need to
> be committed or we fail on notifyCheckpointComplete. This contract is
> essential to final checkpoints.
> We can change by disallowing channel state within sinks.
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