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https://issues.apache.org/jira/browse/FLINK-4971?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weijie Guo closed FLINK-4971.
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Resolution: Invalid
> Unify Stream Sinks and OutputFormats
> ------------------------------------
>
> Key: FLINK-4971
> URL: https://issues.apache.org/jira/browse/FLINK-4971
> Project: Flink
> Issue Type: Sub-task
> Components: API / DataSet, API / DataStream
> Reporter: Stephan Ewen
> Priority: Major
>
> Right now, many output connectors exist in two variants: OutputFormat and
> StreamSink.
> Wrapping an output format to a stream sink is not quite possible, because
> output formats cannot be cleanly integrated into checkpointing. For example,
> they have no hook to ensure that data is written/persisted at the time of a
> checkpoint.
> We should try and see if we can make both one, or at least make the
> OutputFormats such that they can be wrapped into a stream sink and behave
> well with respect to checkpointing.
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