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https://issues.apache.org/jira/browse/FLINK-2081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561084#comment-14561084
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Robert Metzger commented on FLINK-2081:
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Can we come to an agreement here?
I think both approaches are equal. Its a matter of estimating which case is
more frequent.
I'll now implement the {{PersistentKafkaSource}} assuming that
{{restoreState()}} is called before {{open()}}. Whoever changes the order as
part of this issue has to change that in the KafkaSource as well.
> Change order of restore state and open for Streaming Operators
> --------------------------------------------------------------
>
> Key: FLINK-2081
> URL: https://issues.apache.org/jira/browse/FLINK-2081
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
>
> Right now, the order is restore state -> open. Users often set internal state
> in the open method, this would overwrite state that was restored from a
> checkpoint. If we change the order to open -> restore this should not be a
> problem anymore.
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