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https://issues.apache.org/jira/browse/FLINK-2122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14603569#comment-14603569
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Aljoscha Krettek commented on FLINK-2122:
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Why did you close this one?
> Make all internal streaming operators Checkpointable
> ----------------------------------------------------
>
> Key: FLINK-2122
> URL: https://issues.apache.org/jira/browse/FLINK-2122
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Reporter: Aljoscha Krettek
>
> Right now, only user state is checkpointed and restored. This should be
> extended to flink-internal operators such as reducers and windows.
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