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https://issues.apache.org/jira/browse/FLINK-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14560901#comment-14560901
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Aljoscha Krettek commented on FLINK-2098:
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Is this the reason for the non-deterministic test cases we observed?
> Checkpoint barrier initiation at source is not aligned with snapshotting
> ------------------------------------------------------------------------
>
> Key: FLINK-2098
> URL: https://issues.apache.org/jira/browse/FLINK-2098
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Blocker
> Fix For: 0.9
>
>
> The stream source does not properly align the emission of checkpoint barriers
> with the drawing of snapshots.
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