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https://issues.apache.org/jira/browse/FLINK-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568279#comment-14568279
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ASF GitHub Bot commented on FLINK-2098:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/742#issuecomment-107751723
Looks good all in all. I am preparing a followup pull request that cleans
up a few things, adds comments, and addresses Marton's comments.
One thing I noticed is that all the non-checkpointed sources have a
checkpoint lock in the signature as well.
Should we offer two source interfaces: `SourceFunction` and
`CheckpointedSourceFunction` ?
> 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: Aljoscha Krettek
> 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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