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https://issues.apache.org/jira/browse/FLINK-2802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maximilian Michels resolved FLINK-2802.
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Resolution: Fixed
Fix Version/s: 0.10
As far as I understand this has been resolved. Resolving but feel free to
reopen.
> Watermark triggered operators cannot progress with cyclic flows
> ---------------------------------------------------------------
>
> Key: FLINK-2802
> URL: https://issues.apache.org/jira/browse/FLINK-2802
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Gyula Fora
> Assignee: Gyula Fora
> Priority: Blocker
> Fix For: 0.10
>
>
> The problem is that we can easily create a cyclic watermark (time) dependency
> in the stream graph which will result in a deadlock for watermark triggered
> operators such as the `WindowOperator`.
> A solution to this could be to emit a Long.MAX_VALUE watermark from the
> iteration sources.
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