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https://issues.apache.org/jira/browse/FLINK-2647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen resolved FLINK-2647.
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Resolution: Fixed
Fixed via 407d74fd004bbd11febfa553c381e828115d8bfb
> Stream operators need to differentiate between close() and dispose()
> --------------------------------------------------------------------
>
> Key: FLINK-2647
> URL: https://issues.apache.org/jira/browse/FLINK-2647
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 0.10
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.10
>
>
> Currently, operators make no distinction between closing (which needs to emit
> remaining buffered data) and disposing (releasing resources).
> In case of a failure, we want to only release the resources, and not attempt
> to send pending buffered data.
> Effectively, streaming operators need to implement these methods then:
> - open()
> - processRecord()
> - processWatermark()
> - close()
> - dispose()
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