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https://issues.apache.org/jira/browse/FLINK-2646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kostas Kloudas reassigned FLINK-2646:
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Assignee: (was: Kostas Kloudas)
> Rich functions should provide a method "closeAfterFailure()"
> ------------------------------------------------------------
>
> Key: FLINK-2646
> URL: https://issues.apache.org/jira/browse/FLINK-2646
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.10.0
> Reporter: Stephan Ewen
> Fix For: 1.0.0
>
>
> Right now, the {{close()}} method of rich functions is invoked in case of
> proper completion, and in case of canceling in case of error (to allow for
> cleanup).
> In certain cases, the user function needs to know why it is closed, whether
> the task completed in a regular fashion, or was canceled/failed.
> I suggest to add a method {{closeAfterFailure()}} to the {{RichFunction}}. By
> default, this method calls {{close()}}. The runtime is the changed to call
> {{close()}} as part of the regular execution and {{closeAfterFailure()}} in
> case of an irregular exit.
> Because by default all cases call {{close()}} the change would not be API
> breaking.
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