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https://issues.apache.org/jira/browse/FLINK-2151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14963362#comment-14963362
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Fabian Hueske commented on FLINK-2151:
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Hi [~wilmer], I am not aware of an effort to implement a Cassandra data sink
for the DataStream API.
Please open a corresponding JIRA issue if you would like to work on this. It
would be good to have a look at the code and describe your approach before
starting with the actual implementation to make sure that you are going in the
right direction.
Cheers, Fabian
> Provide interface to distinguish close() calls in error and regular cases
> -------------------------------------------------------------------------
>
> Key: FLINK-2151
> URL: https://issues.apache.org/jira/browse/FLINK-2151
> Project: Flink
> Issue Type: Improvement
> Components: Local Runtime
> Affects Versions: 0.9
> Reporter: Robert Metzger
>
> I was talking to somebody who is interested in contributing a
> {{flink-cassandra}} connector.
> The connector will create cassandra files locally (on the TaskManagers) and
> bulk-load them in the {{close()}} method.
> For the user functions it is currently not possible to find out whether the
> function is closed due to an error or an regular end.
> The simplest approach would be passing an additional argument (enum or
> boolean) into the close() method, indicating the type of closing.
> But that would break all existing code.
> Another approach would add an interface that has such an extended close
> method {{RichCloseFunction}}.
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