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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2457) Integrate Tuple0
Date Tue, 04 Aug 2015 17:18:04 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14653998#comment-14653998
] 

ASF GitHub Bot commented on FLINK-2457:
---------------------------------------

Github user mjsax commented on the pull request:

    https://github.com/apache/flink/pull/983#issuecomment-127680821
  
    I just tried using `TypeSerializerOutputFormat` for a DataSet sink. There is no error.
The system only creates an empty file. How can I force the usage of a file-channel (instead
of network or in-memory chaining) between two mappers?


> Integrate Tuple0
> ----------------
>
>                 Key: FLINK-2457
>                 URL: https://issues.apache.org/jira/browse/FLINK-2457
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Matthias J. Sax
>            Assignee: Matthias J. Sax
>            Priority: Minor
>
> Tuple0 is not cleanly integrated:
>   - missing serialization/deserialization support in runtime
>  - Tuple.getTupleClass(int arity) cannot handle arity zero, ie, cannot create an instance
of Tuple0
> Tuple0 is currently only used in Python API, but will be integrated into Storm compatibility,
too.



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