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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4271) There is no way to set parallelism of operators produced by CoGroupedStreams
Date Tue, 02 Aug 2016 15:31:20 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4271?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15404193#comment-15404193
] 

ASF GitHub Bot commented on FLINK-4271:
---------------------------------------

Github user aljoscha commented on the issue:

    https://github.com/apache/flink/pull/2305
  
    @StephanEwen I think technically it doesn't break the API because `SingleOutputStreamOperator`
is a subclass of `DataStream`, right? (It might break binary compatibility though, because
the signature of the method changes) It might only be the checker that is to sensitive.


> There is no way to set parallelism of operators produced by CoGroupedStreams
> ----------------------------------------------------------------------------
>
>                 Key: FLINK-4271
>                 URL: https://issues.apache.org/jira/browse/FLINK-4271
>             Project: Flink
>          Issue Type: Bug
>          Components: DataStream API
>            Reporter: Wenlong Lyu
>            Assignee: Jark Wu
>
> Currently, CoGroupStreams package the map/keyBy/window operators with a human friendly
interface, like: dataStreamA.cogroup(streamB).where(...).equalsTo().window().apply(), both
the intermediate operators and final window operators can not be accessed by users, and we
cannot set attributes of the operators, which make co-group hard to use in production environment.



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