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https://issues.apache.org/jira/browse/FLINK-2861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15013956#comment-15013956
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ASF GitHub Bot commented on FLINK-2861:
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Github user mjsax commented on the pull request:
https://github.com/apache/flink/pull/1387#issuecomment-158126101
In `FlinkTopologyBuilder` I had to introduce a *token* for operator names
which is used in `WrapperSetupHelper` to get the original name of an operator
(Flink changes operator names when chaining happens). This is quite hacky. If
anybody has a better idea how to solve this, please let me know.
> Fields grouping on split streams fails
> --------------------------------------
>
> Key: FLINK-2861
> URL: https://issues.apache.org/jira/browse/FLINK-2861
> Project: Flink
> Issue Type: Bug
> Components: Storm Compatibility
> Affects Versions: 0.10.0
> Reporter: Stephan Ewen
>
> Using split streams works for shuffle grouping, but not for Fields grouping.
> The reason is that the KeySelector expects an array, and the given type is
> the {{SplitStreamType}}.
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