Github user HeartSaVioR commented on the pull request:
https://github.com/apache/storm/pull/521#issuecomment-101831525
We may be better to revert mk-transfer-fn to
0666c41387fc11c0422b26ab27ebc38c30fe26af as grouping by task can be handled (or
doesn't need to be handled) from mk-transfer-tuples-handler.
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