GitHub user greghogan opened a pull request: https://github.com/apache/flink/pull/4350
[FLINK-7204] [core] CombineHint.NONE FLINK-3477 added a hash-combine preceding the reducer configured with CombineHint.HASH or CombineHint.SORT (default). In some cases it may be useful to disable the combiner in ReduceNode by specifying a new CombineHint.NONE value. We don't currently have unit tests for this part of the code but I'm happy to discuss and add some. You can merge this pull request into a Git repository by running: $ git pull https://github.com/greghogan/flink 7204_combinehint_none Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/4350.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #4350 ---- commit d08284a61d3af58cb28b47a3190c4dc31b62fa8b Author: Greg Hogan <c...@greghogan.com> Date: 2017-07-16T11:24:59Z [FLINK-7204] [core] CombineHint.NONE FLINK-3477 added a hash-combine preceding the reducer configured with CombineHint.HASH or CombineHint.SORT (default). In some cases it may be useful to disable the combiner in ReduceNode by specifying a new CombineHint.NONE value. ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---