Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1387#issuecomment-158416101
I ran into that issue a while back. The problem was that you emit elements
that have the name/tag of the split stream (to use the split selector) and over
that, you run the regular partitioner.
Splitting this into two steps should work: Splitting, having a mapper that
removes the "split tag" and then doing the field partitioning.
Would be nice to make this nice in Flink, but it is tricky. Not all
functions go though a collector, and not all collectors can split.
---
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 [email protected] or file a JIRA ticket
with INFRA.
---
