Github user mattyb149 commented on the pull request: https://github.com/apache/nifi/pull/180#issuecomment-177632224 @rpmiskin That's a good idea for the ES ControllerService and ReportingTask, I hadn't considered the ReportingTask so I didn't think there would be enough need for the ControllerService. I think a breaking change would be ok in the future if we have a migration path (moving the properties from the processor to the controller service). I'd like to get these out for 0.5.0 so the community can use them, then we can gather feedback and see if/when we want to go the ControllerService route. What do you think? Also I've updated this PR to incorporate your comment on logging, and added more unit tests to exercise the non-happy-path processing.
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