Github user markap14 commented on the issue:
https://github.com/apache/nifi/pull/2326
@jasper-k @joewitt I think I am ok with this change. I do tend to expect
Kafka keys to be unique because otherwise Kafka may lose the data. However, I
know there are use cases where some users want to use the same key anyway, so
given the apt description in the property this is probably a good improvement.
Will merge to master.---
