Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/5236
I'm sorry because my earlier comment on the Jira issue wasn't very clear.
We might have to take a step back here and think about what we want to achieve.
When I mentioned that an extra bit of state could be kept I wasn't
suggesting that we add this to Flink proper, but that a user could do this.
Adding it to Flink proper introduced overhead for all users: keeping that extra
bit of state can grow space requirements by quite a bit and some users are
already struggling with timer state size and we need to add the possibility of
storing timers in RocksDB.
What do you think?
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