Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/2083
It seems very clumsy to dispose savepoints like that. If that is needed for
a fix currently, then I guess we have to live with that.
Would make sense to make the jar and jobid optional, so that non-custom
cases can dispose the savepoints in the simple way.
Then, we could ad the RocksDB state backend to the jar in the flink
distribution lib folder, so that it is always available and would not need jar
or jobid for disposal. That would give the least user friction...
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