Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/4301
Quick comment for my own clarification: when restoring from a 1.3.x
savepoint, the new assignment logic will not be used, right? In Flink 1.3.x
there is no dynamic partition discovery and so when restarting from state we
have to strictly stick to what we have in the (operator) state to avoid reading
partitions on multiple subtasks.
If this is true, this also means that folks that have savepoints on 1.3.x
cannot them if they want to benefit from this fix, right?
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