Github user koeninger commented on the issue:
https://github.com/apache/spark/pull/15102
You should not be assuming 0 for a starting offset for partitions you've
just learned about. You should be asking the underlying driver consumer what
its position is. This is yet another argument in favor of keeping the
implementations the same until they have to be different, because the existing
implementation at least tries to do this correctly.
My bigger concern is that it looks like you guys are continuing to hack in
a particular direction, without addressing my points or answering whether
you're willing to let me help work on this.
Have you made up your mind?
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