Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/966#issuecomment-127512155
I am pretty much against `postConfigure()`. There are so many life cycle
methods already, we should really not make it more complicated (I think even
`configure()` is a problem, but that's an artifact).
It is not so hard to make it right in the `open()` method, and there are
methods that getOrCreate accumulators, afaik.
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