Github user zhijiangW commented on the issue: https://github.com/apache/flink/pull/5317 @NicoK , I found most of the codes in this PR are already merged into master by commit `0093bcbe771f296baf3857ef15fe7ec9b22bbc34` in your `FLINK-8425`. Maybe I only need to add the `config.md` in this PR.
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