Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/2237
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GitHub user zentol opened a pull request:
https://github.com/apache/flink/pull/2237
[FLINK-4206][metrics] Remove alphanumeric name restriction
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zentol/flink 4206_me_so_special
