Github user fhueske commented on the pull request: https://github.com/apache/flink/pull/1459#issuecomment-165031211 Hi @guochuanzhi, it looks like your PR does not include any commits of you but just already committed changes. It does also not have a description. Can you please close this PR? If you would like to contribute to Flink, please have a look at the [contribution guidelines](http://flink.apache.org/how-to-contribute.html). Thanks, Fabian
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