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From lamber-ken <...@git.apache.org>
Subject [GitHub] flink pull request #6243: [FLINK-9707] Support concurrent directory creation...
Date Wed, 04 Jul 2018 03:01:29 GMT
Github user lamber-ken commented on a diff in the pull request:

    https://github.com/apache/flink/pull/6243#discussion_r199997861
  
    --- Diff: flink-core/src/main/java/org/apache/flink/core/fs/local/LocalFileSystem.java
---
    @@ -254,7 +254,7 @@ else if (file.exists() && !file.isDirectory()) {
     		}
     		else {
     			File parent = file.getParentFile();
    -			return (parent == null || mkdirsInternal(parent)) && file.mkdir();
    +			return (parent == null || mkdirsInternal(parent)) && (file.mkdir() || file.isDirectory());
    --- End diff --
    
    emm, why not use `synchronized` to prevent? 


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