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  1. Hadoop HDFS
  2. HDFS-4205

fsck fails with symlinks

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.0.2-alpha, 3.0.0-alpha1
    • 2.1.0-beta, 0.23.9
    • hdfs-client
    • None
    • Reviewed

    Description

      I created a symlink using

      ...
          FileContext fc = FileContext.getFileContext(dst.fs.getUri());
          for (PathData src : srcs) {
            fc.createSymlink(src.path, dst.path, false);
          }
      

      After doing this to create a symlink /foo/too.txt -> /foo/hello.txt, I tried to hdfs fsck and got the following:

      [adi@host01 ~]$ hdfs fsck /
      Connecting to namenode via http://host01:21070
      FSCK started by adi (auth:SIMPLE) from /172.29.122.91 for path / at Fri Nov 16 15:59:18 PST 2012
      FSCK ended at Fri Nov 16 15:59:18 PST 2012 in 3 milliseconds
      hdfs://host01:21020/foo/hello.txt
      
      
      Fsck on path '/' FAILED
      

      It's very surprising that an unprivileged user can run code which so easily causes a fundamental administration tool to fail.

      Attachments

        1. HDFS-4205-2.patch
          4 kB
          Jason Darrell Lowe
        2. HDFS-4205.patch
          4 kB
          Jason Darrell Lowe

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            jlowe Jason Darrell Lowe
            adi2 Andy Isaacson
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              Updated:
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