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  1. Hadoop HDFS
  2. HDFS-11100

Recursively deleting file protected by sticky bit should fail


    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 2.6.0
    • Fix Version/s: 3.0.0-alpha4
    • Component/s: fs
    • Labels:
    • Target Version/s:
    • Hadoop Flags:
      Incompatible change, Reviewed
    • Release Note:
      Changed the behavior of removing directories with sticky bits, so that it is closer to what most Unix/Linux users would expect.


      Recursively deleting a directory that contains files or directories protected by sticky bit should fail but it doesn't in HDFS. In the case below, /tmp/test/sticky_dir/f2 is protected by sticky bit, thus recursive deleting /tmp/test/sticky_dir should fail.

      + hdfs dfs -ls -R /tmp/test
      drwxrwxrwt   - jzhuge supergroup          0 2016-11-03 18:08 /tmp/test/sticky_dir
      -rwxrwxrwx   1 jzhuge supergroup          0 2016-11-03 18:08 /tmp/test/sticky_dir/f2
      + sudo -u hadoop hdfs dfs -rm -skipTrash /tmp/test/sticky_dir/f2
      rm: Permission denied by sticky bit: user=hadoop, path="/tmp/test/sticky_dir/f2":jzhuge:supergroup:-rwxrwxrwx, parent="/tmp/test/sticky_dir":jzhuge:supergroup:drwxrwxrwt
      + sudo -u hadoop hdfs dfs -rm -r -skipTrash /tmp/test/sticky_dir
      Deleted /tmp/test/sticky_dir

      Centos 6.4 behavior:

      $ ls -lR /tmp/test
      total 4
      drwxrwxrwt 2 systest systest 4096 Nov  3 18:36 sbit
      total 0
      -rw-rw-rw- 1 systest systest 0 Nov  2 13:45 f2
      $ sudo -u mapred rm -fr /tmp/test/sbit
      rm: cannot remove `/tmp/test/sbit/f2': Operation not permitted
      $ chmod -t /tmp/test/sbit
      $ sudo -u mapred rm -fr /tmp/test/sbit


        1. HDFS-11100.001.patch
          7 kB
          John Zhuge
        2. hdfs_cmds
          1 kB
          John Zhuge
        3. HDFS-11100.002.patch
          7 kB
          John Zhuge
        4. HDFS-11100.003.patch
          7 kB
          John Zhuge
        5. HDFS-11100.004.patch
          10 kB
          John Zhuge
        6. HDFS-11100.005.patch
          10 kB
          John Zhuge



            • Assignee:
              jzhuge John Zhuge
              jzhuge John Zhuge
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