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Details

    • Sub-task
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • None
    • 2.1.0-beta
    • datanode
    • None

    Description

      In cluster-testing HDFS-347, we found that in clusters where the MR job doesn't run as the same user as HDFS, clients wouldn't use short circuit read because of a 'permission denied' error connecting to the socket. It turns out that, in order to connect to a socket, clients need write permissions on the socket file.

      The DN should set these permissions automatically after it creates the socket.

      Attachments

        1. HDFS-4485.001.patch
          4 kB
          Colin McCabe
        2. HDFS-4485.003.patch
          1 kB
          Colin McCabe

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            cmccabe Colin McCabe
            tlipcon Todd Lipcon
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              Updated:
              Resolved:

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