Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-3721

hsync support broke wire compatibility

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Critical Critical
    • Resolution: Fixed
    • Affects Version/s: 2.0.0-alpha
    • Fix Version/s: 2.0.2-alpha
    • Component/s: datanode, hdfs-client
    • Labels:
      None
    • Target Version/s:
    • Hadoop Flags:
      Reviewed

      Description

      HDFS-744 added support for hsync to the data transfer wire protocol. However, it actually broke wire compatibility: if the client has hsync support but the server does not, the client cannot read or write data on the old cluster.

      1. hdfs-3721.txt
        58 kB
        Aaron T. Myers
      2. hdfs-3721.txt
        58 kB
        Aaron T. Myers
      3. hdfs-3721.txt
        53 kB
        Todd Lipcon

        Issue Links

          Activity

          Arun C Murthy made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Arun C Murthy made changes -
          Affects Version/s 2.0.0-alpha [ 12320353 ]
          Affects Version/s 2.1.0-alpha [ 12321440 ]
          Aaron T. Myers made changes -
          Status Patch Available [ 10002 ] Resolved [ 5 ]
          Hadoop Flags Reviewed [ 10343 ]
          Fix Version/s 2.2.0-alpha [ 12322472 ]
          Resolution Fixed [ 1 ]
          Aaron T. Myers made changes -
          Attachment hdfs-3721.txt [ 12540129 ]
          Aaron T. Myers made changes -
          Assignee Todd Lipcon [ tlipcon ] Aaron T. Myers [ atm ]
          Aaron T. Myers made changes -
          Attachment hdfs-3721.txt [ 12539159 ]
          Todd Lipcon made changes -
          Status Open [ 1 ] Patch Available [ 10002 ]
          Todd Lipcon made changes -
          Attachment hdfs-3721.txt [ 12537798 ]
          Todd Lipcon made changes -
          Description HDFS-744 added support for hsync to the data transfer wire protocol. However, it actually broke wire compatibility: if the client has hsync support but the server does not, the client cannot write to the old cluster. HDFS-744 added support for hsync to the data transfer wire protocol. However, it actually broke wire compatibility: if the client has hsync support but the server does not, the client cannot read or write data on the old cluster.
          Todd Lipcon made changes -
          Field Original Value New Value
          Link This issue is broken by HDFS-744 [ HDFS-744 ]
          Todd Lipcon created issue -

            People

            • Assignee:
              Aaron T. Myers
              Reporter:
              Todd Lipcon
            • Votes:
              0 Vote for this issue
              Watchers:
              14 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development