Details

    • Type: New Feature New Feature
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.20.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Incompatible change, Reviewed
    • Release Note:
      Introduced new dfsadmin command saveNamespace to command the name service to do an immediate save of the file system image.

      Description

      It would be useful to have an admin command that saves current namespace.
      This command can be used before regular (planned) cluster shutdown.
      The command will save the namespace into storage directory(s) and reset the name-node journal (edits file).
      It will also reduce name-node startup time, because edits do not need to be digest.

      1. saveNamespace.patch
        15 kB
        Konstantin Shvachko
      2. saveNamespace.patch
        14 kB
        Konstantin Shvachko
      3. saveNamespace.patch
        14 kB
        Konstantin Shvachko

        Issue Links

          Activity

          Konstantin Shvachko created issue -
          Konstantin Shvachko made changes -
          Field Original Value New Value
          Attachment saveNamespace.patch [ 12395759 ]
          Konstantin Shvachko made changes -
          Status Open [ 1 ] Patch Available [ 10002 ]
          Konstantin Shvachko made changes -
          Attachment saveNamespace.patch [ 12395873 ]
          Tsz Wo Nicholas Sze made changes -
          Hadoop Flags [Incompatible change]
          Konstantin Shvachko made changes -
          Attachment saveNamespace.patch [ 12395919 ]
          Konstantin Shvachko made changes -
          Status Patch Available [ 10002 ] Open [ 1 ]
          Konstantin Shvachko made changes -
          Hadoop Flags [Incompatible change] [Incompatible change, Reviewed]
          Status Open [ 1 ] Patch Available [ 10002 ]
          Konstantin Shvachko made changes -
          Hadoop Flags [Reviewed, Incompatible change] [Incompatible change, Reviewed]
          Resolution Fixed [ 1 ]
          Status Patch Available [ 10002 ] Resolved [ 5 ]
          Robert Chansler made changes -
          Hadoop Flags [Reviewed, Incompatible change] [Incompatible change, Reviewed]
          Release Note Introduced new dfsadmin command saveNamespace to command the name service to do an immediate save of the file system image.
          Konstantin Shvachko made changes -
          Link This issue relates to HADOOP-5501 [ HADOOP-5501 ]
          Nigel Daley made changes -
          Status Resolved [ 5 ] Closed [ 6 ]
          Owen O'Malley made changes -
          Component/s dfs [ 12310710 ]
          dhruba borthakur made changes -
          Link This issue relates to HDFS-1508 [ HDFS-1508 ]

            People

            • Assignee:
              Konstantin Shvachko
              Reporter:
              Konstantin Shvachko
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development