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  1. Hadoop HDFS
  2. HDFS-6729

Support maintenance mode for DN

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • 2.5.0
    • None
    • datanode
    • None

    Description

      Some maintenance works (e.g., upgrading RAM or add disks) on DataNode only takes a short amount of time (e.g., 10 minutes). In these cases, the users do not want to report missing blocks on this DN because the DN will be online shortly without data lose. Thus, we need a maintenance mode for a DN so that maintenance work can be carried out on the DN without having to decommission it or the DN being marked as dead.

      Attachments

        1. HDFS-6729.000.patch
          10 kB
          Lei (Eddy) Xu
        2. HDFS-6729.001.patch
          10 kB
          Lei (Eddy) Xu
        3. HDFS-6729.002.patch
          30 kB
          Lei (Eddy) Xu
        4. HDFS-6729.003.patch
          12 kB
          Lei (Eddy) Xu
        5. HDFS-6729.004.patch
          36 kB
          Lei (Eddy) Xu
        6. HDFS-6729.005.patch
          39 kB
          Lei (Eddy) Xu

        Issue Links

          duplicates

          New Feature - A new feature of the product, which has yet to be developed. HDFS-7877 [Umbrella] Support maintenance state for datanodes

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              eddyxu Lei (Eddy) Xu
              eddyxu Lei (Eddy) Xu
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              Dates

                Created:
                Updated:
                Resolved: