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  1. Hadoop HDFS
  2. HDFS-2802 Support for RW/RO snapshots in HDFS
  3. HDFS-4125

Use a persistent data structure for snapshots

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • None
    • None
    • namenode
    • None

    Description

      There is a well-known data structure supporting

      • O(1) snapshot creation,
      • O(1) access slowdown, and
      • O(1) modification space and time.

      See http://www.cs.cmu.edu/~sleator/papers/Persistence.htm

      Attachments

        1. h4125_20121114b.patch
          48 kB
          Tsz-wo Sze
        2. h4125_20121114.patch
          14 kB
          Tsz-wo Sze

        Issue Links

          duplicates

          Sub-task - The sub-task of the issue HDFS-4103 Support O(1) snapshot creation

          • Major - Major loss of function.
          • Resolved
          is related to

          Sub-task - The sub-task of the issue HDFS-4177 Add a snapshot parameter to INodeDirectory.getChildrenList()

          • Major - Major loss of function.
          • Resolved

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              szetszwo Tsz-wo Sze
              szetszwo Tsz-wo Sze
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              Dates

                Created:
                Updated:
                Resolved: