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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

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: namenode
    • Labels:
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      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

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              • Assignee:
                szetszwo Tsz-wo Sze
                Reporter:
                szetszwo Tsz-wo Sze
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                • Created:
                  Updated:
                  Resolved: