Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-1458

Improve checkpoint performance by avoiding unnecessary image downloads

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.22.0
    • Fix Version/s: 0.23.0
    • Component/s: namenode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      If secondary namenode could verify that the image it has on its disk is the same as the one in the primary NameNode, it could skip downloading the image from the primary NN, thus completely eliminating the image download overhead.

        Attachments

        1. checkpoint-checkfsimageissame.patch
          10 kB
          Yilei Lu
        2. trunkNoDownloadImage.patch
          6 kB
          Hairong Kuang
        3. trunkNoDownloadImage1.patch
          9 kB
          Hairong Kuang
        4. trunkNoDownloadImage2.patch
          9 kB
          Hairong Kuang
        5. trunkNoDownloadImage3.patch
          9 kB
          Hairong Kuang

          Issue Links

            Activity

              People

              • Assignee:
                hairong Hairong Kuang
                Reporter:
                hairong Hairong Kuang
              • Votes:
                0 Vote for this issue
                Watchers:
                7 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: