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  1. Hadoop HDFS
  2. HDFS-11419 BlockPlacementPolicyDefault is choosing datanode in an inefficient way
  3. HDFS-11998

Enable DFSNetworkTopology as default

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.9.0, 3.0.0-alpha4
    • namenode
    • None
    • Reviewed

    Description

      HDFS-11530 has made it configurable to use DFSNetworkTopology, and still uses NetworkTopology as default.

      Given the stress testing in HDFS-11923 which shows the correctness of DFSNetworkTopology, and the performance testing in HDFS-11535 which shows how DFSNetworkTopology can outperform NetworkTopology. I think we are at the point where I can and should enable DFSNetworkTopology as default.

      Any comments/thoughts are more than welcome!

      Attachments

        1. HDFS-11998.001.patch
          0.6 kB
          Chen Liang
        2. HDFS-11998.002.patch
          5 kB
          Chen Liang

        Issue Links

          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-12368 [branch-2] Enable DFSNetworkTopology as default

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

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-13418 NetworkTopology should be configurable when enable DFSNetworkTopology

          • Major - Major loss of function.
          • Resolved

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            People

              vagarychen Chen Liang
              vagarychen Chen Liang
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              Dates

                Created:
                Updated:
                Resolved: