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  1. Hadoop HDFS
  2. HDFS-347 DFS read performance suboptimal when client co-located on nodes with data
  3. HDFS-4453

Make a simple doc to describe the usage and design of the shortcircuit read feature

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • None
    • datanode, hdfs-client
    • None
    • Reviewed

    Description

      It would be nice to have a document to describe the configuration and design of this feature. Also its relationship with previous short circuit read implementation(HDFS-2246), for example, can they co-exist, or this one is planed to replaces HDFS-2246, or it can fall back on HDFS-2246 when unix domain socket is not supported.

      Attachments

        1. HDFS-4453.001.patch
          3 kB
          Colin McCabe
        2. HDFS-4453.002.patch
          3 kB
          Colin McCabe
        3. HDFS-4453.003.patch
          3 kB
          Colin McCabe
        4. HDFS-4453.004.patch
          3 kB
          Colin McCabe

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-9286 documentation in NativeLibraries.apt.vm is out of date for branch-2 and later

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Activity

            People

              cmccabe Colin McCabe
              brandonli Brandon Li
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              Dates

                Created:
                Updated:
                Resolved: