Uploaded image for project: 'Hadoop HDFS'
  1. Hadoop HDFS
  2. HDFS-14293

Increase Default Size of dfs.stream-buffer-size

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Open
    • Minor
    • Resolution: Unresolved
    • 3.2.0
    • None
    • datanode
    • None

    Description

      For many years (7+) now, the JDK has been using a default buffer size of 8192 bytes. Hadoop still defaults to a size half of that. The default is dfs.stream-buffer-size is 4096 bytes.

      https://hadoop.apache.org/docs/r2.8.0/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml

      Please increase default size to 8192.

      Attachments

        Issue Links

          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HDFS-14294 Deprecate DFSUtilClient#getSmallBufferSize

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

          Activity

            People

              Unassigned Unassigned
              belugabehr David Mollitor
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated: