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  1. HBase
  2. HBASE-14532

[book] dfs.client.read.shortcircuit is referenced as hbase-site.xml config and not described in section 7

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • None
    • 2.0.0
    • documentation
    • None
    • Reviewed

    Description

      After trying to figure out whether shortcircuit reads would work on my system, I studied the book and found conflicting information.

      It's suggested in section 92.2, that dfs.client.read.shortcircuit is an option in hbase-site.xml, but the supposedly complete default configuration in section 7 does not include this setting. This leads to confusion on whether it's sufficient to enable this setting in hdfs-site.xml, or whether it needs to be added to both configurations.

      Attachments

        1. HBASE-14532.patch
          2 kB
          M Linville
        2. HBASE-14532-v1.patch
          2 kB
          M Linville

        Issue Links

          causes

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-25449 'dfs.client.read.shortcircuit' should not be set in hbase-default.xml

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

          Sub-task - The sub-task of the issue HBASE-22387 Evaluate the get/scan performance after reading HFile block into offheap directly

          • Major - Major loss of function.
          • Closed

          Activity

            People

              misty M Linville
              RPCMoritz Rick Moritz
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              Dates

                Created:
                Updated:
                Resolved: