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  1. Hadoop HDFS
  2. HDFS-12171

Reduce IIP object allocations for inode lookup

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.7.0
    • 2.9.0, 3.0.0-beta1, 2.8.3
    • namenode
    • None
    • Reviewed

    Description

      IIP#getReadOnlyINodes is invoked frequently for EZ and EC lookups. It allocates unnecessary objects to make the primitive array an immutable array list. IIP already has a method for indexed inode retrieval that can be tweaked to further improve performance.

      Attachments

        1. HDFS-12171.patch
          5 kB
          Daryn Sharp
        2. HDFS-12171.branch-2.patch
          4 kB
          Daryn Sharp

        Issue Links

          is broken by

          Sub-task - The sub-task of the issue HDFS-7498 Simplify the logic in INodesInPath

          • Major - Major loss of function.
          • Closed

          Activity

            People

              daryn Daryn Sharp
              daryn Daryn Sharp
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              Dates

                Created:
                Updated:
                Resolved: