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  1. Hadoop HDFS
  2. HDFS-10616 Improve performance of path handling
  3. HDFS-10674

Optimize creating a full path from an inode

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.8.0, 2.7.4, 3.0.0-alpha1
    • hdfs
    • None
    • Reviewed

    Description

      INode#getFullPathName walks up the inode tree, creates a INode[], converts each component byte[] name to a String while building the path. This involves many allocations, copies, and char conversions.

      The path should be built with a single byte[] allocation.

      Attachments

        1. HDFS-10674.patch
          7 kB
          Daryn Sharp

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-12832 INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved
          requires

          Sub-task - The sub-task of the issue HDFS-10655 Fix path related byte array conversion bugs

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              daryn Daryn Sharp
              daryn Daryn Sharp
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              Dates

                Created:
                Updated:
                Resolved: