Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-12825

Log slow name resolutions

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 2.8.0, 2.7.2, 3.0.0-alpha1
    • None
    • None

    Description

      Logging slow name resolutions would be useful in identifying DNS performance issues in a cluster. Most resolutions go through org.apache.hadoop.security.SecurityUtil.getByName ( see attached call graph ). Adding additional logging to this method would expose such issues.

      Attachments

        1. HADOOP-12825-branch-2.7.001.patch
          5 kB
          Jonathan Hung
        2. HADOOP-12825.002.patch
          5 kB
          Sidharta Seethana
        3. HADOOP-12825.001.patch
          5 kB
          Sidharta Seethana
        4. getByName-call-graph.txt
          50 kB
          Sidharta Seethana

        Activity

          People

            sidharta-s Sidharta Seethana
            sidharta-s Sidharta Seethana
            Votes:
            0 Vote for this issue
            Watchers:
            11 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: