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  1. Hadoop Common
  2. HADOOP-5258

Provide dfsadmin functionality to report on namenode's view of network topology

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.21.0
    • None
    • None
    • Incompatible change, Reviewed
    • New dfsAdmin command -printTopology shows topology as understood by the namenode.

    Description

      As discussed in HADOOP-4954, it would be useful to be able to query the namenode to its current view on the network topology of racks and datanodes. This would allow ops to compare what the namenode sees with what they expect it to see.

      Attachments

        1. HADOOP-5258.patch
          20 kB
          Jakob Homan
        2. HADOOP-5258.patch
          20 kB
          Jakob Homan
        3. HADOOP-5258.patch
          17 kB
          Jakob Homan
        4. HADOOP-5258.patch
          15 kB
          Jakob Homan

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. HADOOP-5477 TestCLI fails

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-4954 Specify node-rack mapping, dfsadmin -report to warn on mismatch

          • Major - Major loss of function.
          • Open

          Activity

            People

              jghoman Jakob Homan
              jghoman Jakob Homan
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              Dates

                Created:
                Updated:
                Resolved: