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  1. Hadoop YARN
  2. YARN-3350

YARN RackResolver spams logs with messages at info level

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.6.0
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      When you run an application the container logs shows a lot of messages for the RackResolver:

      2015-03-10 00:58:30,483 INFO [RMCommunicator Allocator] org.apache.hadoop.yarn.util.RackResolver: Resolved node175.example.com to /rack15

      A real world example for a large job was generating 20+ messages in 2 milliseconds during a sustained period of time flooding the logs causing the node to run out of disk space.

        Attachments

        1. YARN-3350.2.patch
          1 kB
          Wilfred Spiegelenburg
        2. YARN-3350.patch
          1 kB
          Wilfred Spiegelenburg
        3. yarn-RackResolver-log.txt
          3 kB
          Wilfred Spiegelenburg

          Activity

            People

            • Assignee:
              wilfreds Wilfred Spiegelenburg
              Reporter:
              wilfreds Wilfred Spiegelenburg
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              Dates

              • Created:
                Updated:
                Resolved: