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  1. IMPALA
  2. IMPALA-9541

Document for dynamic log level changes

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    Details

    • Type: Documentation
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Impala 4.0
    • Component/s: Docs
    • Labels:
      None
    • Epic Color:
      ghx-label-10

      Description

      There is a /log_level tab in the debug page of all Impala servers. We can use it to dynamically adjust log levels without restarting the server. Although it's a feature implemented years ago (IMPALA-4822), there are no documents about it. I think we should add a section in https://impala.apache.org/docs/build/html/topics/impala_logging.html about it. Also it's good to explain the pattern of each line in logs.

      For FE debugging, I usually set log level of org.apache.impala to TRACE.
      For log pattern, it's
      ${level}${month}${day} HH:MM:SS.${us} ${thread-id} ${source-file}:${line}] ${query-id}] ${message}

        Attachments

        1. log_level_full.png
          204 kB
          Quanlong Huang

          Activity

            People

            • Assignee:
              shajini shajini thayasingh
              Reporter:
              stigahuang Quanlong Huang
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              Dates

              • Created:
                Updated:
                Resolved: