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  1. Log4j 2
  2. LOG4J2-2136

Add support for values in MDC in JSONLayout KeyValuePairs

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Information Provided
    • Affects Version/s: 2.10.0
    • Fix Version/s: None
    • Component/s: Layouts
    • Labels:

      Description

      The new KeyValuePair within JSONLayout as implemented for https://issues.apache.org/jira/browse/LOG4J2-1694 doesn't provide support for MDC stored values.

      In PatternLayout one can do something like this:

      <Pattern>%d{ISO8601}{UTC} %d{Z}{UTC} [CID:%X{conversation-id}] [%t] %-5p %c{1.} - %m%n</Pattern>
      

      But it seems that

      <KeyValuePair key="CID" value="%X{conversation-id}"/>
      

      or even

      <KeyValuePair key="CID" value="${conversation-id}"/>
      

      doesn't work.

      Variable replacement doesn't appear to read from the MDC.

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            • Assignee:
              Unassigned
              Reporter:
              dankirkd Daniel Kirkdorffer
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              • Created:
                Updated:
                Resolved: