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https://issues.apache.org/jira/browse/LOG4J2-2139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16277493#comment-16277493
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Mikael Ståldal commented on LOG4J2-2139:
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You find the reference here:
http://logging.apache.org/log4j/2.x/manual/layouts.html#PatternLayout
You can do something like this:
{code:xml}
<PatternLayout
pattern='{"timeMillis":%d{UNIX_MILLIS},"thread":"%enc{%thread}{JSON}","level":"%enc{%level}{JSON}","loggerName":"%enc{%logger}{JSON}","message":"%enc{%m}{JSON}"}'/>
{code}
> JSONLayout ability to rename keys in log output - particularly locationInfo
> "source"
> ------------------------------------------------------------------------------------
>
> Key: LOG4J2-2139
> URL: https://issues.apache.org/jira/browse/LOG4J2-2139
> Project: Log4j 2
> Issue Type: Improvement
> Components: Layouts
> Reporter: Daniel Kirkdorffer
> Priority: Minor
> Labels: json
>
> We ran into a problem when setting {{locationInfo}} to {{true}} when
> ingesting logs into Kibana. The problem had to do with a conflict with
> another existing key named {{"source"}} of type String, and the fact that
> {{locationInfo}} produces an Object called "source".
> So it would be nice to have a way to supply a different Object name. Perhaps
> this could be broadened so that other key names could also be renamed?
> Maybe there is a way to do this already?
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