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https://issues.apache.org/jira/browse/LOG4J2-3200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rémi C. resolved LOG4J2-3200.
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Resolution: Works for Me
> Log4j2 compatibility with Open Telemetry
> ----------------------------------------
>
> Key: LOG4J2-3200
> URL: https://issues.apache.org/jira/browse/LOG4J2-3200
> Project: Log4j 2
> Issue Type: Question
> Components: Filters
> Reporter: Rémi C.
> Priority: Blocker
>
> Hello,
> I am trying to fetch the trace id generated by open telemetry with only
> configuration in log4j2.xml file and web.xml file.
> I created a stack overflow ticket, see :
> [https://stackoverflow.com/questions/70194344/how-to-access-request-header-value-with-log4j2]
>
> Is it possible with the log4j2 lookup to be compatible with open telemetry?
> I tried to use ${web:header.traceId} and it just does not work. I have
> followed the config. So, am I missing something to make it work?
> I saw that even without the web.xml config I added, the ${web:rootDir}
> still works.
> There is almost no information on the internet on how to make it work with
> Open Telemetry so I am asking to the expert here. Open Telemetry is basically
> a field/value that is set in the HTTP request header.
>
> Thank you
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