Extract opentracing TraceId for use in logging?

[André Fachat]

Hi there,

just a quick question, as I could not find the solution after some search.

I want to extract the opentracing TraceId, and use it (print it) in my logs so I can use it as correlation ID, to correlate logs from the same request (trace) in ELK.

I would like to do it in a WebFilter, that would extract the TraceID and puts it e.g. into log4j diagnostic context.

What is the easiest/preferred/allowed way of doing this?

[Note: as far as I understand, the TraceId is a "global" correlator created at the "entry" of a request into the system and the same across all spans in that request]

Many thanks in advance

André

(log correlation e.g. like here: https://www.ibm.com/developerworks/library/d-smarter-monitoring-trs/index.html )

#opentracing #microprofile

[Gary Brown]

Hi André

The ability to obtain the trace id from an active span (context) has only just been added to the Java OpenTracing API, as of version 0.32.0 released 3 days ago.

Therefore you would need to wait for tracers to become available that support that version of the API.

Regards

Gary

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[André Fachat]

Ok, thanks, good to know!

[André Fachat]

As a followup, for now, if that is not yet available, I could create an own ID, and put it into the "baggage", would that be transferred to child-spans?

On Thursday, 28 March 2019 10:49:00 UTC+1, André Fachat wrote:

[Gary Brown]

Correct - that should work if the tracer implementation supports the baggage propagation.

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