[I] camel-quarkus-opentelemetry2 disconnected vertx-http spans [camel-quarkus]

["jamesnetherton (via GitHub)" <gi...@apache.org>]

jamesnetherton opened a new issue, #8277:
URL: https://github.com/apache/camel-quarkus/issues/8277

   ### Bug description
   
   I discovered this by switching the [Observability example project](https://github.com/apache/camel-quarkus-examples/tree/main/observability) from `camel-quarkus-http` to `camel-quarkus-vertx-http`.
   
   Here's a typical view of how tracing looks. All 10 spans should be connected together, but they are split:
   
   <img width="500" height="500" alt="vertx-http-traces" src="https://github.com/user-attachments/assets/4c023679-8e36-4377-92b8-3ba72d54551d" />
   
   I think it's caused when the Vert.x HTTP Client creates its own internal spans. When tracing is suppressed on the client, then all of the Camel route spans are connected properly.
   
   I tested with a standalone `camel-main` application and this issue does not occur when the Otel agent is used.
   
   The workaround will be to disable internal tracing for the HTTP client. You loose a span for the request but we still have the `vertx-http` endpoint span, which contains mostly identical info.


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Re: [I] camel-quarkus-opentelemetry2 disconnected vertx-http spans [camel-quarkus]

["jamesnetherton (via GitHub)" <gi...@apache.org>]

jamesnetherton commented on issue #8277:
URL: https://github.com/apache/camel-quarkus/issues/8277#issuecomment-3876201706

   The other thing to mention is that even with a plain Quarkus app with using `quarkus-reactive-routes` and the Vert.x HTTP Client, the spans all end up forming the expected hierarchy.
   
   So there is perhaps some combination of platform-http / vertx-http in Camel & Camel Quarkus causing issues that needs investigating.


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