No traces for Akka HTTP 10.2.x requests

[steinybot]

I am just getting started with Kamon and I don't seem to be getting any traces for Akka HTTP.

I am also using kamon-bundle. I'm am also adding the agent using -javaagent to avoid an initialization order problems. Presumably I still have to call Kamon.init() to load the modules.

The status page says that Akka HTTP Instrumentation is enabled.

When I put a breakpoint in my Akka Server route and check Kamon.currentContext it is empty.

What are the next steps to diagnose the problem?

[steinybot]

I got a bit tripped up by #990 and wasn't able to debug the problem until I switched to using the individual libraries.

I think the problem is that we are using Akka HTTP like this:

        Http(system)
          .newServerAt(host, port)
          .connectionSource()
          .to(Sink.foreach(_.handleWith(routes)))
          .run()

I can't see any instrumentations for doing it this way.

All the bind* methods have been deprecated since Akka HTTP 10.2.0.

[steinybot]

Ok I think I'm getting somewhere. I need to wrap the routes manually like:

ServerFlowWrapper(routes, host, port)

I'm getting a span now but it's still not showing up in Jaeger so not sure what the problem is now.

[steinybot]

This morning my traces from yesterday appeared. Perhaps there is some buffering going on somewhere. At least it is working now.