OpenTelemetry has a concept of "baggage" that allows you to attach arbitrary key/value pairs to metrics/traces. This should "just work" but we need to make sure the context is plumbed correctly, and ...

Our logs confirm that the custom name resolver and load-balancer are able to fetch service data and supply a picker to the gRPC code fairly quickly. Post that, however, the gRPC Netty client is simply ...