[mattheath]

You're welcome! In our case linkerd is critical to this, as we've offloaded load balancing, circuit breaking, and retry policies etc to linkerd. If we hadn't then we would need to implement this functionality in multiple languages (though we mainly use go) and keep these in sync as we developed our platform, which from my experience is quite difficult. Using linkerd largely removes this from us, meaning we have a well tested method of inter-service RPCs, and we get free feature development ;) For async processing we're using Kafka, which powers the majority of our event sourced architecture.