xsds/sherlog equivalent?

[tangurano]

I find myself missing having a tool that can trace through the whole RPC call-graph for a given session. Really nice for debugging and understanding the broader system as a newbie by inspecting requests/responses.

It sounds like Datadog APM may be able to do similar things? Any limitations/differences to be aware of?

At a glance it seems like the use cases are a bit different. Datadog APM shows the latencies, but I can't find request/response payloads. Looks like it runs on every request, so it can't log everything. I didn't use Dapper much but maybe that's closer to what Datadog APM does - low-overhead performance monitoring.

xsds/sherlog was opt-in just for a given session and seemed to be geared at debugging specifically. It was great when you had just found a repro and could record a full trace to reference for anything unusual downstream. With Datadog APM it looks like I'd have to use the right filters to get to the right trace.