We use remote sampling. I don't have a ton of experience with Jaeger, but I've used it a lot, and implemented OpenTracing in a dozen or so apps. The benefit of

We use remote sampling. I don't have a ton of experience with Jaeger, but I've used it a lot, and implemented OpenTracing in a dozen or so apps. The benefit of remote sampling, as I understand it, is that the sample rata doesn't need to be configured in each app. So in principle, you could have a little slider in the UI to adjust the sample rate for each individual app, perhaps increasing it during a particular incident to capture more traffic data. Without remote sampling, you'd have to hard-code the rate into the app's config or code, which then requires a redeploy to change the setting. With a lot of microservices to maintain, it seems a lot simpler to have a central location for such settings. Uptrace looks fantastic, by the way. It's about time someone gives Zipkin and Jaeger some competition. And Clickhouse makes a lot more sense as a backend than Cassandra.