Comment by demurgos
OpenTelemetry is nice overall as there are library for multiple platforms. I introduced it this year for a web game platform with servers in Node, Java, PHP and Rust and it all worked roughly similarly which made it good for consistency.
I like how OpenTelemetry decouples the signal sink from the context, compared to other structured logging libs where you wrap your sink in layers. The main thing that I dislike is the auto-instrumentation of third-party libraries: it works great most of the time, but when it doesn't it's hard to debug. Maintainers of the different OpenTelemetry repos are fairly active and respond quickly.
It's still relatively recent, but I would recommend OpenTelemetry if you're looking for an observability framework.
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