A few of my colleagues and I had the silly (?) idea that you don't really need logs anymore. Instead of log messages you just attach span events [0]. You then just log the span title and a link to that span in Jaeger; something like [1]. I've only really tried that in my private project, but it felt pretty good. The UI of Jaeger could be a bit better to support that usage, though.

Edit: Actually, those colleagues are doing a talk about that topic. So, if you are in Germany and Hannover area, have a look at [2] and search for "Nie wieder Log-Files!".

[0]: https://opentelemetry.io/docs/instrumentation/ruby/manual/#a...

[1]:

    tracing.ts:38 Usecase: Handle Auth 
    tracing.ts:47 http://localhost:16686/trace/ec7ffb1e23ddbb8dd770a3f08028666b
    tracing.ts:38 Adapter: Find Personal Board 
    tracing.ts:47 http://localhost:16686/trace/e22d342316ab0d7d23230864008e27bc
    tracing.ts:38 Adapter: Find Starred Board List 
    tracing.ts:47 http://localhost:16686/trace/129f89cee26d54cfdc38abea368d9b4e
    tracing.ts:38 Adapter: Find Personal Board List 
    tracing.ts:47 http://localhost:16686/trace/97948127d77501ff0c65a5db21b21b5a

[2]: https://javaforumnord.de/2023/programm/

This was the idea behind Stripe's Veneur project - spans, logs, and metrics all in the same format, "automatically" rolling up cardinality as needed - which I thought was cool but also that it would be very hard to get non-SRE developers on board with when I saw a talk about it a few years ago.

https://github.com/stripe/veneur