This article is says allot, but shows little. Ok, write lots of logs everywhere, but how and where should those go? Wont all those messages get in the way? Wil

This article is says allot, but shows little. Ok, write lots of logs everywhere, but how and where should those go? Wont all those messages get in the way? Will they obfuscate my code? Most of the codebases I've worked with didn't have judicious logging, so where should I look for examples? Spring's source code doesn't look too bad. Is that a good standard? Maybe other languages?