Investigate the possiblity and method to replace GLOG with spdlog

[PragmaTwice]

Search before asking

• I had searched in the issues and found no similar issues.

Motivation

spdlog (https://github.com/gabime/spdlog) is a modern logging library based on fmt library (or std::format).

It's better to use spdlog instead of glog because we extensively utilize the fmt library.

Note: we need to specify SPDLOG_FMT_EXTERNAL since we need to keep there's only one fmt library in our deps.

Solution

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!

[YaroslavStepanchuk]

@PragmaTwice Good idea. However, we use this function from the glog library https://github.com/apache/kvrocks/blob/unstable/src/cli/signal_util.h#L54.

I was looking for a way to get rid of it because in the glog-0.7.0 it's no more public.

N.B. I tried to use the libunwind but failed to add it to the project. However, it's a different story :)

[133tosakarin]

hello, I'm a beginer, Can I choose this issue ?

[git-hulk]

@133tosakarin Perhaps you can try #2266 first.

[letian-jiang]

@git-hulk @PragmaTwice Could you assign this one to me?

BTW, is there any expected performance improvement after replacing GLOG with spdlog?

[PragmaTwice]

BTW, is there any expected performance improvement after replacing GLOG with spdlog?

I think it's good if there's no noticeable performance degradation.