SourceForge.net: Scribe
http://sourceforge.net/projects/scribeserver/

Scribe is a server for aggregating log data streamed in real time from a large number of servers. It is designed to be scalable, extensible without client-side modification, and robust to failure of the network or any specific machine.

Facebookのログ収集ソフトウェア

Looks like a handy addition to the toolkit

"Rails log file viewer."

log analyzer app for rails logs

Spike is a log file viewing & (if we’re being generous) analysis tool for Rails developers.

Desktop app for the Mac that shows Rails log files.

%D リクエストを処理するのにかかった時間、マイクロ秒単位

Apacheのマニュアル読めってこと

A career journal, diary, or log is a way of keeping track of what you do or have done in the past. Those little things that you might forget down the road, but when added together can, at the very least, add up to a significant pat on the back. If used right, it can help you with focusing your career and life experiences. It can also be helpful when updating your resume. Here's how to get the most out of your career log.

Très joli git log --graph à consommer sans modération

You can run the following to add it to your ~/.gitconfig: git config --global alias.lg "log --graph --pretty=format:'%Cred%h%Creset

I love this custom log view for git

pipe

Script lets you scroll logfiles automatically colorized making them a TON easier to read at a glance!

Logging level definition

A recent Stack Overflow post described one programmer's logging style. Here's what he logs:

Nice productivity hint

Graph Visualization for Apache log files