Realtime response time reporting from Rails logs using regex.

hbeaver — Fri, 05 Jun 2009 15:12:20 +0000

Simple but effective regex to monitor when there are issues. In my example below, this will show all response times > 1 second:

 tail -f production.log | egrep "Completed in [0-9]{3,10}"

Enabling logging (logs) on MERB in development

hbeaver — Sat, 06 Dec 2008 15:29:01 +0000

MERB does not have development logging turned on by default something I like very much in Rails. To turn it on, uncomment this line:

c[:log_file]  = Merb.root / "log" / "development.log"

In the config/environments/development.rb file.