[Mongrel] Timestamping in log file?

Paolo Montrasio lists at ruby-forum.com
Tue Feb 12 17:19:03 EST 2008


I added timestamps to my mongrel logs by adding these lines to 
config/environment.rb:

class Logger
  def format_message(severity, timestamp, progname, msg)
    time = timestamp.getutc.strftime("%Y%m%d%H%M%S")
    "\n#{time}:#{severity.to_s.upcase}:#{$$}:#{msg}"
  end
end

It logs messages like this:

Processing MyController#my_method (for 127.0.0.1 at 2007-12-29 14:37:54)
 [POST]
20071229133754:INFO:23386:  Session ID: d7022e387306cc4e5fea107080014bf1
20071229133754:INFO:23386:  Parameters: {"action"=>"my_method", 
"controller"=>"my", "id"=>"1"}
20071229133754:DEBUG:23386:ID = 1

The process id turned out to be extremely useful to debug some weird 
things my application started doing when moved from the single mongrel 
development environment to a multi mongrel one in production.

Furthermore, sometimes the logs from two or more requests get mixed 
together (I guess that it can't be helped) and the process id helps to 
connect a log line to its request.


Paolo
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