Method: Mongrel::Configurator#debug

Defined in:
lib/mongrel/configurator.rb

#debug(location, what = [:access, :files, :objects, :threads, :rails]) ⇒ Object

Calling this before you register your URIs to the given location will setup a set of handlers that log open files, objects, and the parameters for each request. This helps you track common problems found in Rails applications that are either slow or become unresponsive after a little while.

You can pass an extra parameter what to indicate what you want to debug. For example, if you just want to dump rails stuff then do:

debug "/", what = [:rails]

And it will only produce the log/mongrel_debug/rails.log file. Available options are: :access, :files, :objects, :threads, :rails

NOTE: Use [:files] to get accesses dumped to stderr like with WEBrick.



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# File 'lib/mongrel/configurator.rb', line 322

def debug(location, what = [:access, :files, :objects, :threads, :rails])
  require 'mongrel/debug'
  handlers = {
    :access => "/handlers/requestlog::access", 
    :files => "/handlers/requestlog::files", 
    :objects => "/handlers/requestlog::objects", 
    :threads => "/handlers/requestlog::threads",
    :rails => "/handlers/requestlog::params"
  }

  # turn on the debugging infrastructure, and ObjectTracker is a pig
  MongrelDbg.configure

  # now we roll through each requested debug type, turn it on and load that plugin
  what.each do |type| 
    MongrelDbg.begin_trace type 
    uri location, :handler => plugin(handlers[type])
  end
end