I'm trying to use ruby-debug with Pow. Rails 3 app.
I have done everything here: https://gist.github.com/1098830
I've restarted the server and machine several times. I can get rdebug to connect:
→ rdebug -c
Connected.
but it never stops at the breakpoints.
Any idea what could be going on? I got it to hit a few breakpoints a few hours ago, and not since.
controller
def index
debugger
...
end
Gemfile
gem 'ruby-debug19', :require => 'ruby-debug'
development.rb
EG::Application.configure do
...
require 'ruby-debug'
Debugger.start_remote
Debugger.settings[:autoeval] = true
puts "=> Debugger enabled"
end
This happens because Pow runs two worker processes as default, and rdebug only connects to one of them. If the other process serves the request, then no dice. The solution is to force Pow to run a single worker process, as follows:
- Edit ~/.powconfig to contain
export POW_WORKERS=1
- Restart Pow itself by killing the Pow process
You should now hit your breakpoint on every request.
Update Sept '12
I switched to the debugger
gem - a fork of ruby-debug19
with better support for ruby 1.9.2/3
This also allowed to simplify the configuration for remote-debugging in development.rb. I hit the breakpoint every single time and have no hanging processes.
require 'debugger'
Debugger.start_remote
Original Answer
Try enabling wait_connection (and restart pow)
require 'ruby-debug'
Debugger.wait_connection = true
Debugger.start_remote
Debugger.settings[:autoeval] = true
puts "=> Debugger enabled"
reload source is also nice: Debugger.settings[:reload_source_on_change] = true
来源:https://stackoverflow.com/questions/8996498/ruby-debug-with-pow-breakpoints-never-hit