Couldn't get a file descriptor referring to the console about cruisecontrol.rb HOT 4 CLOSED

You may have run into your system's limit on the number of open file descriptors, although I couldn't tell you why without knowing a bit more about that box. You can easily increase the limit--Googling around a little bit led me to this guide--or try to figure to figure out why so many are gettng opened--does this box have other responsibilities besides those of a build server?

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Hmmm, I don't think so... the server is an ec2 instance which is only used for cruisecontrol.rb... I don't know the exact reason why it fails... but now I know how to get it to run... might be related to running cc.rb with apache/passenger...
After I changed the cc configuration(site_config.rb) by adding "BuilderStarter.run_builders_at_startup = false" and then starting the builder process manually at the console with "sudo su -c "./cruise builder projectname" www-data" all the builds which are started e.g. with "Build Now" in the GUI, finish as they should without the file descriptor error message...
So there seems to be a difference in how the builder is started from within apache/passenger compared to starting it manually from the command line...
Could there be a problem with "Platform.create_child_process(project_name, command)" if cc is running with apache/passenger?

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OK. Found the culprit. It was the cover_me gem trying to open the coverage report in a browser... after configuring the cover_me task like

task :report do
   require 'cover_me'
   CoverMe.config do |c|
     c.at_exit = proc {}    # do not open the coverage report automatically
     c.html_formatter.output_path = File.join(ENV['CC_BUILD_ARTIFACTS'] || Rails.root , 'coverage')
   end
   CoverMe.complete!
end

everything worked. Sorry for the inconvenience...

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No trouble at all. Glad you were able to figure it out!

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