我试图在Mac OS X Lion上使用Ruby v1.8.7和Daemons v1.1.8，试图编写一个使用者进程并使它作为dameon运行:
＃config [:name] =>'idx_my_delete_consumer'
＃config [:daemon] => {:multiple => false，
＃:backtrace => true，
＃:dir_mode =>:normal，
＃:log_dir =>'/Users/pprakash/consumer.log'，
＃:显示器=>是的，
＃:dir =>'/Users/pprakash/pids'}
Daemons.run_proc(config [:name]，config [:daemon])做
消费者= MyConsumer.new(配置)
消费者订阅
结尾
但是，它没有启动，而是引发了长时间的追溯，如下所示:
E，[2012-05-28T19:34:16.199770＃29357]错误-:错误的文件描述符(Errno::EBADF)
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/daemonize.rb:134:在`for_fd'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/daemonize.rb:134:在`close_io'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/daemonize.rb:134:在'initialize'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/daemonize.rb:134:在'new'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/daemonize.rb:134:在`close_io'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/daemonize.rb:75:在`call_as_daemon'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/application.rb:258:在'start_proc'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/application.rb:295:在'开始'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:51:in`watch'
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:51:在'fork'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:51:在“监视”中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:45:在`each'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:45:在'watch'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:44:在`loop'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:44:在'watch'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:84:在'start_with_pidfile'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:64:在'fork'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:64:在'start_with_pidfile'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/monitor.rb:111:在'开始'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/application_group.rb:149:在`create_monitor'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/application.rb:284:在'开始'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/controller.rb:70:在`run'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons.rb:197:在`run_proc'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/cmdline.rb:109:在`call'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons/cmdline.rb:109:在`catch_exceptions'中
/opt/local/lib/ruby/gems/1.8/gems/daemons-1.1.8/lib/daemons.rb:196:在`run_proc'中
users/delete_consumer.rb:40
我不确定是什么引起了这个问题？目录名，日志文件名均有效。我能够使用这些配置创建MyConsumer的实例，并能够从独立程序/控制台正确执行其#subscribe。
最佳答案
根据我对Ruby Daemon的经验，我发现此类错误表明基础块(已被守护)包含错误。修复这些错误也可以修复此错误。
关于ruby - Ruby守护程序中的错误文件描述符，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/10785992/