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Eventmachine start_tcp_server no acceptor-port is in use or requires root privileges (RuntimeError)

I was unable to start my local server for 3 days. Restarting my computer doesn't help. A couple of times, after repetitively about 40-50 times, it worked randomly - I can't figure out why. I tried another port once and it worked, but the port hasn't worked since then. Every time I try to start my rails server I get this.

/Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/eventmachine-1.0.5/lib/eventmachine.rb:526:in `start_tcp_server': no acceptor (port is in use or requires root privileges) (RuntimeError)
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/eventmachine-1.0.5/lib/eventmachine.rb:526:in `start_server'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/thin-1.5.1/lib/thin/backends/tcp_server.rb:16:in `connect'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/thin-1.5.1/lib/thin/backends/base.rb:55:in `block in start'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/eventmachine-1.0.5/lib/eventmachine.rb:187:in `call'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/eventmachine-1.0.5/lib/eventmachine.rb:187:in `run_machine'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/eventmachine-1.0.5/lib/eventmachine.rb:187:in `run'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/thin-1.5.1/lib/thin/backends/base.rb:63:in `start'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/thin-1.5.1/lib/thin/server.rb:159:in `start'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/rack-1.6.1/lib/rack/handler/thin.rb:19:in `run'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/rack-1.6.1/lib/rack/server.rb:286:in `start'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/commands/server.rb:80:in `start'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:80:in `block in server'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `tap'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:75:in `server'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
    from /Users/colmtuite/.rvm/gems/ruby-2.2.0/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

When I run ps aux | grep rails

I get this output:

colmtuite        6422   0.0  0.0  2441988    668 s002  S+    2:44am   0:00.00 grep rails

When I run ps aux | grep ruby

I get this output:

colmtuite       13305   0.0  0.0  2423356    200 s000  R+    8:15pm   0:00.00 grep ruby

Are my ports closed for some reason?

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2 answers


I also had the same problem

This works for me

$ ps ax | grep rails

then kill the process with the process id

$ kill -9 [process Id]


..

Example

$ kill -9 20496

..

start the server again

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/usr/local/lib/ruby/gems/2.2.0/gems/eventmachine-1.2.7/lib/eventmachine.rb:531:in start_tcp_server': no acceptor (port is in use or requires root privileges) (RuntimeError) from/usr/local/lib/ruby/gems/2.2.0/gems/eventmachine-1.2.7/lib/eventmachine.rb:531:in

start_server 'from /usr/local/lib/ruby/gems/2.2.0/ gems / thin-1.6.4 / lib / thin / backends / tcp_server.rb: 16: in connect' from/usr/local/lib/ruby/gems/2.2.0/gems/thin-1.6.4/lib/thin/backends/base.rb:63:in

block at startup 'from /usr/local/lib/ruby/gems/2.2.0/gems/eventmachine-1.2.7/lib /eventmachine.rb:195:in call' from/usr/local/lib/ruby/gems/2.2.0/gems/eventmachine-1.2.7/lib/eventmachine.rb:195:in

run_machine 'from /usr/local/lib/ruby/gems/2.2.0/gems/eventmachine-1.2.7/lib/eventmachine.rb:195:in run' from/usr/local/lib/ruby/gems/2.2.0/gems/thin-1.6.4/lib/thin/backends/base.rb:73:in

beginning' from / usr / local /lib/ruby/gems/2.2.0/gems/thin-1.6.4/lib/thin/server.rb:162:in start' from/usr/local/lib/ruby/gems/2.2.0/gems/rack-1.5.2/lib/rack/handler/thin.rb:16:in

start' from/usr/local/lib/ruby/gems/2.2.0/gems/rack-1.5.2/lib/rack/handler/thin.rb:16:in

'from / bin / zdnsloader: 23: block in run_service' from/bin/zdnsloader:5:in

forked' from / bin / zdnsloader: 5 : in run_service' from/bin/zdnsloader:37:in

'

进程 ： 查找 监听 端口 s lsof -i: 80 COMMAND PID USER FID TYPE DEVICE SIZE FD SIZE / DISABLE NODE NAME zdnsloade 17899 root 29u IPv6 102948344 0t64 TCP local host: 48394-> localOSE 176 zwtc64 localhost (localhost): 48394-> localhost6 0 zwtcA TCP : 51016-> localhost: kwtc (CLOSE_WAIT) zdnsloade 28185 root 12u IPv6 102962591 0t64 TCP *: kwtc (LISTEN)



kill -9 28185 kill -9 17899

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