Address already in use - bind(2) (Errno::EADDRINUSE)

Rails
1

I made a new rails app and when i started the server ,it gave
following error message.

=> Booting Mongrel
=> Rails 2.3.8 application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
/usr/lib/ruby/1.8/mongrel/tcphack.rb:12:in
initialize_without_backlog': Address already in use - bind(2) (Errno::EADDRINUSE) from /usr/lib/ruby/1.8/mongrel/tcphack.rb:12:in initialize’
from /usr/lib/ruby/1.8/mongrel.rb:93:in new' from /usr/lib/ruby/1.8/mongrel.rb:93:in initialize’
from /var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb:
10:in new' from /var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb: 10:in run’
from /var/lib/gems/1.8/gems/rails-2.3.8/lib/commands/server.rb:111
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in
gem_original_require' from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in require’
from script/server:3

Please help to resolve.

Thanks.

2

Hi Amrit,

You cannot run two application on the same port. One of your application
is
already running using port 3000. And you are trying to run another
application on the same port.

If you want to run another application, then use the following command
to do
that:

rub script/server -p 3001

where 3001 is the port number. You choose any other ports also.

Ankit

On Wed, May 18, 2011 at 2:56 PM, amrit pal pathak
<[email protected]

3

On 18 May 2011, at 11:26, amrit pal pathak wrote:

initialize_without_backlog': Address already in use - bind(2)gem_original_require’
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require’
from script/server:3

Please help to resolve.

You already have a server running on port 3000. Probably another
Webrick server you started earlier in a different terminal window. It
even says so: Address already in use. I don’t see how it could be any
more obvious.

Best regards

Peter De Berdt

4

On May 18, 5:37am, Peter De Berdt [email protected] wrote:

I made a new rails app and when i started the server ,it gave
from /usr/lib/ruby/1.8/mongrel/tcphack.rb:12:in `initialize’
from script/server:3

Please help to resolve.

You already have a server running on port 3000. Probably another
Webrick server you started earlier in a different terminal window. It
even says so: Address already in use. I don’t see how it could be any
more obvious.
Is there any way to check,how many ports are already in use,so
that i can stop the application which are already running on those.?

Thanks

5

on linux - “lsof | grep -i ruby”

tom

On May 20, 2011, at 16:03 , amrit pal pathak wrote:

/usr/lib/ruby/1.8/mongrel/tcphack.rb:12:in
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in
Is there any way to check,how many ports are already in use,so
that i can stop the application which are already running on those.?

Thanks

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6

I agree with Peter De Berdt …

Another webrick server is still running

Just close the shell and reopen it…

and then run

‘rails server’ again

7

you can check which process is running on that port by typing on command
line

lsof -i tcp:port number and than kill that process by typing
kill -9 process#

and that start the rails server -p 3000

8

On 25 November 2013 09:02, Fahad I. [email protected] wrote:

I agree with Peter De Berdt …

Another webrick server is still running

Did you all realise you are responding to a post from 2011?

Colin

9

on linux - “lsof | grep -i ruby”

I would like to recommend:
lsof -i :3000
(given that the zombie server is running on port 3000)

and then to check a reported :
ps ax | grep

before final:
kill -QUIT

10

On Nov 25, 2013, at 5:19 AM, Colin L. [email protected] wrote:

On Mon, Nov 25, 2013 at 2:15 AM, Agu N. [email protected] wrote:

I agree with Peter De Berdt …

Another webrick server is still running

Did you all realise you are responding to a post from 2011?

Colin

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