How to stop a Daemon Server in Rails?

Question

I am running my rails application using the following

  $script/server -d webrick 

on my Ubuntu system , above command run the webrick s

Answer 1

Run this command:

locate tmp/pids/server.pid

output: Complete path of this file. Check your project directory name to find your concerned file if multiple files are shown in list.

Then run this command:

rm -rf [complete path of tmp/pids/server.pid file]

Answer 2

Here I leave a bash function which, if pasted in you .bashrc or .zshrc will alloy you do things like:

rails start # To start the server in development environment
rails start production # To start the server in production environment
rails stop # To stop the server
rails stop -9 # To stop the server sending -9 kill signal
rails restart # To restart the server in development environment
rails restart production # To restart the server in production environment
rails whatever # Will send the call to original rails command

Here it is the function:

function rails() {
  if [ "$1" = "start" ]; then
     if [ "$2" = "" ]; then
        RENV="development"
     else
        RENV="$2"
     fi
     rails server -d -e "$RENV"
     return 0
  elif [ "$1" = "stop" ]; then
     if [ -f tmp/pids/server.pid ]; then
        kill $2 $(cat tmp/pids/server.pid)
        return 0
     else
        echo "It seems there is no server running or you are not in a rails project root directory"
        return 1
     fi
  elif [ "$1" = "restart" ]; then
     rails stop && rails start $2
  else
     command rails $@
  fi;
}

More information in the blog post I wrote about it.

Answer 3

Like Ryan said:

the pid you want is in tmp/pids/

probably server.pid is the file you want.

You should be able to run kill -9 $(cat tmp/pids/server.pid) to bring down a daemonized server.

Answer 4

How about a rake task?

desc 'stop rails'
task :stop do
    pid_file = 'tmp/pids/server.pid'
    pid = File.read(pid_file).to_i
    Process.kill 9, pid
    File.delete pid_file
end

run with rake stop or sudo rake stop

Answer 5

In your terminal to find out the process id (PID):

$ lsof -wni tcp:3000

Then, use the number in the PID column to kill the process:

$ kill -9 <PID>

Answer 6

I came here because I were trying to (unsuccesfully) stop with a normal kill, and thought I'd being doing something wrong.

A kill -9 is the only sure way to stop a ruby on rails server? What!? Do you know the implications of this? Can be a disaster...