Not able to setup juggernaut push notification server on ubuntu

Question

I am developing a ruby on rails application to implement chat. I am not able to setup juggernaut server in production mode.

I followed this guide to setup redis. and its working perfectly fine.

Then I followed this for setting up juggernaut. But when I am trying to start juggernaut its not working.

Here is the out for grep commands to check that redis is working but juggernaut is not.

When I am trying to stop/start redis server its gives me output ie:

 Starting/Stopping redis-server: redis-server.

But nothing when i m doing the same for juggernaut. Check screenshot.

Some other things to check what actually going on:

1. Executable file permissions to /etc/init.d/juggernaut file -- YES

       -rwxr-xr-x 1 fizzy fizzy 1310 Sep 19 11:06 juggernaut
   

2. PIDFILE=/var/run/juggernaut.pid' is defined. Does that exist? --- NO

3. In the 'start' part it runs 'chown juggernaut:juggernaut'. Does the user juggernaut exist and is it member of the group juggernaut? -- YES/YES

     cat /etc/group
         redis:x:1002:
         juggernaut:x:113:
   
     groups juggernaut
         juggernaut : juggernaut
   

4. Running sudo juggernaut start the server, but i want to it to keep on running in background process/service.

I am stuck now. Can anybody help me.

EDIT

     fizzy@li136-198:~$ sudo ls -l /usr/bin/juggernaut 
              ls: cannot access /usr/bin/juggernaut: No such file or directory
     fizzy@li136-198:~$ sudo ls -l /usr/local/bin/juggernaut 
            lrwxrwxrwx 1 root root 40 Sep 20 02:48 /usr/local/bin/juggernaut -> ../lib/node_modules/juggernaut/server.js

I tried changing

        DAEMON=/usr/bin/juggernaut

to

        DAEMON=/usr/local/bin/juggernaut

after that i tried restarting the juggernaut using

         sudo /etc/init.d/juggernaut start

Server started but not as background process/service.

PS: Somebody please create proper tags for this question.