node server is running after forever stopall

I have a node application running as a daemon on the server with forever. After one of the updates, I tried to stop it (to restart later). But to my surprise forever stopall has done nothing No forever processes running was returned. Forever list has returned the same. Both commands I tried with sudo as well.

The problem is that I can clearly see that node is still running (my app is working just fine). Any idea what was wrong?

P.S. I needed to roll update as fast as possible so I just rebooted the server. But I am still curious about this situation.

P.S.S after typing ps aux | grep app.js

ubuntu    1320  0.0  2.2 663040 23232 ?        Ssl  Sep12   0:00 /usr/bin/nodejs /usr/lib/node_modules/forever/bin/monitor node_app/app.js
ubuntu    1322  0.0  6.9 992564 70792 ?        Sl   Sep12   0:31 /usr/bin/nodejs /var/www/node_app/app.js
root      9739  0.0  0.0  10468   936 pts/0    S+   11:09   0:00 grep --color=auto app.js

Why is this happening? I am running node app.js on amazon aws.

EDIT:

I´ve managed how to mark your apps in forever using a UID, and then not using forever stopall. This is a cleaner way, and will make forever to kill all the processes depending on the script.

You just need to add the --uid "scriptID" parameter, and then all the processes depending on it, will be controlled together.

To start a new daemon: forever start --uid "demo" --sourceDir /home/procdir -l /home/log/logfile -o /home/log/outputfile -a -d -v taskName

To Stop a daemon: forever stop -uid "demo" 

-bash-4.1$ forever list
info:    Forever processes running
data:        uid       command       script           forever pid   id logfile                                     uptime          
data:    [1] Test /usr/bin/node grunt serve:test 18217   18224    /home/admin/logs/test/forever.log 59:20:21:10.512 
data:    [2] Dev  /usr/bin/node grunt serve:dev 18347   18354    /home/admin/logs/dev/forever.log  59:20:19:56.87  
data:    [3] Prod /usr/bin/node grunt serve:prod 20411   20418    /home/admin/logs/prod/forever.log           59:18:58:28.697

Anyway, you can also run (hands way) this command to to kill the processes: First, kill all forever tasks (this will prevent forever to run the task again when killing it): 

 forever list | grep your_app | `awk '/\[0\]/{print "forever stop "$8}'`

After that, when forever is killed, then now it´s time to kill your node_app

ps -efa | grep  node | grep your_app | `awk '{ print "kill "$2}'`

I strongly recommend you to not using kill. forever --uid will surely be the best solution.

Hope this solution helps you!