Can't find out where does a node.js app running and can't kill it

What I did: I have just set up node environment, installed express, create and installed an express project

express hello
cd hello && npm install

then started the app with "node app".

Environment:

yole@Yole:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 7.2 (wheezy)
Release:    7.2
Codename:   wheezy

yole@Yole:~$ node --version
v0.10.22

yole@Yole:~$ express --version
3.4.4

Problem When I want to stop this app, I used CTRL+C, but the thing I found is it did not stopped. Then I restarted the server! I found I can still access the page in browser. Orz.

I have tried the following thing but still can't find out the running process.

yole@Yole:~$ killall node
node: no process found

yole@Yole:~$ ps -ef|grep node
yole      3161  2888  0 16:57 pts/1    00:00:00 grep node

yole@Yole:~$ netstat -apn|grep 3000

Question How to find out the running node process or how to kill it.

===== update It is very strange that all browses in my machine can visit the site while it's not available on other machine! I only visit the page with Chrome before I stop the application. It seems to be a cache problem, but how cache shared among browsers..

List node process:

$ ps -e|grep node

Kill the process using

$kill -9 XXXX

Here XXXX is the process number

If you want know, the how may nodejs processes running then you can use this command

ps -aef | grep node

So it will give list of nodejs process with it's project name. It will be helpful when you are running multipe nodejs application & you want kill specific process for the specific project.

Above command will give output like

XXX  12886  1741  1 12:36 ?        00:00:05 /home/username/.nvm/versions/node/v9.2.0/bin/node --inspect-brk=43443 /node application running path.

So to kill you can use following command

kill -9 12886

So it will kill the spcefic node process

You can kill all node processes using pkill node

or you can do a ps T to see all processes on this terminal
then you can kill a specific process ID doing a kill [processID] example: kill 24491

Additionally, you can do a ps -help to see all the available options