Stop node.js program from command line

Question

I have a simple TCP server that listens on a port.

var net = require(\"net\");

var server = net.createServer(function(socket) {
    socket.end(\"Hello!\\n\"         


        

Answer 1

You can use fuser to get what you want to be done.

In order to obtain the process ids of the tasks running on a port you can do:

fuser <<target_port>>/tcp

Let's say the port is 8888, the command becomes:

fuser 8888/tcp

And to kill a process that is running on a port, simply add -k switch.

fuser <<target_port>>/tcp -k

Example (port is 8888):

fuser 8888/tcp -k

That's it! It will close the process listening on the port. I usually do this before running my server application.

Answer 2

I'm adding this answer because for many projects with production deployments, we have scripts that stop these processes so we don't have to.

A clean way to manage your Node Server processes is using the forever package (from NPM).

Example:

Install Forever

npm install forever -g

Run Node Server

forever start -al ./logs/forever.log -ao ./logs/out.log -ae ./logs/err.log server.js

Result:

info: Forever processing file: server.js

Shutdown Node Server

forever stop server.js

Result

info: Forever stopped process: uid command script forever pid id logfile uptime [0] sBSj "/usr/bin/nodejs/node" ~/path/to/your/project/server.js 23084 13176 ~/.forever/forever.log 0:0:0:0.247

This will cleanly shutdown your Server application.

Answer 3

If you want to stop your server with npm stop or something like this. You can write the code that kill your server process as:

require('child_process').exec(`kill -9 ${pid}`)

Check this link for the detail: https://gist.github.com/dominhhai/aa7f3314ad27e2c50fd5

Answer 4

you can work following command to be specific in localserver kill(here: 8000)

http://localhost:8000/ kill PID(processId):

$:lsof -i tcp:8000

It will give you following groups of TCPs:

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

node 21521 ubuntu 12u IPv6 345668 0t0 TCP *:8000 (LISTEN)

$:kill -9 21521

It will kill processId corresponding to TCP*:8000

Answer 5

My use case: on MacOS, run/rerun multiple node servers on different ports from a script

run: "cd $PATH1 && node server1.js & cd $PATH2 && node server2.js & ..."

stop1: "kill -9 $(lsof -nP -i4TCP:$PORT1 | grep LISTEN | awk '{print $2}')"

stop2, stop3...

rerun: "stop1 & stop2 & ... & stopN ; run

for more info about finding a process by a port: Who is listening on a given TCP port on Mac OS X?

Answer 6

Or alternatively you can do all of these in one line:

kill -9 $(ps aux | grep '\snode\s' | awk '{print $2}')

You can replace node inside '\snode\s' with any other process name.