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"); });  server.listen(7777); 

I start it with node server.js and then close it with Ctrl + Z on Mac. When I try to run it again with node server.js I get this error message:

node.js:201         throw e; // process.nextTick error, or 'error' event on first tick           ^ Error: listen EADDRINUSE at errnoException (net.js:670:11) at Array.0 (net.js:771:26) at EventEmitter._tickCallback (node.js:192:41) 

Am I closing the program the wrong way? How can I prevent this from happening?

Answer 1

To end the program, you should be using Ctrl + C. If you do that, it sends SIGINT, which allows the program to end gracefully, unbinding from any ports it is listening on.

See also: https://superuser.com/a/262948/48624

Answer 2

Ctrl+Z suspends it, which means it can still be running.

Ctrl+C will actually kill it.

you can also kill it manually like this:

ps aux | grep node 

Find the process ID (second from the left):

kill -9 PROCESS_ID 

This may also work

killall node