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Luis Alberto Aguilera Clarke
Asked: 2020-03-03 07:56:32 +0800 CST 2020-03-03 07:56:32 +0800 CST

Port gets busy when pressing CTRL + C from linux terminal with Nodejs applications

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I have the following problem, once I have to program in nodejs when executing the nodejs application from the console (node ​​app.js) there is a busy port (example port:3000).. when closing the app ( Ctrl+ C) .. The port is still busy and when I run nodejs again it throws me an error Error: listen EADDRINUSEbecause it says that there is already an application that uses that port.

When closing it does not close correctly and the port remains open, what I do is look for the app id and kill the port with the command killbut that takes too many hours when performing a deploy

Is there another way to (safely) close an app in nodejs?

linux

1 Answers

  1. Best Answer

    Maybe you press ctrl + z. Check well and use this to clean up old node.

    ps aux | awk '/node/{print$2}' | xargs kill -9

    In your code you can use something like:

    process.on('SIGHUP', () => {
  console.log('SIGHUP');
});

process.kill(process.pid,'SIGHUP')

    Check out the node documentation to see all the signals and events it can handle process.

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