I have deployed my express and nextjs based app on EC2, I am trying to stop server so I kill process few second later I notice it automatically starts Nginx and node with diffrent porcess ID, I haven't added forever or nodemon etc.. it's just simple express server right now. How can I stop that.
I have tried to kill process but still my server.js is running
here my full package.json
This was automatically spawn by it's parent process, I search out parent process after killing that this stop as well.
Related
I have a NodeJS server written in Typescript, and I'm using supervisor to run this app in the background in production. However, when I type supervisorctl stop myapp, the process stops, but the node process is still running in the background and the site is live. How do I stop the given nodejs process with supervisor?
If supervisorctl stop doesn't stop your node process, you can actually set the stopsignal to one of following values: QUIT, KILL
In the config file '/etc/supervisor/conf.d/*.conf' add the following:
stopsignal=KILL
For more details check this.
I wonder how pm2 allows my express app code to run unmodified in parallel processes. When I try to manually start another instance of my express app listening on e.g. port 3000, I always get error that port is already in use.
Does pm2 MODIFY the js code which is run to insert some tweaks in the middle, or does it emulate some sort of VM and then exposes just the one port of pm2 process to the world? What goes on behind the scene?
PM2 won't allow you to start the same script on the port again. If you use the pm2 start app.js -f option to force the script to start again, pm2 will repeatedly try starting up the script but will fail every time since that port is already in use. pm2 ls might show that there are two processes running, but in reality the second one is failing continuously and you can confirm the same by running the pm2 logs command.
If you're talking about the cluster mode of pm2, in that case pm2 just load balances the requests between multiple child processes using NodeJS's cluster module internally.
I want to rebuild my node+vue.js app to update the changes I made. The app was started with pm2, but the problem is that I can't see anything when I do pm2 ls. The list is empty. On the other hand, the node app is running. I tried to kill it with pid, but it is restarting immediately.
Any suggestions?
I have my NodeJs server hosted on DigitalOcean.The server worked well for few days after which it stopped due to pm2 starting again and again.
This is a screenshot of my logs after starting it with pm2 start app.js
However, if I simply start my server using node app.js it works fine.
My code for listening on server is
I have not found any suitable answer for this problem.If more description to this problem is required then let me know.
This mainly happens when your server does not kill previously running processes.These processes keep on running and they consume whole memory causing memory leak.
Process killing can be done using following code
process.on('SIGTERM', function handleSigterm() {
server.close();});
this will kill all the previous running process
Is there a way to trigger the node server to reload on a command
Something like;
if(checkFirstInCmd("RESTART",cmd){
RESTART.NODE.SERVER
}
There is no built-in way to restart a node server. For example: if a node server crashes it will stop the node process.
One solution that came to my mind was something like a shell script that you could spawn with a child process. The script could kill your server and maybe wait some seconds till it's killed and than restart it again.