pm2 hangs and unable to restart process due to high numbers of request

Question

For the purpose of load testing i created an API which request around 2000 bookings at a time and after hitting this API, server(AWS EC2 instance) reaches to the more than 20% of CPU consumption and consume almost all the memory(900/991M) of system. After that i was trying to restart node app with pm2 restart but it's not working and even "pm2 ls" and "pm2 log" commands are also not working. What can i do now to run my application again ? List of command which i already run on server.

pm2 restart pid && pm2 log pid
pm2 ls
pm2 log pid

Synthiasyntonic

Can you share the error message? – Plasty

No error message was there it just got hanged over there. I disconnected server (via terminal) and after that when i again tried to connection via SSH it was refusing connection. – Synthiasyntonic

Have you managed to solve this issue? I'm still experiencing it with version 5.2.2. It goes so far, that even ps -aux or ls command is not executing anymore and gives me the error: -bash: fork: retry: Resource temporarily unavailable – Alsatia

Answer 1

Try to kill the current process of pm2:

ps -ef | grep pm2
kill -9 <PID_OF_PM2>

And then restart pm2 again.

Try to Upgrade to the latest pm2 version if the above not working after killing the pm2 process, using this command:

npm install pm2@latest -g

Plasty

Answer 2

PM2 hangs when your project contains millions of files and it is watching all those files. Make sure to exclude the non-essential files from watch using ignore_watch.

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