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I encountered a strange error with pm2 that has the following properties:
pm2 listdisplays nothing even though processes should be running- After restarting a couple of projects,
pm2 liststill displays nothing - Running
pm2 listhogs the server and creates a spike (see picture below).
Killing pm2, node, and reinstalling the latest version of pm2 fixed the problem for me.
pkill -9 PM2
pkill -9 node
npm i -g pm2@latest`
After you have done these things, restart each of your applications and pm2 should run fine again.