Inspect CPU usage in Linode

Linode Alert – CPU Usage
Your Linode, linode4496636, has exceeded the notification threshold (90) for CPU Usage by averaging 199.2% for the last 2 hours. The dashboard for this specific Linode is located at…

htop

Htop is a free (GPL) ncurses-based process viewer for Linux. It is similar to top, but allows you to scroll vertically and horizontally, so you can see all the processes running on the system, along with their full command lines, as well as viewing them as a process tree, selecting multiple processes and acting on them all at once.Tasks related to processes (killing, renicing) can be done without entering their PIDs.

Docker the cause!

sudo systemctl stop docker