I am trying learn to setup DHIS2 on a Linode server according to tutorial.The server is mainly used for configuration and testing. Since last 2 weeks the CPU is being used >100%. Seems there are 2 zombie services who may be using the CPU. I have tried rebooting the Linode instance and restarting the docker images but the CPU utilisation is still >100%
Can you please help in identifying the cause for high CPU utilization?
attaching the screenshots of CPU use and top output.
You could be having someone using your server as a mine. Happened to me once. I did back up all my apps and databases and deleted the OS I had put, this was Ubuntu, and rebuilt a fresh one, this time with a simple firewall.
But before I deleted it, I exhausted the following post and other posts. If you have time, please try all the steps listed.
Dear Moses,
Thanks for sharing your experience and the resource.
I have tried the Linode page to get an idea what is happening. I had installed without creating a non-root user, so found that there were some unauthorized login attempts.
Now I have disabled root login with a simple firewall.
Tried Longview feature in Linode to get system metric, which shows few Java processes that are taking most of the CPU.
