'Process 'rumpostgreswk' running on linux and took 100% memory and CPU, where does it come from?

I have a question, I'm running a nodeJs server on a Digital Ocean droplet. I'm using pm2 for monitoring the application, everything looks fine. However suddenly, 100% of the CPU and memory were used by a process called rumpostgreswk screenshot of process. I killed the process but I don't know if it will come back again, as it happened during a night and was the first time. Can someone help me with this issue? Thanks in advance.



Solution 1:[1]

I think you should check the cron.

sudo crontab -u postgres -l

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Solution 1 ddochi