By cpeters5
Was there anything happened around Jan 20, @21:30?
CPU jumped from average of 30% to 60%, bandwidth jumpe3d from average of 15mb/s to almost 40mb/s. There wasn’t any change in my gunicorn configuration nor my application. I ran top command and found gunicorn consumed almost 100% cpu.
12203 chariya 20 0 822400 348132 17792 R 99.0 4.4 2:17.49 gunicorn
12500 chariya 20 0 777204 379904 17344 R 97.3 4.8 0:45.42 gunicorn
12518 chariya 20 0 955128 557472 17344 R 46.5 7.0 1:03.91 gunicorn
12537 chariya 20 0 584088 186712 17344 R 45.2 2.3 0:57.25 gunicorn
12520 chariya 20 0 501596 104076 17344 R 26.9 1.3 0:40.43 gunicorn
12492 chariya 20 0 502640 104900 17344 S 20.6 1.3 0:37.56 gunicorn
12485 chariya 20 0 586032 188912 17344 S 4.3 2.4 1:54.61 gunicorn
3543 nginx 20 0 162596 25296 19636 S 1.7 0.3 4:52.36 nginx
12206 chariya 20 0 544992 147452 17344 S 1.3 1.8 3:14.78 gunicorn
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Hi @cpeters5,
It’s quite possible the traffic increased. Do you have any tools to monitor traffic coming to your application? I’ll suggest checking them out. That’s the first thing that comes to my mind if you haven’t made any other changes.
See if the CPU utilization is a 100% even after in the evenings when traffic should be lower. Again this should give you some information as to what is going on.
Regards, KFSys
I also had this issue where my CPU suddenly jumped up to 100%. I checked the logs of my gunicorn worker with sudo systemctl status gunicorn and realised I had a bot crawling the site taking up all of the resources. I blocked this bot in my nginx file.
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