Woke up today and saw High CPU Usage

[romank]

Hello Everyone,

Todays morning wasnt as good as yesterday. I just have been triggered that FortiWeb 600D has high CPU usage and some services arent running. So I started SSH session to check basic debug commands and saw that "7402m 46.6   0 77.5 /bin/proxy" <--- this process was taking most of CPU load peak were to 90%. Im wonder what could be the issue. There was no high traffic, a few hundreds of sessions which nothing for this WAF model.

Lastly I did software upgrade  from 7.0.x to 7.0.10 so it wasnt big upgrade. Im not sure if there is a bug in this version, release note didnt mentioned anything that would indicate problems with proxy process or high cpu usage. So I started to disable security profiles - "cookie security" and suddenly CPU load dropped to few %. Do you have some advice how to troubleshoot it further? what commadns are useful? 

[AEK]

Hi Romank

Hope this helps:

https://docs.fortinet.com/document/fortiweb/7.4.2/troubleshooting-guide/296153/checking-cpu-informat...