FortiGate Firewall Memory Usage goes high
memory usage appear? Idle? Normal? Heavy load?
Fortinet Fortigate process list and memory use
How to detect and watch fortigate process
High / heavy: load, memory, cpu, conserved mode



Memory usage should not exceed 90 percent. If memory is too full, some processes will not be able to function properly. For example, if the system is running low on memory, antivirus scanning will go into failopen mode where it will start dropping connections or bypass the antivirus system.When high memory usage happens, you may experience services that appear to freeze up and connections are lost or new connections are refused.

Ram:



we are reaching 73% of memory and could it possible to decrease the consumption of the memory?

:

Bad performance, bad security, fortigate entered conserved mode

Do you have a policy near the top of your rule set that has IPS on it in which most traffic hits?
It looks like your IPS sensors are eating it alive because of traffic levels and work load.

Diagnose



Restart Fortigate / Fortinet Firwall <or>

Kill / restart / watch fortigate high consumer processes
Connect to Fortigate via SSH or use the Web CLI

Enter the command =
:
diagnose sys top-summary 
to display the Fortigate process list
Press "m" to sort by memoryPress "c" to sort by cpu

:
https://forum.fortinet.com/tm.aspx?m=113643
https://www.fortinetguru.com/2017/01...ory-resources/