Troubleshooting Tip: Config error log 'cache-mem-percent' post upgrade from v7.2 to v7.4 in FortiGate

The message 'set cache-mem-percent 1 @ global.webfilter.fortiguard:command parse error (error -61)' is a parse error due to a change in the configuration parameter from 'cache-mem-percent' in v7.2 to 'cache-mem-permille' in v7.4.

• In v7.0/7.2, under 'config webfilter fortiguard', the default configuration is:

config webfilter fortiguard

    set cache-mem-percent 2

• In v7.4, the same configuration has the following default value:

config webfilter fortiguard

    set cache-mem-permille 1

• To check the current value, run the following command on the system (in Global if multi VDOM mode is enabled):

show full-configuration webfilter fortiguard | grep cache-mem

The change was made to allocate a minor portion of memory for the rating cache, which was considered more justified.
The default value was changed from 2% (set cache-mem-percent 2) to 0.1% (set cache-mem-permille 1) of the FortiGate memory.