This article details the steps to limit the number of concurrent connections for web cache.
Scope
FortiWeb-VM, FortiWeb above v7.4.3.
Solution
In FortiWeb with web cache in place, from v7.4.3 new CLI command is added to limit the number of concurrent connections for web cache. This helps to avoid memory overconsumption on FortiWeb by web cache.
This command is applied globally on FortiWeb. Below are the CLI commands to follow:
FortiWeb # config system global FortiWeb (global) # set webcache-concurrent-requests 10 FortiWeb (global) # end
Note:
0 means no limit. The default is 0.
The above commands will limit the number of concurrent requests going to the web cache to 10 (set the number according to the application's needs) concurrent connections. If it exceeds this threshold, the request is forwarded back to the origin server instead of going to the web cache.
