Memory usage for the ngx_http_limit_req_module module

Hello, I'm using the "nxg_http_limit_req" module to limit the service usage. I've a questions about the "limit_req_zone" directive: how can I set the correct size for the zone? In docs I see that "One megabyte zone can keep about 16 thousand 64-byte states", how can I know how much memory is nec

Access to query param with dashes in the name

Hi, for the http header Nginx Nginx convert the dashes in the header name to underscores. I have a query string with a param with a dash in the name, but i can't see it with $arg_PARAMETER variable. There is a way to have the value of this parameter in a variable? For example my query string is: