Next line returns 200 as status https://github.com/Kong/kong/blob/c817fada7a514d84f6e0aab7461605c71bf3a841/kong/plugins/cors/handler.lua#L13

Internet says it should return 204:

• https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request
• https://docs.microsoft.com/en-us/aspnet/core/security/cors?view=aspnetcore-3.1#preflight-requests

Internet changed its mind since 2018 https://

Issue description

See code in apisix/balancer/ewma.lua:

local function _ewma_after_balance(ctx, before_retry)
    if before_retry then
        -- don't count tries which fail to complete
        return nil 
    end 

    local response_time = tonumber(ctx.var.upstream_response_time) or 0
    local connect_time = tonumber(ctx.var.upstream_connect_time) or 0
    local rtt = conn

Since maxmind no longer provides the legacy GeoIP databases could it might be possible to update the nxtool to use GeoIP2?

In lieu of #283, implement Stackdriver Canary Analysis for use in GKE.

Percona is quite strict on having primary keys on all tables (and rightly so).
Please add primary keys to all tables, even if it's just an auto-increment.

It's mostly just the following tables:
authentication_logs (could just get a auto-increment primary key added)
identity_verification_tokens (could just set the token as primary key)