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- Global rate limiting architecture overview
- v2 API reference
- This filter should be configured with the name envoy.ratelimit.
Statistics
Every configured rate limit filter has statistics rooted at ratelimit.
| Name | Type | Description |
|---|---|---|
| total | Counter | Total requests to the rate limit service |
| error | Counter | Total errors contacting the rate limit service |
| over_limit | Counter | Total over limit responses from the rate limit service |
| ok | Counter | Total under limit responses from the rate limit service |
| cx_closed | Counter | Total connections closed due to an over limit response from the rate limit service |
| active | Gauge | Total active requests to the rate limit service |
| failure_mode_allowed | Counter | Total requests that were error(s) but were allowed through because of failure_mode_deny set to false. |
Runtime
The network rate limit filter supports the following runtime settings:
ratelimit.tcp_filter_enabled
% of connections that will call the rate limit service. Defaults to 100.
ratelimit.tcp_filter_enforcing
% of connections that will call the rate limit service and enforce the decision. Defaults to 100. This can be used to test what would happen before fully enforcing the outcome.
