Runtime

health_check.min_interval

Min value for the health checking interval. Default value is 1 ms. The effective health check interval will be no less than 1ms. The health checking interval will be between min_interval and max_interval.

health_check.max_interval

Max value for the health checking . Default value is MAX_INT. The effective health check interval will be no less than 1ms. The health checking interval will be between min_interval and max_interval.

health_check.verify_cluster

What % of health check requests will be verified against the expected upstream service as the will write the remote service cluster into the response.

See the outlier detection architecture overview for more information on outlier detection. The runtime parameters supported by outlier detection are the same as the , namely:

outlier_detection.consecutive_5xx

consecutive_5XX setting in outlier detection

outlier_detection.consecutive_gateway_failure

setting in outlier detection

outlier_detection.consecutive_local_origin_failure

consecutive_local_origin_failure setting in outlier detection

outlier_detection.interval_ms

setting in outlier detection

outlier_detection.base_ejection_time_ms

base_ejection_time setting in outlier detection

outlier_detection.max_ejection_percent

setting in outlier detection

outlier_detection.enforcing_consecutive_5xx

enforcing_consecutive_5xx setting in outlier detection

outlier_detection.enforcing_consecutive_gateway_failure

outlier_detection.enforcing_consecutive_local_origin_failure

setting in outlier detection

outlier_detection.enforcing_success_rate

enforcing_success_rate setting in outlier detection

outlier_detection.enforcing_local_origin_success_rate

setting in outlier detection

outlier_detection.success_rate_minimum_hosts

success_rate_minimum_hosts setting in outlier detection

outlier_detection.success_rate_request_volume

setting in outlier detection

outlier_detection.success_rate_stdev_factor

success_rate_stdev_factor setting in outlier detection

outlier_detection.enforcing_failure_percentage

setting in outlier detection

outlier_detection.enforcing_failure_percentage_local_origin

enforcing_failure_percentage_local_origin setting in outlier detection

outlier_detection.failure_percentage_request_volume

setting in outlier detection

outlier_detection.failure_percentage_minimum_hosts

failure_percentage_minimum_hosts setting in outlier detection

outlier_detection.failure_percentage_threshold

setting in outlier detection

max_ejection_time setting in outlier detection

upstream.healthy_panic_threshold

Sets the percentage. Defaults to 50%.

upstream.use_http2

Whether the cluster uses if configured in HttpProtocolOptions <envoy_v3_msg_config.upstreams.http.v3.HttpProtocolOptions>. Set to 0 to disable HTTP/2 even if the feature is configured. Defaults to enabled.

upstream.use_http3

Whether the cluster uses HTTP/3 if configured in HttpProtocolOptions <envoy_v3_msg_config.upstreams.http.v3.HttpProtocolOptions>. Set to 0 to disable HTTP/3 even if the feature is configured. Defaults to enabled.

upstream.zone_routing.enabled

% of requests that will be routed to the same upstream zone. Defaults to 100% of requests.

upstream.zone_routing.min_cluster_size

Minimal size of the upstream cluster for which zone aware routing can be attempted. Default value is 6. If the upstream cluster size is smaller than min_cluster_size zone aware routing will not be performed.

circuit_breakers.<cluster_name>.<priority>.max_connections

Max connections circuit breaker setting

circuit_breakers.<cluster_name>.<priority>.max_pending_requests

circuit_breakers.<cluster_name>.<priority>.max_requests

Max requests circuit breaker setting

circuit_breakers.<cluster_name>.<priority>.max_retries

circuit_breakers.<cluster_name>.<priority>.retry_budget.budget_percent

Max retries circuit breaker setting

circuit_breakers.<cluster_name>.<priority>.retry_budget.min_retry_concurrency