package envoy.config.filter.http.adaptive_concurrency.v2alpha

oneof concurrency_controller_config
- GradientControllerConfig gradient_controller_config = 1
  Gradient concurrency control will be used.
optional api.v2.core.RuntimeFeatureFlag enabled = 2
If set to false, the adaptive concurrency filter will operate as a pass-through filter. If the message is unspecified, the filter will be enabled.

Configuration parameters for the gradient controller.

optional type.Percent sample_aggregate_percentile = 1
The percentile to use when summarizing aggregated samples. Defaults to p50.
optional GradientControllerConfig.ConcurrencyLimitCalculationParams concurrency_limit_params = 2
optional GradientControllerConfig.MinimumRTTCalculationParams min_rtt_calc_params = 3

Parameters controlling the periodic recalculation of the concurrency limit from sampled request latencies.

optional google.protobuf.UInt32Value max_concurrency_limit = 2
The allowed upper-bound on the calculated concurrency limit. Defaults to 1000.
optional google.protobuf.Duration concurrency_update_interval = 3
The period of time samples are taken to recalculate the concurrency limit.

Parameters controlling the periodic minRTT recalculation. [#next-free-field: 6]

optional google.protobuf.Duration interval = 1
The time interval between recalculating the minimum request round-trip time.
optional google.protobuf.UInt32Value request_count = 2
The number of requests to aggregate/sample during the minRTT recalculation window before updating. Defaults to 50.
optional type.Percent jitter = 3
Randomized time delta that will be introduced to the start of the minRTT calculation window. This is represented as a percentage of the interval duration. Defaults to 15%. Example: If the interval is 10s and the jitter is 15%, the next window will begin somewhere in the range (10s - 11.5s).
optional google.protobuf.UInt32Value min_concurrency = 4
The concurrency limit set while measuring the minRTT. Defaults to 3.
optional type.Percent buffer = 5
Amount added to the measured minRTT to add stability to the concurrency limit during natural variability in latency. This is expressed as a percentage of the measured value and can be adjusted to allow more or less tolerance to the sampled latency values. Defaults to 25%.

message AdaptiveConcurrency