1 // 2 // Copyright 2022 gRPC authors. 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef GRPC_SRC_CORE_LOAD_BALANCING_OUTLIER_DETECTION_OUTLIER_DETECTION_H 18 #define GRPC_SRC_CORE_LOAD_BALANCING_OUTLIER_DETECTION_OUTLIER_DETECTION_H 19 20 #include <grpc/support/port_platform.h> 21 22 #include <stdint.h> // for uint32_t 23 24 #include "absl/types/optional.h" 25 26 #include "src/core/lib/gprpp/time.h" 27 #include "src/core/lib/gprpp/validation_errors.h" 28 #include "src/core/lib/json/json.h" 29 #include "src/core/lib/json/json_args.h" 30 #include "src/core/lib/json/json_object_loader.h" 31 32 namespace grpc_core { 33 34 struct OutlierDetectionConfig { 35 Duration interval = Duration::Seconds(10); 36 Duration base_ejection_time = Duration::Milliseconds(30000); 37 Duration max_ejection_time = Duration::Milliseconds(30000); 38 uint32_t max_ejection_percent = 10; 39 struct SuccessRateEjection { 40 uint32_t stdev_factor = 1900; 41 uint32_t enforcement_percentage = 100; 42 uint32_t minimum_hosts = 5; 43 uint32_t request_volume = 100; 44 SuccessRateEjectionOutlierDetectionConfig::SuccessRateEjection45 SuccessRateEjection() {} 46 47 bool operator==(const SuccessRateEjection& other) const { 48 return stdev_factor == other.stdev_factor && 49 enforcement_percentage == other.enforcement_percentage && 50 minimum_hosts == other.minimum_hosts && 51 request_volume == other.request_volume; 52 } 53 54 static const JsonLoaderInterface* JsonLoader(const JsonArgs&); 55 void JsonPostLoad(const Json&, const JsonArgs&, ValidationErrors* errors); 56 }; 57 struct FailurePercentageEjection { 58 uint32_t threshold = 85; 59 uint32_t enforcement_percentage = 100; 60 uint32_t minimum_hosts = 5; 61 uint32_t request_volume = 50; 62 FailurePercentageEjectionOutlierDetectionConfig::FailurePercentageEjection63 FailurePercentageEjection() {} 64 65 bool operator==(const FailurePercentageEjection& other) const { 66 return threshold == other.threshold && 67 enforcement_percentage == other.enforcement_percentage && 68 minimum_hosts == other.minimum_hosts && 69 request_volume == other.request_volume; 70 } 71 72 static const JsonLoaderInterface* JsonLoader(const JsonArgs&); 73 void JsonPostLoad(const Json&, const JsonArgs&, ValidationErrors* errors); 74 }; 75 absl::optional<SuccessRateEjection> success_rate_ejection; 76 absl::optional<FailurePercentageEjection> failure_percentage_ejection; 77 78 bool operator==(const OutlierDetectionConfig& other) const { 79 return interval == other.interval && 80 base_ejection_time == other.base_ejection_time && 81 max_ejection_time == other.max_ejection_time && 82 max_ejection_percent == other.max_ejection_percent && 83 success_rate_ejection == other.success_rate_ejection && 84 failure_percentage_ejection == other.failure_percentage_ejection; 85 } 86 87 static const JsonLoaderInterface* JsonLoader(const JsonArgs&); 88 void JsonPostLoad(const Json& json, const JsonArgs&, 89 ValidationErrors* errors); 90 }; 91 92 } // namespace grpc_core 93 94 #endif // GRPC_SRC_CORE_LOAD_BALANCING_OUTLIER_DETECTION_OUTLIER_DETECTION_H 95