proto/aggregation.proto

syntax = "proto3";

package elastic.apm.v1;

option go_package = "./aggregationpb";
option optimize_for = SPEED;

message CombinedMetrics {
  repeated KeyedServiceMetrics service_metrics = 1;
  Overflow overflow_services = 2;
  bytes overflow_services_estimator = 3;
  double events_total = 4;
  uint64 youngest_event_timestamp = 5;
}

message KeyedServiceMetrics {
  ServiceAggregationKey key = 1;
  ServiceMetrics metrics = 2;
}

message ServiceAggregationKey {
  uint64 timestamp = 1;
  string service_name = 2;
  string service_environment = 3;
  string service_language_name = 4;
  string agent_name = 5;
  bytes global_labels_str = 6;
}

message ServiceMetrics {
  Overflow overflow_groups = 1;
  repeated KeyedTransactionMetrics transaction_metrics = 2;
  repeated KeyedServiceTransactionMetrics service_transaction_metrics = 3;
  repeated KeyedSpanMetrics span_metrics = 4;
}

message KeyedTransactionMetrics {
  TransactionAggregationKey key = 1;
  TransactionMetrics metrics = 2;
}

message TransactionAggregationKey {
  bool trace_root = 1;
  
  string container_id = 2;
  string kubernetes_pod_name = 3;

  string service_version = 4;
  string service_node_name = 5;

  string service_runtime_name = 6;
  string service_runtime_version = 7;
  string service_language_version = 8;

  string host_hostname = 9;
  string host_name = 10;
  string host_os_platform = 11;

  string event_outcome = 12;

  string transaction_name = 13;
  string transaction_type = 14;
  string transaction_result = 15;

  uint32 faas_coldstart = 16;
  string faas_id = 17;
  string faas_name = 18;
  string faas_version = 19;
  string faas_trigger_type = 20;

  string cloud_provider = 21;
  string cloud_region = 22;
  string cloud_availability_zone = 23;
  string cloud_service_name = 24;
  string cloud_account_id = 25;
  string cloud_account_name = 26;
  string cloud_machine_type = 27;
  string cloud_project_id = 28;
  string cloud_project_name = 29;
}

message TransactionMetrics {
  HDRHistogram histogram = 1;
}

message KeyedServiceTransactionMetrics {
  ServiceTransactionAggregationKey key = 1;
  ServiceTransactionMetrics metrics = 2;
}

message ServiceTransactionAggregationKey {
  string transaction_type = 1;
}

message ServiceTransactionMetrics {
  HDRHistogram histogram = 1;
  double failure_count = 2;
  double success_count = 3;
}

message KeyedSpanMetrics {
  SpanAggregationKey key = 1;
  SpanMetrics metrics = 2;
}

message SpanAggregationKey {
  string span_name = 1;
  string outcome = 2;

  string target_type = 3;
  string target_name = 4;

  string resource = 5;
}

message SpanMetrics {
  double count = 1;
  double sum = 2;
}

message Overflow {
  TransactionMetrics overflow_transactions = 1;
  ServiceTransactionMetrics overflow_service_transactions = 2;
  SpanMetrics overflow_spans = 3;
  bytes overflow_transactions_estimator = 4;
  bytes overflow_service_transactions_estimator = 5;
  bytes overflow_spans_estimator = 6;
}

message HDRHistogram {
  int64 lowest_trackable_value = 1;
  int64 highest_trackable_value = 2;
  int64 significant_figures = 3;
  repeated int64 counts = 4;
  repeated int32 buckets = 5;
}