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syntax = "proto3";
package envoy.api.v2.cluster;
option java_outer_classname = "CircuitBreakerProto";
option java_multiple_files = true;
option java_package = "io.envoyproxy.envoy.api.v2.cluster";
option go_package = "cluster";
option csharp_namespace = "Envoy.Api.V2.ClusterNS";
import "envoy/api/v2/core/base.proto";
import "google/protobuf/wrappers.proto";
import "gogoproto/gogo.proto";
option (gogoproto.equal_all) = true;
// [#protodoc-title: Circuit breakers]
// :ref:`Circuit breaking<arch_overview_circuit_break>` settings can be
// specified individually for each defined priority.
message CircuitBreakers {
// A Thresholds defines CircuitBreaker settings for a
// :ref:`RoutingPriority<envoy_api_enum_core.RoutingPriority>`.
message Thresholds {
// The :ref:`RoutingPriority<envoy_api_enum_core.RoutingPriority>`
// the specified CircuitBreaker settings apply to.
// [#comment:TODO(htuch): add (validate.rules).enum.defined_only = true once
// https://github.com/lyft/protoc-gen-validate/issues/42 is resolved.]
core.RoutingPriority priority = 1;
// The maximum number of connections that Envoy will make to the upstream
// cluster. If not specified, the default is 1024.
google.protobuf.UInt32Value max_connections = 2;
// The maximum number of pending requests that Envoy will allow to the
// upstream cluster. If not specified, the default is 1024.
google.protobuf.UInt32Value max_pending_requests = 3;
// The maximum number of parallel requests that Envoy will make to the
// upstream cluster. If not specified, the default is 1024.
google.protobuf.UInt32Value max_requests = 4;
// The maximum number of parallel retries that Envoy will allow to the
// upstream cluster. If not specified, the default is 3.
google.protobuf.UInt32Value max_retries = 5;
// If track_remaining is true, then stats will be published that expose
// the number of resources remaining until the circuit breakers open. If
// not specified, the default is false.
bool track_remaining = 6;
// The maximum number of connection pools per cluster that Envoy will concurrently support at
// once. If not specified, the default is unlimited. Set this for clusters which create a
// large number of connection pools. See
// :ref:`Circuit Breaking <arch_overview_circuit_break_cluster_maximum_connection_pools>` for
// more details.
google.protobuf.UInt32Value max_connection_pools = 7;
}
// If multiple :ref:`Thresholds<envoy_api_msg_cluster.CircuitBreakers.Thresholds>`
// are defined with the same :ref:`RoutingPriority<envoy_api_enum_core.RoutingPriority>`,
// the first one in the list is used. If no Thresholds is defined for a given
// :ref:`RoutingPriority<envoy_api_enum_core.RoutingPriority>`, the default values
// are used.
repeated Thresholds thresholds = 1;
}
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