Struct HedgeConfig 

pub struct HedgeConfig {
    pub hedge_after_ms: u64,
    pub hedge_max: u32,
}

Request hedging configuration (DW-063, upstreams[].retries.hedge).

After hedge_after_ms without a response, a speculative duplicate request is sent to a different endpoint. The first response (headers resolved) wins; the loser is cancelled. Hedging requires a replayable body (buffer_max_bytes > 0) and idempotent semantics (POST is hedged only when retry_post is true).

Fields

hedge_after_ms: u64

Milliseconds to wait before sending a hedge copy (the “tail latency” threshold). Must be > 0. A typical value is the p90 latency of the upstream — requests slower than this get a speculative parallel copy.

hedge_max: u32

Maximum number of speculative hedge copies per request (default 1). Must be in [1, 4]. Hedge copies are NOT charged against the retry budget — the budget prevents retry storms after failures, while hedging is a proactive performance optimization.

Trait Implementations

impl Clone for HedgeConfig

fn clone(&self) -> HedgeConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HedgeConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HedgeConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for HedgeConfig

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for HedgeConfig

fn eq(&self, other: &HedgeConfig) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for HedgeConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for HedgeConfig