Struct junction_api::backend::RingHashParams

pub struct RingHashParams {
    pub min_ring_size: u32,
    pub hash_params: Vec<SessionAffinityHashParam>,
}

Policy for configuring a ketama-style consistent hashing algorithm.

Fields

min_ring_size: u32

The minimum size of the hash ring

hash_params: Vec<SessionAffinityHashParam>

How to hash an outgoing request into the ring.

Hash parameters are applied in order. If the request is missing an input, it has no effect on the final hash. Hashing stops when only when all polices have been applied or a terminal policy matches part of an incoming request.

This allows configuring a fallback-style hash, where the value of HeaderA gets used, falling back to the value of HeaderB.

If no policies match, a random hash is generated for each request.

Trait Implementations

impl Clone for RingHashParams

fn clone(&self) -> RingHashParams

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RingHashParams

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RingHashParams

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for RingHashParams

fn eq(&self, other: &RingHashParams) -> 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 RingHashParams

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 RingHashParams