Struct RoleWeightedQuorum 

pub struct RoleWeightedQuorum {
    pub weights: HashMap<String, u32>,
    pub min_quorum_weight: u32,
}

RoleWeightedQuorum: weights survival by role importance rather than raw node count.

Each role carries a weight. A member’s weight is the max weight among its roles (0 if it holds no weighted role). The reachable side survives (DownUnreachable) iff the sum of its Up members’ weights is at least min_quorum_weight; otherwise this node steps down (DownSelf).

This lets a numerically larger partition that happens to lack the heavyweight (core) roles be the side that is downed — see the role_weighted_* tests.

Fields

weights: HashMap<String, u32>

min_quorum_weight: u32

Implementations

impl RoleWeightedQuorum

pub fn new(weights: HashMap<String, u32>, min_quorum_weight: u32) -> Self

Trait Implementations

impl Clone for RoleWeightedQuorum

fn clone(&self) -> RoleWeightedQuorum

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoleWeightedQuorum

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

Formats the value using the given formatter.

impl Default for RoleWeightedQuorum

fn default() -> RoleWeightedQuorum

Returns the “default value” for a type.

impl DowningStrategy for RoleWeightedQuorum

fn decide(&self, r: &[&Member], _u: &[&Member]) -> DowningDecision