Enum NodeRole 

pub enum NodeRole {
    Follower,
    Candidate,
    Leader,
    Learner,
    Observer,
}

Role of a Raft node within a group.

Variants

Follower

Candidate

Leader

Learner

Non-voting member catching up: a new node joins as learner first.

Observer

Cross-cluster observer: receives log entries from a source cluster as a non-voting, non-quorum member. Unlike a Learner, an observer never transitions to Voter within this group — it permanently observes. Acks are advisory and never gate commit on the source.

Trait Implementations

impl Clone for NodeRole

fn clone(&self) -> NodeRole

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NodeRole

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

Formats the value using the given formatter.

impl PartialEq for NodeRole

fn eq(&self, other: &NodeRole) -> 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 Copy for NodeRole

impl Eq for NodeRole

impl StructuralPartialEq for NodeRole