Enum SyncNackError 

pub enum SyncNackError {
    NotLeader = 1,
    BadRange = 2,
    Backpressure = 3,
    ChannelClosed = 4,
}

Typed rejection error in SyncNack. Replicas key their retry policy on the variant — never silently treat as transport-level failure (the reliable-stream layer surfaces transport errors separately).

Variants

NotLeader = 1

Receiver is not the leader for this channel. Replica should re-resolve leadership via Mesh::find_chain_holders.

BadRange = 2

since_seq lies outside the leader’s retained range. Replica should trim its local tail and retry from the leader’s first available seq.

Backpressure = 3

Leader is currently saturated. Replica should exponentially back off and retry the same request.

ChannelClosed = 4

Channel was closed. Replica withdraws its role and emits a metric.

Trait Implementations

impl Clone for SyncNackError

fn clone(&self) -> SyncNackError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SyncNackError

impl Debug for SyncNackError

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

Formats the value using the given formatter.

impl Eq for SyncNackError

impl PartialEq for SyncNackError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SyncNackError