Struct OwnershipTransition 

pub struct OwnershipTransition {
    pub range: String,
    pub new_owner: ClusterVoterIdentity,
    pub ownership_epoch: u64,
}

The shard/range ownership-catalog change recorded by a single control-plane log entry. This is deliberately the fact of a fenced transition, not the full catalog schema (that lives with ADR 0037 / ADR 0045 follow-ups): the boundary this module fixes is only that ownership transitions are control-plane log entries written by the leader, with an ownership epoch that fences the old owner.

Fields

range: String

The range whose ownership is changing, named opaquely here so this boundary type does not pin the range-id encoding the catalog slice owns.

new_owner: ClusterVoterIdentity

The new owner after the transition.

ownership_epoch: u64

The ownership epoch the transition bumps to. A monotonic epoch is what fences a stale owner that reappears (ADR 0037 “Fencing is enforced below routing”); recording it in the consensus log makes the fence durable.

Trait Implementations

impl Clone for OwnershipTransition

fn clone(&self) -> OwnershipTransition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OwnershipTransition

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

Formats the value using the given formatter.

impl Eq for OwnershipTransition

impl PartialEq for OwnershipTransition

fn eq(&self, other: &OwnershipTransition) -> 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 StructuralPartialEq for OwnershipTransition