Struct RangeAuthority 

pub struct RangeAuthority {
    pub range_id: u64,
    pub min_term: u64,
    pub min_ownership_epoch: u64,
}

Issue #991 — the range-authority watermark a replica or recovery target holds for a single range: the minimum term and ownership epoch it will accept for that range’s user-data changes.

The physical WAL stays the source of truth; this fence operates purely on the derived metadata each ChangeRecord carries. A record stamped for this range whose term or ownership epoch is behind the watermark is a write from a stale (deposed) owner or a superseded timeline and must be rejected before it is applied. Records for a different range, or records with no range identity at all (legacy / non-range-replicated), are not this fence’s concern and pass through untouched.

Fields

range_id: u64

min_term: u64

min_ownership_epoch: u64

Implementations

impl RangeAuthority

pub fn admit(&self, record: &ChangeRecord) -> Result<(), RangeAdmitError>

Decide whether record may be applied to this range. Only records explicitly stamped for self.range_id are gated; everything else is admitted. Term is checked before epoch so a stale timeline is reported as such even when its epoch also lags.

Trait Implementations

impl Clone for RangeAuthority

fn clone(&self) -> RangeAuthority

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RangeAuthority

impl Debug for RangeAuthority

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

Formats the value using the given formatter.

impl Eq for RangeAuthority

impl PartialEq for RangeAuthority

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