Struct CommitWatermark 

pub struct CommitWatermark {
    pub term: u64,
    pub lsn: u64,
}

The highest (term, lsn) known durable for a range under its commit policy — the range commit watermark. Per the glossary, “failover and interrupted move-range recovery may promote only a candidate whose log covers this watermark”, so it is the bar a transition’s safety evidence must clear.

Fields

term: u64

The owning term at the watermark. A candidate on an older term has not observed the latest authority and cannot be promoted.

lsn: u64

The highest durable WAL LSN for the range.

Implementations

impl CommitWatermark

pub fn new(term: u64, lsn: u64) -> CommitWatermark

Trait Implementations

impl Clone for CommitWatermark

fn clone(&self) -> CommitWatermark

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CommitWatermark

impl Debug for CommitWatermark

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

Formats the value using the given formatter.

impl Eq for CommitWatermark

impl PartialEq for CommitWatermark

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