Struct SnapshotCadence 

pub struct SnapshotCadence {
    pub every_entries: i64,
    pub poll_interval: Duration,
}

How often the maintenance task writes an anchor (§5.5).

§5.5 specifies “every 10,000 log entries”, which is a distance rather than a schedule — the point is to bound how much delta a reconstruction has to fold, and delta is measured in log entries, not seconds. An idle database therefore writes nothing at all, however long it stays open.

poll_interval is how often that distance is checked, and it is the part §5.5 does not specify because it is an implementation cost rather than a property: the check is SELECT MAX(seq_id), an index lookup on an integer primary key, so the interval trades a negligible read against how promptly a burst of writes is noticed.

Fields

every_entries: i64

Write an anchor once the log has grown this many entries past the last.

poll_interval: Duration

How often to compare the log’s head against the last anchor.

Trait Implementations

impl Clone for SnapshotCadence

fn clone(&self) -> SnapshotCadence

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SnapshotCadence

impl Debug for SnapshotCadence

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

Formats the value using the given formatter.

impl Default for SnapshotCadence

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SnapshotCadence

impl PartialEq for SnapshotCadence

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SnapshotCadence