Struct MaintenanceTuning 

pub struct MaintenanceTuning {
    pub auto_analyze_min_mutations: u64,
    pub clone_sweep_interval_ms: u64,
    pub constraint_reconcile_interval_ms: u64,
    pub scope_expiry_interval_secs: u64,
}

Tuning knobs for background maintenance triggered by user writes.

Fields

auto_analyze_min_mutations: u64

Smallest mutation count that can trigger an automatic ANALYZE.

The trigger fires at max(last_row_count / 10, this). Lowering it refreshes a small collection’s statistics sooner. Raising it trades planner accuracy for fewer background scans.

clone_sweep_interval_ms: u64

Interval between clone materializer sweeps, in milliseconds.

The sweep progresses cloned collections from Shadowed to Materialized without explicit DDL. Lowering it materializes clones sooner, at the cost of more scan passes.

constraint_reconcile_interval_ms: u64

Interval between CRDT constraint reconcile passes, in milliseconds.

Each pass re-derives every collection’s constraint set from the catalog and replicates it to data-group replicas. Lowering it converges an altered collection sooner, at the cost of catalog reads and Raft proposals.

scope_expiry_interval_secs: u64

Interval between scope grant expiry sweeps, in seconds.

Each sweep executes the ON EXPIRE action of every expired grant. ScopeGrant::is_effective already enforces expiry on every read, so this loop only makes the outcome durable. 10 is the floor. Below it the sweep costs more than the resolution it buys.

Trait Implementations

impl Clone for MaintenanceTuning

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MaintenanceTuning

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

Formats the value using the given formatter.

impl Default for MaintenanceTuning

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MaintenanceTuning

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MaintenanceTuning

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.