Enum DurabilityMode 

pub enum DurabilityMode {
    Sync,
    Batch {
        max_delay_ms: u64,
        max_records: u64,
    },
    Adaptive {
        target_interval_ms: u64,
    },
    NoSync,
}

WAL durability mode controlling the trade-off between safety and speed.

This enum lives in config so that Config can always carry the desired durability regardless of whether the wal feature is compiled in. When WAL is enabled, the engine maps this to the adapter-level durability mode.

Variants

Sync

Fsync after every commit. Slowest but safest.

Batch

Batch fsync periodically. Good balance of performance and durability.

Fields

max_delay_ms: u64

Maximum time between syncs in milliseconds.

max_records: u64

Maximum records between syncs.

Adaptive

Adaptive sync via a background flusher thread.

Fields

target_interval_ms: u64

Target interval between flushes in milliseconds.

NoSync

No sync - rely on OS buffer flushing. Fastest but may lose recent data.

Trait Implementations

impl Clone for DurabilityMode

fn clone(&self) -> DurabilityMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DurabilityMode

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

Formats the value using the given formatter.

impl Default for DurabilityMode

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for DurabilityMode

fn eq(&self, other: &DurabilityMode) -> 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 Copy for DurabilityMode

impl Eq for DurabilityMode

impl StructuralPartialEq for DurabilityMode