Struct FeatureStoreConfig 

pub struct FeatureStoreConfig {
    pub online_cache_capacity: usize,
    pub write_buffer_size: usize,
    pub write_buffer_max_age_micros: u64,
    pub default_ttl_seconds: u64,
    pub freshness_threshold: f64,
    pub sync_on_write: bool,
    pub parallelism: usize,
    pub compaction_threshold: f64,
}

Feature store configuration.

Controls the performance trade-offs between latency, throughput, and durability.

Examples

use synadb::feature_store::FeatureStoreConfig;

// High-throughput ingestion config
let config = FeatureStoreConfig {
    online_cache_capacity: 200_000,
    write_buffer_size: 8192,
    sync_on_write: false,
    ..Default::default()
};

Fields

online_cache_capacity: usize

Maximum entities in online cache (default: 100,000).

write_buffer_size: usize

Write buffer flush threshold in entries (default: 4096).

write_buffer_max_age_micros: u64

Write buffer max age before flush in microseconds (default: 10,000 = 10ms).

default_ttl_seconds: u64

Default TTL for features without explicit TTL in seconds (default: 86400 = 1 day).

freshness_threshold: f64

DAVO freshness threshold below which features are considered stale (default: 0.5).

sync_on_write: bool

Enable sync_on_write for durability (default: false for throughput).

parallelism: usize

Number of threads for parallel dataset generation (default: 0 = num_cpus).

compaction_threshold: f64

Compaction threshold: ratio of superseded entries triggering compaction (default: 0.5).

Implementations

impl FeatureStoreConfig

pub fn validate(&self) -> Result<()>

Validate the configuration, returning an error for invalid values.

Trait Implementations

impl Clone for FeatureStoreConfig

fn clone(&self) -> FeatureStoreConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FeatureStoreConfig

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

Formats the value using the given formatter.

impl Default for FeatureStoreConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FeatureStoreConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FeatureStoreConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.