Struct LiteConfig 

pub struct LiteConfig {
    pub memory_budget: usize,
    pub hnsw_percent: usize,
    pub csr_percent: usize,
    pub loro_percent: usize,
    pub query_percent: usize,
    pub argon2_m_cost: u32,
    pub argon2_t_cost: u32,
    pub argon2_p_cost: u32,
}

Runtime configuration for a NodeDB-Lite instance.

All percentage fields express a fraction of memory_budget allocated to the corresponding engine. The remaining percentage is headroom (untracked).

Example

use nodedb_lite::config::LiteConfig;

let cfg = LiteConfig {
    memory_budget: 256 * 1024 * 1024, // 256 MiB
    ..LiteConfig::default()
};

Fields

memory_budget: usize

Total memory budget in bytes. Default: 100 MiB.

hnsw_percent: usize

Percentage of memory_budget reserved for HNSW vector index. Default: 40.

csr_percent: usize

Percentage of memory_budget reserved for CSR graph index. Default: 15.

loro_percent: usize

Percentage of memory_budget reserved for Loro CRDT engine. Default: 15.

query_percent: usize

Percentage of memory_budget reserved for query scratch space. Default: 15.

argon2_m_cost: u32

Argon2id memory cost in KiB. Default: 19 MiB (19_456 KiB). Corresponds to the OWASP recommended minimum for interactive login.

argon2_t_cost: u32

Argon2id iteration count. Default: 2.

argon2_p_cost: u32

Argon2id parallelism lanes. Default: 1.

Implementations

impl LiteConfig

pub fn from_env() -> Self

Load configuration from environment variables, falling back to defaults for any variable that is absent or malformed.

Handled variables:

• NODEDB_LITE_MEMORY_MB — total memory budget in mebibytes (parsed as usize)

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

Validate that percentage fields are coherent.

Returns an error string if:

• Any individual percentage exceeds 100
• The sum of all engine percentages exceeds MAX_TOTAL_ENGINE_PERCENT

Trait Implementations

impl Clone for LiteConfig

fn clone(&self) -> LiteConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LiteConfig

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

Formats the value using the given formatter.

impl Default for LiteConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LiteConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for LiteConfig

impl PartialEq for LiteConfig

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for LiteConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for LiteConfig