Struct TuningConfig 

pub struct TuningConfig {

    pub profile: Option<TuningProfile>,
    pub batch_size: Option<usize>,
    pub batch_size_memory_mb: Option<usize>,
    pub throttle_ms: Option<u64>,
    pub statement_timeout_s: Option<u64>,
    pub max_retries: Option<u32>,
    pub retry_backoff_ms: Option<u64>,
    pub lock_timeout_s: Option<u64>,
    pub memory_threshold_mb: Option<usize>,
    pub max_batch_memory_mb: Option<usize>,
    pub on_batch_memory_exceeded: Option<BatchMemoryPolicy>,
    pub adaptive: Option<bool>,
    pub min_parallel: Option<usize>,
    pub max_value_mb: Option<usize>,
}

Fields

profile: Option<TuningProfile>

batch_size: Option<usize>

batch_size_memory_mb: Option<usize>

Target memory per batch in MB. Mutually exclusive with batch_size.

throttle_ms: Option<u64>

statement_timeout_s: Option<u64>

max_retries: Option<u32>

retry_backoff_ms: Option<u64>

lock_timeout_s: Option<u64>

memory_threshold_mb: Option<usize>

max_batch_memory_mb: Option<usize>

Hard cap on Arrow batch memory in MB. When a batch exceeds this limit, on_batch_memory_exceeded determines the response.

on_batch_memory_exceeded: Option<BatchMemoryPolicy>

Policy applied when a batch exceeds max_batch_memory_mb. Default: warn.

adaptive: Option<bool>

Enable real-time batch size adaptation based on DB pressure metrics. Postgres: samples pg_stat_bgwriter. MySQL: samples Innodb_log_waits. Also arms the OPT-2 concurrency governor when parallel > 1.

min_parallel: Option<usize>

Floor for the concurrency governor (lowest parallelism under pressure). Default 1. Ceiling is the export’s parallel.

max_value_mb: Option<usize>

Hard per-value size ceiling in MB. A single text/JSON/blob cell larger than this aborts the run with RIVET_VALUE_TOO_LARGE. 0 disables the guard. Default: 256.

Trait Implementations

impl Clone for TuningConfig

fn clone(&self) -> TuningConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TuningConfig

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

Formats the value using the given formatter.

impl Default for TuningConfig

fn default() -> TuningConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TuningConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for TuningConfig

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl Serialize for TuningConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.