Struct MetaDeveloperConfig

pub struct MetaDeveloperConfig {
    pub cached_traces_num: u32,
    pub cached_traces_memory_limit_bytes: usize,
    pub enable_trivial_move: bool,
    pub enable_check_task_level_overlap: bool,
    pub max_trivial_move_task_count_per_loop: usize,
    pub max_get_task_probe_times: usize,
    pub actor_cnt_per_worker_parallelism_soft_limit: usize,
    pub actor_cnt_per_worker_parallelism_hard_limit: usize,
    pub hummock_time_travel_sst_info_fetch_batch_size: usize,
}

The subsections [meta.developer].

It is put at MetaConfig::developer.

Fields

cached_traces_num: u32

The number of traces to be cached in-memory by the tracing collector embedded in the meta node.

cached_traces_memory_limit_bytes: usize

The maximum memory usage in bytes for the tracing collector embedded in the meta node.

enable_trivial_move: bool

Compaction picker config

enable_check_task_level_overlap: bool

max_trivial_move_task_count_per_loop: usize

max_get_task_probe_times: usize

actor_cnt_per_worker_parallelism_soft_limit: usize

Max number of actor allowed per parallelism (default = 100). CREATE MV/Table will be noticed when the number of actors exceeds this limit.

actor_cnt_per_worker_parallelism_hard_limit: usize

Max number of actor allowed per parallelism (default = 400). CREATE MV/Table will be rejected when the number of actors exceeds this limit.

hummock_time_travel_sst_info_fetch_batch_size: usize

Max number of SSTs fetched from meta store per SELECT, during time travel Hummock version replay.

Implementations

impl MetaDeveloperConfig

pub fn config_docs( name: String, docs: &mut BTreeMap<String, Vec<(String, String)>>, )

Trait Implementations

impl Clone for MetaDeveloperConfig

fn clone(&self) -> MetaDeveloperConfig

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MetaDeveloperConfig

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

Formats the value using the given formatter.

impl Default for MetaDeveloperConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetaDeveloperConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MetaDeveloperConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.