Struct TimeseriesToning 

pub struct TimeseriesToning {
    pub memtable_budget_bytes: usize,
    pub memtable_hard_limit_bytes: usize,
    pub max_tag_cardinality: u32,
    pub total_budget_bytes: usize,
    pub block_size: usize,
}

Timeseries engine tuning (memtable budgets, block sizes).

Fields

memtable_budget_bytes: usize

Soft memtable budget: reaching it schedules a flush at the next record boundary. Rows already in the memtable are never refused because of it.

memtable_hard_limit_bytes: usize

Hard memtable ceiling. Reaching it forces a flush BEFORE the next WAL record is ingested, never partway through one: by the time the Data Plane sees a record its WAL append has already committed, so the memtable must take the record whole or the write is silently lost. Consequently a single record can carry the memtable up to its own decoded size past this ceiling; see the admission gate in the timeseries ingest handler for the bound that costs.

max_tag_cardinality: u32

Maximum distinct values per symbol (tag / string) column in one memtable generation. Flushing resets the dictionaries, so this bounds dictionary size between flushes rather than over the collection’s life.

total_budget_bytes: usize

block_size: usize

Trait Implementations

impl Clone for TimeseriesToning

fn clone(&self) -> TimeseriesToning

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimeseriesToning

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

Formats the value using the given formatter.

impl Default for TimeseriesToning

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TimeseriesToning

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TimeseriesToning

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

where __S: Serializer,

Serialize this value into the given Serde serializer.