Struct fjall::KvSeparationOptions

pub struct KvSeparationOptions { /* private fields */ }

Configuration options for key-value-separated partitions.

Implementations

impl KvSeparationOptions

pub fn file_target_size(self, bytes: u64) -> Self

Sets the target size of blob files.

Smaller blob files allow more granular garbage collection which allows lower space amp for lower write I/O cost.

Larger blob files decrease the number of files on disk and thus maintenance overhead.

Defaults to 64 MiB.

pub fn separation_threshold(self, bytes: u32) -> Self

Sets the key-value separation threshold in bytes.

Smaller value will reduce compaction overhead and thus write amplification, at the cost of lower read performance.

Defaults to 4KiB.

Trait Implementations

impl Clone for KvSeparationOptions

fn clone(&self) -> KvSeparationOptions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for KvSeparationOptions

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

Formats the value using the given formatter.

impl Decode for KvSeparationOptions

fn decode_from<R: Read>(reader: &mut R) -> Result<Self, DecodeError>

where Self: Sized,

Deserializes from reader.

impl Default for KvSeparationOptions

fn default() -> Self

Returns the “default value” for a type.

impl Encode for KvSeparationOptions

fn encode_into<W: Write>(&self, writer: &mut W) -> Result<(), EncodeError>

Serializes into writer.

fn encode_into_vec(&self) -> Result<Vec<u8>, EncodeError>

Serializes into vector.