Struct LSMConfig 

pub struct LSMConfig {
    pub memtable_size_limit: usize,
    pub level0_compaction_threshold: usize,
    pub bloom_bits_per_key: usize,
    pub sstable_cache_size: Option<usize>,
    pub sstable_cache_memory_limit_mb: Option<usize>,
    pub block_size: Option<usize>,
    pub enable_compression: Option<bool>,
    pub compression_algorithm: Option<CompressionAlgorithm>,
    pub tombstone_ttl_secs: Option<u64>,
}

LSM 树配置

Fields

memtable_size_limit: usize

MemTable 大小限制（字节）

level0_compaction_threshold: usize

Level 0 SSTable 数量阈值（触发合并）

bloom_bits_per_key: usize

Bloom filter bits per key (higher = less false positives, more memory)

sstable_cache_size: Option<usize>

SSTable cache entry count (None = storage default 128)

sstable_cache_memory_limit_mb: Option<usize>

SSTable cache memory limit in MB (None = storage default 200MB)

block_size: Option<usize>

SSTable block size in bytes (None = storage default 64KB)

enable_compression: Option<bool>

Enable SSTable block compression (None = storage default: true)

compression_algorithm: Option<CompressionAlgorithm>

Compression algorithm for SSTable blocks (None = storage default: Zstd)

tombstone_ttl_secs: Option<u64>

Tombstone TTL in seconds: deleted entries older than this are physically dropped during compaction. 0 = drop all tombstones immediately. None = use internal default (86400 = 24h).

Trait Implementations

impl Clone for LSMConfig

fn clone(&self) -> LSMConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LSMConfig

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

Formats the value using the given formatter.

impl Default for LSMConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LSMConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for LSMConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.