risingwave_pb::hummock

Type Alias PbCompactionConfig

source 
pub type PbCompactionConfig = CompactionConfig;
Expand description

Alias for CompactionConfig.

Aliased Type§

struct PbCompactionConfig {
Show 24 fields
    pub max_bytes_for_level_base: u64,
    pub max_level: u64,
    pub max_bytes_for_level_multiplier: u64,
    pub max_compaction_bytes: u64,
    pub sub_level_max_compaction_bytes: u64,
    pub level0_tier_compact_file_number: u64,
    pub compaction_mode: i32,
    pub compression_algorithm: Vec<String>,
    pub target_file_size_base: u64,
    pub compaction_filter_mask: u32,
    pub max_sub_compaction: u32,
    pub max_space_reclaim_bytes: u64,
    pub split_by_state_table: bool,
    pub split_weight_by_vnode: u32,
    pub level0_stop_write_threshold_sub_level_number: u64,
    pub level0_max_compact_file_number: u64,
    pub level0_sub_level_compact_level_count: u32,
    pub level0_overlapping_sub_level_compact_level_count: u32,
    pub tombstone_reclaim_ratio: u32,
    pub enable_emergency_picker: bool,
    pub max_l0_compact_level_count: Option<u32>,
    pub sst_allowed_trivial_move_min_size: Option<u64>,
    pub disable_auto_group_scheduling: Option<bool>,
    pub max_overlapping_level_size: Option<u64>,

}

Fields§

§max_bytes_for_level_base: u64§max_level: u64§max_bytes_for_level_multiplier: u64§max_compaction_bytes: u64§sub_level_max_compaction_bytes: u64§level0_tier_compact_file_number: u64§compaction_mode: i32§compression_algorithm: Vec<String>§target_file_size_base: u64§compaction_filter_mask: u32§max_sub_compaction: u32§max_space_reclaim_bytes: u64§split_by_state_table: bool§split_weight_by_vnode: u32

Compaction needs to cut the state table every time 1/weight of vnodes in the table have been processed.

§level0_stop_write_threshold_sub_level_number: u64

soft limit for max number of sub level number

§level0_max_compact_file_number: u64§level0_sub_level_compact_level_count: u32§level0_overlapping_sub_level_compact_level_count: u32

for tier compaction pick overlapping level

§tombstone_reclaim_ratio: u32§enable_emergency_picker: bool§max_l0_compact_level_count: Option<u32>

The limitation of the level count of l0 compaction

§sst_allowed_trivial_move_min_size: Option<u64>

The limitation of base level trivial move sst size

§disable_auto_group_scheduling: Option<bool>

The limitation of auto group scheduling

§max_overlapping_level_size: Option<u64>

The limitation of the max size of the overlapping-level for the compaction hummock will reorg the commit-sstables to the multi overlapping-level if the size of the commit-sstables is larger than max_overlapping_level_size