pub struct CompactOptions { /* private fields */ }Implementations§
Source§impl CompactOptions
impl CompactOptions
Sourcepub fn set_exclusive_manual_compaction(&mut self, v: bool)
pub fn set_exclusive_manual_compaction(&mut self, v: bool)
If more than one thread calls manual compaction, only one will actually schedule it while the other threads will simply wait for the scheduled manual compaction to complete. If exclusive_manual_compaction is set to true, the call will disable scheduling of automatic compaction jobs and wait for existing automatic compaction jobs to finish.
Sourcepub fn set_bottommost_level_compaction(
&mut self,
lvl: BottommostLevelCompaction,
)
pub fn set_bottommost_level_compaction( &mut self, lvl: BottommostLevelCompaction, )
Sets bottommost level compaction.
Sourcepub fn set_change_level(&mut self, v: bool)
pub fn set_change_level(&mut self, v: bool)
If true, compacted files will be moved to the minimum level capable of holding the data or given level (specified non-negative target_level).
Sourcepub fn set_target_level(&mut self, lvl: c_int)
pub fn set_target_level(&mut self, lvl: c_int)
If change_level is true and target_level have non-negative value, compacted files will be moved to target_level.
Sourcepub fn set_full_history_ts_low<S: Into<Vec<u8>>>(&mut self, ts: S)
pub fn set_full_history_ts_low<S: Into<Vec<u8>>>(&mut self, ts: S)
Set user-defined timestamp low bound, the data with older timestamp than low bound maybe GCed by compaction. Default: nullptr
Sourcepub fn set_blob_garbage_collection_age_cutoff(&mut self, v: c_double)
pub fn set_blob_garbage_collection_age_cutoff(&mut self, v: c_double)
Override CompactRangeOptions::blob_garbage_collection_age_cutoff for a
single manual compaction.
If set to < 0 or > 1, RocksDB leaves the
blob_garbage_collection_age_cutoff from ColumnFamilyOptions in
effect (this is the default, -1). Otherwise, it overrides the
user-provided setting for the duration of this compaction. This
enables callers to selectively override the age cutoff per
compact_range call.
See Options::set_blob_gc_age_cutoff for the CF-level setter that
this value overrides.
Sourcepub fn get_blob_garbage_collection_age_cutoff(&self) -> f64
pub fn get_blob_garbage_collection_age_cutoff(&self) -> f64
If set to < 0 or > 1, RocksDB leaves blob_garbage_collection_age_cutoff from ColumnFamilyOptions in effect. Otherwise, it will override the user-provided setting. This enables customers to selectively override the age cutoff.
Sourcepub fn set_blob_garbage_collection_policy(&mut self, val: c_int)
pub fn set_blob_garbage_collection_policy(&mut self, val: c_int)
If set to kForce, RocksDB will override enable_blob_file_garbage_collection to true; if set to kDisable, RocksDB will override it to false, and kUseDefault leaves the setting in effect. This enables customers to both force-enable and force-disable GC when calling CompactRange.
Sourcepub fn get_blob_garbage_collection_policy(&self) -> c_int
pub fn get_blob_garbage_collection_policy(&self) -> c_int
Returns the value of the blob_garbage_collection_policy option.
Sourcepub fn get_allow_write_stall(&self) -> bool
pub fn get_allow_write_stall(&self) -> bool
Returns the current allow_write_stall setting.
See Self::set_allow_write_stall for what this controls.
Sourcepub fn get_bottommost_level_compaction(&self) -> bool
pub fn get_bottommost_level_compaction(&self) -> bool
Returns the current bottommost_level_compaction setting.
See Self::set_bottommost_level_compaction for what this controls.
Sourcepub fn get_change_level(&self) -> bool
pub fn get_change_level(&self) -> bool
Returns the current change_level setting.
See Self::set_change_level for what this controls.
Sourcepub fn get_exclusive_manual_compaction(&self) -> bool
pub fn get_exclusive_manual_compaction(&self) -> bool
Returns the current exclusive_manual_compaction setting.
See Self::set_exclusive_manual_compaction for what this controls.
Sourcepub fn get_max_subcompactions(&self) -> c_int
pub fn get_max_subcompactions(&self) -> c_int
Returns the current max_subcompactions setting.
See Self::set_max_subcompactions for what this controls.
Sourcepub fn get_target_level(&self) -> c_int
pub fn get_target_level(&self) -> c_int
Returns the current target_level setting.
See Self::set_target_level for what this controls.
Sourcepub fn get_target_path_id(&self) -> c_int
pub fn get_target_path_id(&self) -> c_int
Returns the current target_path_id setting.
See Self::set_target_path_id for what this controls.
Sourcepub fn set_allow_write_stall(&mut self, val: bool)
pub fn set_allow_write_stall(&mut self, val: bool)
If true, the flush would proceed immediately even it means writes will stall for the duration of the flush; if false the operation will wait until it’s possible to do flush w/o causing stall or until required flush is performed by someone else (foreground call or background thread). Default: false.
Sourcepub fn set_max_subcompactions(&mut self, val: c_int)
pub fn set_max_subcompactions(&mut self, val: c_int)
This value represents the maximum number of threads that will concurrently perform a compaction job by breaking it into multiple, smaller ones that are run simultaneously. Default: 1 (i.e. no subcompactions)
Dynamically changeable through SetDBOptions() API.
Sourcepub fn set_target_path_id(&mut self, val: c_int)
pub fn set_target_path_id(&mut self, val: c_int)
Compaction outputs will be placed in options.db_paths[target_path_id]. Behavior is undefined if target_path_id is out of range.