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CompactionStatus

mito2::compaction::scheduler::state

Struct CompactionStatus 

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pub(super) struct CompactionStatus {
    pub(super) region_id: RegionId,
    pub(super) version_control: Arc<VersionControl>,
    pub(super) access_layer: AccessLayerRef,
    pub(super) active: ActiveCompaction,
    pub(super) pending_request: Option<PendingCompaction>,
    pub(super) pending_ddl_requests: Vec<SenderDdlRequest>,
}
Expand description

Status of running and pending region compaction tasks.

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§region_id: RegionId

Id of the region.

§version_control: Arc<VersionControl>

Version control of the region.

§access_layer: AccessLayerRef

Access layer of the region.

§active: ActiveCompaction

Current compaction lifecycle.

§pending_request: Option<PendingCompaction>

A manual compaction waiting for the current automatic compaction to finish.

A manual request is rejected if the current compaction is also manual. Automatic requests are merged into the active compaction instead of using this slot.

§pending_ddl_requests: Vec<SenderDdlRequest>

Pending DDL requests that should run when compaction is done.

Although SenderDdlRequest can wrap any DDL variant, production code only queues crate::request::DdlRequest::Truncate and crate::request::DdlRequest::EnterStaging here. Both must serialize with compaction so they observe the version after compaction terminates.

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impl CompactionStatus

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pub(super) fn new( region_id: RegionId, version_control: Arc<VersionControl>, access_layer: AccessLayerRef, plan_id: u64, trigger: CompactionTrigger, ) -> CompactionStatus

Creates a new picking CompactionStatus.

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pub(super) fn start_picking_with_trigger( &mut self, plan_id: u64, trigger: CompactionTrigger, )

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pub(super) fn start_regular_picking(&mut self, plan_id: u64)

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pub(super) fn is_picking(&self, expected_plan_id: u64) -> bool

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pub(super) fn accept_plan(&self, expected_plan_id: u64) -> bool

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pub(super) fn is_manual_compaction(&self) -> bool

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pub(super) fn matches_execution(&self, execution: &CompactionExecution) -> bool

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pub(super) fn request_cancel(&mut self) -> RequestCancelResult

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pub(super) fn mark_automatic_trigger(&mut self)

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pub(super) fn merge_waiter(&mut self, waiter: OptionOutputTx)

Merge the waiter to the pending compaction.

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pub(super) fn take_waiters(&mut self) -> Vec<OutputTx>

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pub(super) fn extend_waiters(&mut self, waiters: Vec<OutputTx>)

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pub(super) fn append_waiters(&mut self, waiters: &mut Vec<OutputTx>)

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pub(super) fn set_phase(&mut self, phase: CompactionPhase)

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pub(super) fn set_pending_request(&mut self, pending: PendingCompaction)

Sets a pending manual compaction request, replacing an older pending request.

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pub(super) fn on_failure(self, err: Arc<Error>)

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pub(super) fn on_cancel(self) -> Vec<SenderDdlRequest>

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pub(super) fn new_compaction_request( &self, request_sender: Sender<WorkerRequestWithTime>, engine_config: Arc<MitoConfig>, cache_manager: CacheManagerRef, manifest_ctx: &Arc<ManifestContext>, listener: WorkerListener, schema_metadata_manager: SchemaMetadataManagerRef, max_parallelism: usize, ) -> CompactionRequest

Creates an immutable request for background compaction planning.

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