Struct KeyValueDiskANNMaintenance 

pub struct KeyValueDiskANNMaintenance { /* private fields */ }

Discover only generations visible at startup, without loading artifact payloads or building an identity directory. Each step checks one current generation and deletes at most 64 payload keys. New and earlier generations are reconsidered by the next pass. Errors preserve the current cursor and original physical attempt.

Implementations

impl KeyValueDiskANNMaintenance

pub fn start( store: &Arc<dyn KeyValueStore>, control: &StorageReadControl, ) -> StorageBackendResult<Self>

pub fn step(&mut self) -> StorageBackendResult<Option<DiskANNMaintenanceStep>>

None completes this finite pass and releases its discovery snapshot. Retained generations do not prevent reaching later generations; incomplete deletion stays on its current generation.

pub fn commit_pending(&self) -> StorageBackendResult<()>

Resolve the exact original attempt before resuming a failed step. No discovery or deletion callback is replayed by this operation.

pub fn rollback_pending(&self) -> StorageBackendResult<()>

pub fn run( store: &Arc<dyn KeyValueStore>, control: &StorageReadControl, ) -> StorageBackendResult<()>

Drain one finite pass for an existing storage-maintenance invocation. Every step keeps the same per-batch bound; dropping the pass releases discovery history before ordinary provider version reclamation.