[#1944] metabase: Assume static buckets are created on `Init`

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>

CHANGELOG.md

@@ -25,6 +25,7 @@ Changelog for NeoFS Node
 - Inability to provide session to NeoFS CLI in a NeoFS-binary format (#1933)
 - `neofs-adm` now works correctly with a committee of more than 4 nodes (#1949, #1959)
 - Closing a shard now waits until GC background workers stop (#1964)
+- Make it possible to use `shard.ContainerSize` in read-only mode (#1975)
 
 ### Removed
 ### Updated

pkg/local_object_storage/metabase/containers.go

@@ -38,7 +38,7 @@ func (db *DB) containers(tx *bbolt.Tx) ([]cid.ID, error) {
 }
 
 func (db *DB) ContainerSize(id cid.ID) (size uint64, err error) {
-	err = db.boltDB.Update(func(tx *bbolt.Tx) error {
+	err = db.boltDB.View(func(tx *bbolt.Tx) error {
 		size, err = db.containerSize(tx, id)
 
 		return err
@@ -48,11 +48,7 @@ func (db *DB) ContainerSize(id cid.ID) (size uint64, err error) {
 }
 
 func (db *DB) containerSize(tx *bbolt.Tx, id cid.ID) (uint64, error) {
-	containerVolume, err := tx.CreateBucketIfNotExists(containerVolumeBucketName)
-	if err != nil {
-		return 0, err
-	}
-
+	containerVolume := tx.Bucket(containerVolumeBucketName)
 	key := make([]byte, cidSize)
 	id.Encode(key)
 
@@ -78,11 +74,7 @@ func parseContainerSize(v []byte) uint64 {
 }
 
 func changeContainerSize(tx *bbolt.Tx, id cid.ID, delta uint64, increase bool) error {
-	containerVolume, err := tx.CreateBucketIfNotExists(containerVolumeBucketName)
-	if err != nil {
-		return err
-	}
-
+	containerVolume := tx.Bucket(containerVolumeBucketName)
 	key := make([]byte, cidSize)
 	id.Encode(key)
 

pkg/local_object_storage/metabase/control.go

@@ -94,6 +94,7 @@ func (db *DB) init(reset bool) error {
 		string(toMoveItBucketName):        {},
 		string(garbageBucketName):         {},
 		string(shardInfoBucket):           {},
+		string(bucketNameLocked):          {},
 	}
 
 	return db.boltDB.Update(func(tx *bbolt.Tx) error {

pkg/local_object_storage/metabase/graveyard.go

@@ -164,10 +164,6 @@ func (db *DB) iterateDeletedObj(tx *bbolt.Tx, h kvHandler, offset *oid.Address)
 		panic(fmt.Sprintf("metabase: unknown iteration object hadler: %T", t))
 	}
 
-	if bkt == nil {
-		return nil
-	}
-
 	c := bkt.Cursor()
 	var k, v []byte
 

pkg/local_object_storage/metabase/iterators.go

@@ -125,9 +125,6 @@ func (db *DB) IterateCoveredByTombstones(tss map[string]oid.Address, h func(oid.
 
 func (db *DB) iterateCoveredByTombstones(tx *bbolt.Tx, tss map[string]oid.Address, h func(oid.Address) error) error {
 	bktGraveyard := tx.Bucket(graveyardBucketName)
-	if bktGraveyard == nil {
-		return nil
-	}
 
 	err := bktGraveyard.ForEach(func(k, v []byte) error {
 		var addr oid.Address

pkg/local_object_storage/metabase/lock.go

@@ -44,10 +44,7 @@ func (db *DB) Lock(cnr cid.ID, locker oid.ID, locked []oid.ID) error {
 			return apistatus.LockNonRegularObject{}
 		}
 
-		bucketLocked, err := tx.CreateBucketIfNotExists(bucketNameLocked)
-		if err != nil {
-			return fmt.Errorf("create global bucket for locked objects: %w", err)
-		}
+		bucketLocked := tx.Bucket(bucketNameLocked)
 
 		cnr.Encode(key)
 		bucketLockedContainer, err := bucketLocked.CreateBucketIfNotExists(key)

pkg/local_object_storage/metabase/movable.go

@@ -56,11 +56,7 @@ func (db *DB) ToMoveIt(prm ToMoveItPrm) (res ToMoveItRes, err error) {
 	key = addressKey(prm.addr, key)
 
 	err = db.boltDB.Update(func(tx *bbolt.Tx) error {
-		toMoveIt, err := tx.CreateBucketIfNotExists(toMoveItBucketName)
-		if err != nil {
-			return err
-		}
-
+		toMoveIt := tx.Bucket(toMoveItBucketName)
 		return toMoveIt.Put(key, zeroValue)
 	})
 
@@ -77,10 +73,6 @@ func (db *DB) DoNotMove(prm DoNotMovePrm) (res DoNotMoveRes, err error) {
 
 	err = db.boltDB.Update(func(tx *bbolt.Tx) error {
 		toMoveIt := tx.Bucket(toMoveItBucketName)
-		if toMoveIt == nil {
-			return nil
-		}
-
 		return toMoveIt.Delete(key)
 	})
 
@@ -96,10 +88,6 @@ func (db *DB) Movable(_ MovablePrm) (MovableRes, error) {
 
 	err := db.boltDB.View(func(tx *bbolt.Tx) error {
 		toMoveIt := tx.Bucket(toMoveItBucketName)
-		if toMoveIt == nil {
-			return nil
-		}
-
 		return toMoveIt.ForEach(func(k, v []byte) error {
 			strAddrs = append(strAddrs, string(k))