From e90ac9c6f91fae2d4a1dd5051b99198053b3f223 Mon Sep 17 00:00:00 2001 From: Leonard Lyubich Date: Tue, 15 Feb 2022 09:51:43 +0300 Subject: [PATCH] [#1181] metabase: Remove unused CleanUp method Signed-off-by: Leonard Lyubich --- pkg/local_object_storage/metabase/cleanup.go | 108 ------------------- 1 file changed, 108 deletions(-) delete mode 100644 pkg/local_object_storage/metabase/cleanup.go diff --git a/pkg/local_object_storage/metabase/cleanup.go b/pkg/local_object_storage/metabase/cleanup.go deleted file mode 100644 index 3e485c74a..000000000 --- a/pkg/local_object_storage/metabase/cleanup.go +++ /dev/null @@ -1,108 +0,0 @@ -package meta - -import ( - "bytes" - "strings" - - "go.etcd.io/bbolt" -) - -// CleanUpPrm groups the parameters of CleanUp operation. -type CleanUpPrm struct{} - -// CleanUpRes groups resulting values of CleanUp operation. -type CleanUpRes struct{} - -// CleanUp removes empty buckets from metabase. -func (db *DB) CleanUp(prm *CleanUpPrm) (res *CleanUpRes, err error) { - err = db.boltDB.Update(func(tx *bbolt.Tx) error { - return tx.ForEach(func(name []byte, b *bbolt.Bucket) error { - switch { - case isFKBTBucket(name): - cleanUpFKBT(tx, name, b) - case isListBucket(name): - cleanUpListBucket(tx, name, b) - default: - cleanUpUniqueBucket(tx, name, b) - } - - return nil - }) - }) - - return -} - -func isFKBTBucket(name []byte) bool { - bucketName := string(name) - - switch { - case - strings.Contains(bucketName, userAttributePostfix), - strings.Contains(bucketName, ownerPostfix): - return true - default: - return false - } -} - -func isListBucket(name []byte) bool { - bucketName := string(name) - - switch { - case - strings.Contains(bucketName, payloadHashPostfix), - strings.Contains(bucketName, parentPostfix): - return true - default: - return false - } -} - -func cleanUpUniqueBucket(tx *bbolt.Tx, name []byte, b *bbolt.Bucket) { - switch { // clean well-known global metabase buckets - case bytes.Equal(name, containerVolumeBucketName): - _ = b.ForEach(func(k, v []byte) error { - if parseContainerSize(v) == 0 { - _ = b.Delete(k) - } - - return nil - }) - default: - // do nothing - } - - if b.Stats().KeyN == 0 { - _ = tx.DeleteBucket(name) // ignore error, best effort there - } -} - -func cleanUpFKBT(tx *bbolt.Tx, name []byte, b *bbolt.Bucket) { - removedBuckets := 0 - remainingBuckets := b.Stats().BucketN - 1 - - _ = b.ForEach(func(k, _ []byte) error { - fkbtRoot := b.Bucket(k) - if fkbtRoot == nil { - return nil - } - - if fkbtRoot.Stats().KeyN == 0 { - err := b.DeleteBucket(k) - if err == nil { - removedBuckets++ - } - } - - return nil - }) - - if remainingBuckets == removedBuckets { - _ = tx.DeleteBucket(name) // ignore error, best effort there - } -} - -func cleanUpListBucket(tx *bbolt.Tx, name []byte, b *bbolt.Bucket) { - cleanUpUniqueBucket(tx, name, b) -}