[#826] blobovniczatree: Do not create DB's on init

Blobovniczas will be created on write requests.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

pkg/local_object_storage/blobstor/blobovniczatree/control.go

@@ -82,27 +82,29 @@ func (b *Blobovniczas) initializeDBs(ctx context.Context) error {
 		return err
 	}
 
-	err = b.iterateSortedLeaves(egCtx, nil, func(p string) (bool, error) {
-		if _, found := visited[p]; found {
-			return false, nil
-		}
-		eg.Go(func() error {
-			shBlz := b.getBlobovniczaWithoutCaching(p)
-			_, err := shBlz.Open()
-			if err != nil {
-				return err
+	if b.createDBInAdvance {
+		err = b.iterateSortedLeaves(egCtx, nil, func(p string) (bool, error) {
+			if _, found := visited[p]; found {
+				return false, nil
 			}
-			defer shBlz.Close()
+			eg.Go(func() error {
+				shBlz := b.getBlobovniczaWithoutCaching(p)
+				_, err := shBlz.Open()
+				if err != nil {
+					return err
+				}
+				defer shBlz.Close()
 
-			b.log.Debug(logs.BlobovniczatreeBlobovniczaSuccessfullyInitializedClosing, zap.String("id", p))
-			return nil
+				b.log.Debug(logs.BlobovniczatreeBlobovniczaSuccessfullyInitializedClosing, zap.String("id", p))
+				return nil
+			})
+			return false, nil
 		})
-		return false, nil
-	})
 
-	if err != nil {
-		_ = eg.Wait()
-		return err
+		if err != nil {
+			_ = eg.Wait()
+			return err
+		}
 	}
 
 	return eg.Wait()