4 files changed, 10 insertions, 10 deletions
diff --git a/object/store/mix/bytes.go b/object/store/mix/bytes.go
index 2b4d3819..e76d16a9 100644
--- a/object/store/mix/bytes.go
+++ b/object/store/mix/bytes.go
@@ -45,8 +45,8 @@ func (mix *Mix) ReadBytesContent(id id.ObjectID) (typ.Type, []byte, error) {
 			continue
 		}
 
-		return typ.TypeUnknown, nil, fmt.Errorf("object/store/mix: read bytes content: %w", err)
+		return typ.Unknown, nil, fmt.Errorf("object/store/mix: read bytes content: %w", err)
 	}
 
-	return typ.TypeUnknown, nil, store.ErrObjectNotFound
+	return typ.Unknown, nil, store.ErrObjectNotFound
 }
diff --git a/object/store/mix/header.go b/object/store/mix/header.go
index 13dda9af..aefa2907 100644
--- a/object/store/mix/header.go
+++ b/object/store/mix/header.go
@@ -11,7 +11,7 @@ import (
 
 // ReadHeader reads object header data
 // from the most-recently-used backend that has it.
-func (mix *Mix) ReadHeader(id id.ObjectID) (typ.Type, uint64, error) {
+func (mix *Mix) ReadHeader(id id.ObjectID) (typ.Type, int, error) {
 	for _, backend := range mix.order.Keys() {
 		ty, size, err := backend.ReadHeader(id)
 		if err == nil {
@@ -24,15 +24,15 @@ func (mix *Mix) ReadHeader(id id.ObjectID) (typ.Type, uint64, error) {
 			continue
 		}
 
-		return typ.TypeUnknown, 0, fmt.Errorf("object/store/mix: read header: %w", err)
+		return typ.Unknown, 0, fmt.Errorf("object/store/mix: read header: %w", err)
 	}
 
-	return typ.TypeUnknown, 0, store.ErrObjectNotFound
+	return typ.Unknown, 0, store.ErrObjectNotFound
 }
 
 // ReadSize reads object content length
 // from the most-recently-used backend that has it.
-func (mix *Mix) ReadSize(id id.ObjectID) (uint64, error) {
+func (mix *Mix) ReadSize(id id.ObjectID) (int, error) {
 	for _, backend := range mix.order.Keys() {
 		size, err := backend.ReadSize(id)
 		if err == nil {
diff --git a/object/store/mix/mix.go b/object/store/mix/mix.go
index 2e8e926b..b048fe86 100644
--- a/object/store/mix/mix.go
+++ b/object/store/mix/mix.go
@@ -28,7 +28,7 @@ func New(backends ...store.ObjectReader) *Mix {
 		present[backend] = struct{}{}
 	}
 
-	order := mru.New[store.ObjectReader]()
+	order := mru.New[store.ObjectReader](mru.Options{Interval: 48})
 	order.Sync(present)
 
 	return &Mix{
diff --git a/object/store/mix/reader.go b/object/store/mix/reader.go
index f9edc1a4..46a3aedf 100644
--- a/object/store/mix/reader.go
+++ b/object/store/mix/reader.go
@@ -33,7 +33,7 @@ func (mix *Mix) ReadReaderFull(id id.ObjectID) (io.ReadCloser, error) {
 
 // ReadReaderContent reads an object's type, declared content length,
 // and content stream from the most-recently-used backend that has it.
-func (mix *Mix) ReadReaderContent(id id.ObjectID) (typ.Type, uint64, io.ReadCloser, error) {
+func (mix *Mix) ReadReaderContent(id id.ObjectID) (typ.Type, int, io.ReadCloser, error) {
 	for _, backend := range mix.order.Keys() {
 		ty, size, reader, err := backend.ReadReaderContent(id)
 		if err == nil {
@@ -46,8 +46,8 @@ func (mix *Mix) ReadReaderContent(id id.ObjectID) (typ.Type, uint64, io.ReadClos
 			continue
 		}
 
-		return typ.TypeUnknown, 0, nil, fmt.Errorf("object/store/mix: read reader content: %w", err)
+		return typ.Unknown, 0, nil, fmt.Errorf("object/store/mix: read reader content: %w", err)
 	}
 
-	return typ.TypeUnknown, 0, nil, store.ErrObjectNotFound
+	return typ.Unknown, 0, nil, store.ErrObjectNotFound
 }