diff --git a/dfget/core/uploader/peer_server_test.go b/dfget/core/uploader/peer_server_test.go
index f5f2f6f16..b07308ca8 100644
--- a/dfget/core/uploader/peer_server_test.go
+++ b/dfget/core/uploader/peer_server_test.go
@@ -53,9 +53,8 @@ var (
 )
 
 type PeerServerTestSuite struct {
-	workHome    string
-	servicePath string
-	srv         *peerServer
+	workHome string
+	srv      *peerServer
 }
 
 func (s *PeerServerTestSuite) SetUpSuite(c *check.C) {
diff --git a/dfget/core/uploader/uploader_helper_test.go b/dfget/core/uploader/uploader_helper_test.go
index f45b08d67..5684d934f 100644
--- a/dfget/core/uploader/uploader_helper_test.go
+++ b/dfget/core/uploader/uploader_helper_test.go
@@ -126,18 +126,6 @@ func (u uploadHeader) newRange(rangeStr string) uploadHeader {
 	return newU
 }
 
-func (u uploadHeader) newNum(num int) uploadHeader {
-	newU := u
-	newU.num = fmt.Sprintf("%d", num)
-	return newU
-}
-
-func (u uploadHeader) newSize(size int) uploadHeader {
-	newU := u
-	newU.size = fmt.Sprintf("%d", size)
-	return newU
-}
-
 // ----------------------------------------------------------------------------
 // upload param
 
diff --git a/dfget/core/uploader/uploader_util_test.go b/dfget/core/uploader/uploader_util_test.go
index f30a1a9be..8e448b059 100644
--- a/dfget/core/uploader/uploader_util_test.go
+++ b/dfget/core/uploader/uploader_util_test.go
@@ -36,7 +36,6 @@ func init() {
 
 type UploaderUtilTestSuite struct {
 	workHome string
-	host     string
 	ip       string
 	port     int
 	server   *http.Server
diff --git a/supernode/daemon/mgr/progress/state_sync_map.go b/supernode/daemon/mgr/progress/state_sync_map.go
index cde3a47fe..78583f7bf 100644
--- a/supernode/daemon/mgr/progress/state_sync_map.go
+++ b/supernode/daemon/mgr/progress/state_sync_map.go
@@ -102,20 +102,6 @@ func (mmap *stateSyncMap) getAsPieceState(key string) (*pieceState, error) {
 	return nil, errors.Wrapf(errortypes.ErrConvertFailed, "key %s: %v", key, v)
 }
 
-// getAsSuperLoadState returns result as *superLoadState.
-// The ErrConvertFailed error will be returned if the assertion fails.
-func (mmap *stateSyncMap) getAsSuperLoadState(key string) (*superLoadState, error) {
-	v, err := mmap.get(key)
-	if err != nil {
-		return nil, errors.Wrapf(err, "key: %s", key)
-	}
-
-	if value, ok := v.(*superLoadState); ok {
-		return value, nil
-	}
-	return nil, errors.Wrapf(errortypes.ErrConvertFailed, "key %s: %v", key, v)
-}
-
 // remove deletes the key-value pair from the mmap.
 // The ErrEmptyValue error will be returned if the key is empty.
 // And the ErrDataNotFound error will be returned if the key cannot be found.