diff --git a/cmd/tools/migration/backend/etcd210.go b/cmd/tools/migration/backend/etcd210.go
index 137ad51d8db0e8af1ef3316592e138da60fbf238..7867bd2bd6dda3f68bc6ae0cb1025e5c7359f47e 100644
--- a/cmd/tools/migration/backend/etcd210.go
+++ b/cmd/tools/migration/backend/etcd210.go
@@ -464,12 +464,12 @@ func (b etcd210) BackupV2(file string) error {
 			return err
 		}
 		for _, kv := range resp.Kvs {
+			currentKey = string(append(kv.Key, 0))
 			if kv.Lease != 0 {
 				console.Warning(fmt.Sprintf("lease key won't be backuped: %s, lease id: %d", kv.Key, kv.Lease))
 				continue
 			}
 			saves[string(kv.Key)] = string(kv.Value)
-			currentKey = string(append(kv.Key, 0))
 		}
 	}
 
diff --git a/internal/proxy/error.go b/internal/proxy/error.go
index 47d4d0587714a7797e6889e43a08656064f0ecad..039218bc7c0957b277739d044a8db22f7bb93a4f 100644
--- a/internal/proxy/error.go
+++ b/internal/proxy/error.go
@@ -88,7 +88,7 @@ func ErrProxyNotReady() error {
 }
 
 func ErrPartitionNotExist(partitionName string) error {
-	return fmt.Errorf("partitionID of partitionName:%s can not be find", partitionName)
+	return fmt.Errorf("partition is not exist: %s", partitionName)
 }
 
 func ErrAmbiguousIndexName() error {