diff --git a/source/dnode/mnode/impl/src/mndStream.c b/source/dnode/mnode/impl/src/mndStream.c
index d864326ed0..24f757ebe6 100644
--- a/source/dnode/mnode/impl/src/mndStream.c
+++ b/source/dnode/mnode/impl/src/mndStream.c
@@ -2443,6 +2443,8 @@ static int32_t refreshNodeListFromExistedStreams(SMnode *pMnode, SArray *pNodeLi
   void       *pIter = NULL;
   int32_t     code = 0;
 
+  mDebug("start to refresh node list by existed streams");
+
   SHashObj *pHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
   if (pHash == NULL) {
     return TSDB_CODE_OUT_OF_MEMORY;