diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 7947624451ff612c58a37ee46fb24a51699eefda..f19d17d03439c61f17d25f20076c353f67b39d8d 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -412,8 +412,7 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   tsNumOfVnodeQueryThreads = TMAX(tsNumOfVnodeQueryThreads, 2);
   if (cfgAddInt32(pCfg, "numOfVnodeQueryThreads", tsNumOfVnodeQueryThreads, 1, 1024, 0) != 0) return -1;
 
-  tsNumOfVnodeFetchThreads = tsNumOfCores / 4;
-  tsNumOfVnodeFetchThreads = TMAX(tsNumOfVnodeFetchThreads, 4);
+  tsNumOfVnodeFetchThreads = TRANGE(tsNumOfVnodeFetchThreads, 1, 1);
   if (cfgAddInt32(pCfg, "numOfVnodeFetchThreads", tsNumOfVnodeFetchThreads, 1, 1024, 0) != 0) return -1;
 
   tsNumOfVnodeWriteThreads = tsNumOfCores;