diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index 349ccb35acd52aa5e3ccd5882d03a596e3e064ec..f51d205c26df451a0d6db06cafb0c59fbcea2379 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -1151,7 +1151,7 @@ static void doInitGlobalConfig(void) {
   cfg.ptr = &tsHttpMaxThreads;
   cfg.valType = TAOS_CFG_VTYPE_INT32;
   cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG;
-  cfg.minValue = 1;
+  cfg.minValue = 2;
   cfg.maxValue = 1000000;
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
@@ -1523,6 +1523,13 @@ int32_t taosCheckGlobalCfg() {
     tsNumOfCores = 1;
   }
 
+  if (tsHttpMaxThreads == 2) {
+    int32_t halfNumOfCores = tsNumOfCores >> 1;
+    if (halfNumOfCores > 2) {
+      tsHttpMaxThreads = halfNumOfCores;
+    }
+  }
+
   if (tsMaxTablePerVnode < tsMinTablePerVnode) {
     uError("maxTablesPerVnode(%d) < minTablesPerVnode(%d), reset to minTablesPerVnode(%d)",
 	   tsMaxTablePerVnode, tsMinTablePerVnode, tsMinTablePerVnode);