diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index ed91695569695d9d2acaa586d6f3ad32104017f4..786c612d612e3d683286f3ce3d0d302e0eb34f57 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -887,6 +887,16 @@ static void doInitGlobalConfig(void) {
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
   taosInitConfigOption(cfg);
 
+  cfg.option = "cachelast";
+  cfg.ptr = &tsCacheLastRow;
+  cfg.valType = TAOS_CFG_VTYPE_INT8;
+  cfg.cfgType = TSDB_CFG_CTYPE_B_CONFIG | TSDB_CFG_CTYPE_B_SHOW;
+  cfg.minValue = TSDB_MIN_DB_CACHE_LAST_ROW;
+  cfg.maxValue = TSDB_MAX_DB_CACHE_LAST_ROW;
+  cfg.ptrLength = 0;
+  cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
+
   cfg.option = "mqttHostName";
   cfg.ptr = tsMqttHostName;
   cfg.valType = TAOS_CFG_VTYPE_STRING;