diff --git a/source/client/inc/clientSml.h b/source/client/inc/clientSml.h
index 15d91641a4..311260e3fb 100644
--- a/source/client/inc/clientSml.h
+++ b/source/client/inc/clientSml.h
@@ -184,6 +184,7 @@ typedef struct {
   SSmlLineInfo      *lines; // element is SSmlLineInfo
   bool               parseJsonByLib;
   SArray      *tagJsonArray;
+  SArray      *valueJsonArray;
 
   //
   SArray      *preLineTagKV;
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index f25456999b..e21fcd64b8 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -1072,6 +1072,12 @@ void smlDestroyInfo(SSmlHandle *info) {
   }
   taosArrayDestroy(info->tagJsonArray);
 
+  for (int i = 0; i < taosArrayGetSize(info->valueJsonArray); i++) {
+    cJSON *value = (cJSON *)taosArrayGetP(info->valueJsonArray, i);
+    cJSON_Delete(value);
+  }
+  taosArrayDestroy(info->valueJsonArray);
+
   taosArrayDestroy(info->preLineTagKV);
   taosArrayDestroy(info->maxTagKVs);
   taosArrayDestroy(info->preLineColKV);
@@ -1111,6 +1117,7 @@ SSmlHandle *smlBuildSmlInfo(TAOS *taos) {
   info->dataFormat = true;
 
   info->tagJsonArray = taosArrayInit(8, POINTER_BYTES);
+  info->valueJsonArray = taosArrayInit(8, POINTER_BYTES);
   info->preLineTagKV = taosArrayInit(8, sizeof(SSmlKv));
   info->maxTagKVs = taosArrayInit(8, sizeof(SSmlKv));
   info->preLineColKV = taosArrayInit(8, sizeof(SSmlKv));
diff --git a/source/client/src/clientSmlJson.c b/source/client/src/clientSmlJson.c
index 080ce4568f..8b97e8dc22 100644
--- a/source/client/src/clientSmlJson.c
+++ b/source/client/src/clientSmlJson.c
@@ -1155,15 +1155,18 @@ static int32_t smlParseJSONString(SSmlHandle *info, char **start, SSmlLineInfo *
     char tmp = elements->cols[elements->colsLen];
     elements->cols[elements->colsLen] = '\0';
     cJSON* valueJson = cJSON_Parse(elements->cols);
+    if (unlikely(valueJson == NULL)) {
+      uError("SML:0x%" PRIx64 " parse json cols failed:%s", info->id, elements->cols);
+      return TSDB_CODE_TSC_INVALID_JSON;
+    }
+    taosArrayPush(info->tagJsonArray, &valueJson);
     ret = smlParseValueFromJSONObj(valueJson, &kv);
     if (ret != TSDB_CODE_SUCCESS) {
       uError("SML:Failed to parse value from JSON Obj:%s", elements->cols);
       elements->cols[elements->colsLen] = tmp;
-      cJSON_Delete(valueJson);
       return TSDB_CODE_TSC_INVALID_VALUE;
     }
     elements->cols[elements->colsLen] = tmp;
-    cJSON_Delete(valueJson);
   }else if(smlParseValue(&kv, &info->msgBuf) != TSDB_CODE_SUCCESS){
     uError("SML:cols invalidate:%s", elements->cols);
     return TSDB_CODE_TSC_INVALID_VALUE;
@@ -1176,7 +1179,7 @@ static int32_t smlParseJSONString(SSmlHandle *info, char **start, SSmlLineInfo *
     cJSON* tagsJson = cJSON_Parse(elements->tags);
     *(elements->tags + elements->tagsLen) = tmp;
     if (unlikely(tagsJson == NULL)) {
-      uError("SML:0x%" PRIx64 " parse json failed:%s", info->id, elements->tags);
+      uError("SML:0x%" PRIx64 " parse json tag failed:%s", info->id, elements->tags);
       return TSDB_CODE_TSC_INVALID_JSON;
     }
 
diff --git a/tests/pytest/util/dnodes.py b/tests/pytest/util/dnodes.py
index 6c71c5cea7..a1682f47b3 100644
--- a/tests/pytest/util/dnodes.py
+++ b/tests/pytest/util/dnodes.py
@@ -29,6 +29,7 @@ class TDSimClient:
         self.testCluster = False
         self.path = path
         self.cfgDict = {
+            "fqdn": "localhost",
             "numOfLogLines": "100000000",
             "locale": "en_US.UTF-8",
             "charset": "UTF-8",
@@ -119,6 +120,7 @@ class TDDnode:
         self.asan = False
         self.remoteIP = ""
         self.cfgDict = {
+            "fqdn": "localhost",
             "monitor": "0",
             "maxShellConns": "30000",
             "locale": "en_US.UTF-8",