diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index f2493f6c57..bf060db5e2 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -151,13 +151,14 @@ typedef struct {
 typedef struct {
   SRequestObj     *request;
   tsem_t           sem;
+  int32_t          cnt;
+  int32_t          total;
   TdThreadSpinlock lock;
 } Params;
 
 typedef struct {
   int64_t id;
   Params *params;
-  bool    isLast;
 
   SMLProtocolType protocol;
   int8_t          precision;
@@ -2449,28 +2450,26 @@ static void smlInsertCallback(void *param, void *res, int32_t code) {
   int32_t rows = taos_affected_rows(pRequest);
 
   uDebug("SML:0x%" PRIx64 " result. code:%d, msg:%s", info->id, pRequest->code, pRequest->msgBuf);
-  // lock
-  taosThreadSpinLock(&info->params->lock);
-  if (code != TSDB_CODE_SUCCESS) {
-    info->params->request->code = code;
-    info->params->request->body.resInfo.numOfRows += rows;
-  }else{
-    info->params->request->body.resInfo.numOfRows += info->affectedRows;
-  }
-  taosThreadSpinUnlock(&info->params->lock);
-  // unlock
-
-  uDebug("SML:0x%" PRIx64 " insert finished, code: %d, rows: %d, total: %d", info->id, code, rows, info->affectedRows);
   Params *pParam = info->params;
-  bool    isLast = info->isLast;
+  // lock
+  taosThreadSpinLock(&pParam->lock);
+  pParam->cnt++;
+  if (code != TSDB_CODE_SUCCESS) {
+    pParam->request->code = code;
+    pParam->request->body.resInfo.numOfRows += rows;
+  }else{
+    pParam->request->body.resInfo.numOfRows += info->affectedRows;
+  }
+  if (pParam->cnt == pParam->total) {
+    tsem_post(&pParam->sem);
+  }
+  taosThreadSpinUnlock(&pParam->lock);
+  // unlock
+  uDebug("SML:0x%" PRIx64 " insert finished, code: %d, rows: %d, total: %d", info->id, code, rows, info->affectedRows);
   info->cost.endTime = taosGetTimestampUs();
   info->cost.code = code;
   smlPrintStatisticInfo(info);
   smlDestroyInfo(info);
-
-  if (isLast) {
-    tsem_post(&pParam->sem);
-  }
 }
 
 /**
@@ -2512,7 +2511,7 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
   pTscObj->schemalessType = 1;
   SSmlMsgBuf msg = {ERROR_MSG_BUF_DEFAULT_SIZE, request->msgBuf};
 
-  Params params;
+  Params params = {0};
   params.request = request;
   tsem_init(&params.sem, 0, 0);
   taosThreadSpinInit(&(params.lock), 0);
@@ -2557,6 +2556,7 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
   }
 
   batchs = ceil(((double)numLines) / LINE_BATCH);
+  params.total = batchs;
   for (int i = 0; i < batchs; ++i) {
     SRequestObj* req = (SRequestObj*)createRequest(pTscObj->id, TSDB_SQL_INSERT);
     if(!req){
@@ -2575,11 +2575,9 @@ TAOS_RES* taos_schemaless_insert(TAOS* taos, char* lines[], int numLines, int pr
 
     if (numLines > perBatch) {
       numLines -= perBatch;
-      info->isLast = false;
     } else {
       perBatch = numLines;
       numLines = 0;
-      info->isLast = true;
     }
 
     info->params = &params;