diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index 085b949cc102e3752abd41caacdf07985351e1db..0d43e101754e9ae3eb33440005790f238f6664a5 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -795,69 +795,69 @@ static int32_t arrangePointsByChildTableName(TAOS_SML_DATA_POINT* points, int nu
 static int32_t applyChildTableDataPointsWithInsertSQL(TAOS* taos, char* cTableName, char* sTableName, SSmlSTableSchema* sTableSchema,
                                                   SArray* cTablePoints, size_t rowSize, SSmlLinesInfo* info) {
   int32_t code = TSDB_CODE_SUCCESS;
-  size_t numTags = taosArrayGetSize(sTableSchema->tags);
-  size_t numCols = taosArrayGetSize(sTableSchema->fields);
-  size_t rows = taosArrayGetSize(cTablePoints);
+  size_t  numTags = taosArrayGetSize(sTableSchema->tags);
+  size_t  numCols = taosArrayGetSize(sTableSchema->fields);
+  size_t  rows = taosArrayGetSize(cTablePoints);
   SArray* tagsSchema = sTableSchema->tags;
   SArray* colsSchema = sTableSchema->fields;
 
   TAOS_SML_KV* tagKVs[TSDB_MAX_TAGS] = {0};
-  for (int i= 0; i < rows; ++i) {
-    TAOS_SML_DATA_POINT * pDataPoint = taosArrayGetP(cTablePoints, i);
+  for (int i = 0; i < rows; ++i) {
+    TAOS_SML_DATA_POINT* pDataPoint = taosArrayGetP(cTablePoints, i);
     for (int j = 0; j < pDataPoint->tagNum; ++j) {
       TAOS_SML_KV* kv = pDataPoint->tags + j;
       tagKVs[kv->fieldSchemaIdx] = kv;
     }
   }
 
-  char* sql = malloc(tsMaxSQLStringLen+1);
+  char* sql = malloc(tsMaxSQLStringLen + 1);
   if (sql == NULL) {
     tscError("malloc sql memory error");
     return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
 
-  int32_t freeBytes = tsMaxSQLStringLen + 1 ;
+  int32_t freeBytes = tsMaxSQLStringLen + 1;
   int32_t totalLen = 0;
   totalLen += sprintf(sql, "insert into %s using %s (", cTableName, sTableName);
   for (int i = 0; i < numTags; ++i) {
     SSchema* tagSchema = taosArrayGet(tagsSchema, i);
-    totalLen += snprintf(sql+totalLen, freeBytes-totalLen, "%s,", tagSchema->name);
+    totalLen += snprintf(sql + totalLen, freeBytes - totalLen, "%s,", tagSchema->name);
   }
   --totalLen;
-  totalLen += snprintf(sql + totalLen, freeBytes-totalLen, ")");
+  totalLen += snprintf(sql + totalLen, freeBytes - totalLen, ")");
 
-  totalLen += snprintf(sql + totalLen, freeBytes-totalLen, " tags (");
+  totalLen += snprintf(sql + totalLen, freeBytes - totalLen, " tags (");
 
-//  for (int i = 0; i < numTags; ++i) {
-//    snprintf(sql+strlen(sql), freeBytes-strlen(sql), "?,");
-//  }
+  //  for (int i = 0; i < numTags; ++i) {
+  //    snprintf(sql+strlen(sql), freeBytes-strlen(sql), "?,");
+  //  }
   for (int i = 0; i < numTags; ++i) {
     if (tagKVs[i] == NULL) {
-      totalLen += snprintf(sql + totalLen, freeBytes-totalLen, "NULL,");
+      totalLen += snprintf(sql + totalLen, freeBytes - totalLen, "NULL,");
     } else {
-      TAOS_SML_KV* kv =  tagKVs[i];
-      size_t beforeLen = totalLen;
-      int32_t len = 0;
-      converToStr(sql+beforeLen, kv->type, kv->value, kv->length, &len);
+      TAOS_SML_KV* kv = tagKVs[i];
+      size_t       beforeLen = totalLen;
+      int32_t      len = 0;
+      converToStr(sql + beforeLen, kv->type, kv->value, kv->length, &len);
       totalLen += len;
-      totalLen += snprintf(sql+totalLen, freeBytes-totalLen, ",");
+      totalLen += snprintf(sql + totalLen, freeBytes - totalLen, ",");
     }
   }
   --totalLen;
-  totalLen += snprintf(sql + totalLen, freeBytes-totalLen, ") (");
+  totalLen += snprintf(sql + totalLen, freeBytes - totalLen, ") (");
 
   for (int i = 0; i < numCols; ++i) {
     SSchema* colSchema = taosArrayGet(colsSchema, i);
-    totalLen += snprintf(sql+totalLen, freeBytes-totalLen, "%s,", colSchema->name);
+    totalLen += snprintf(sql + totalLen, freeBytes - totalLen, "%s,", colSchema->name);
   }
   --totalLen;
-  totalLen += snprintf(sql + totalLen, freeBytes-totalLen, ") values ");
+  totalLen += snprintf(sql + totalLen, freeBytes - totalLen, ") values ");
 
-  TAOS_SML_KV** colKVs = malloc(numCols*sizeof(TAOS_SML_KV*));
+  TAOS_SML_KV** colKVs = malloc(numCols * sizeof(TAOS_SML_KV*));
   for (int r = 0; r < rows; ++r) {
-    totalLen += snprintf(sql + totalLen, freeBytes-totalLen, "(");
+    totalLen += snprintf(sql + totalLen, freeBytes - totalLen, "(");
 
-    memset(colKVs, 0, numCols*sizeof(TAOS_SML_KV*));
+    memset(colKVs, 0, numCols * sizeof(TAOS_SML_KV*));
 
     TAOS_SML_DATA_POINT* point = taosArrayGetP(cTablePoints, r);
     for (int i = 0; i < point->fieldNum; ++i) {
@@ -867,28 +867,68 @@ static int32_t applyChildTableDataPointsWithInsertSQL(TAOS* taos, char* cTableNa
 
     for (int i = 0; i < numCols; ++i) {
       if (colKVs[i] == NULL) {
-        totalLen += snprintf(sql + totalLen, freeBytes-totalLen, "NULL,");
+        totalLen += snprintf(sql + totalLen, freeBytes - totalLen, "NULL,");
       } else {
-        TAOS_SML_KV* kv =  colKVs[i];
-        size_t beforeLen = totalLen;
-        int32_t len = 0;
-        converToStr(sql+beforeLen, kv->type, kv->value, kv->length, &len);
+        TAOS_SML_KV* kv = colKVs[i];
+        size_t       beforeLen = totalLen;
+        int32_t      len = 0;
+        converToStr(sql + beforeLen, kv->type, kv->value, kv->length, &len);
         totalLen += len;
-        totalLen += snprintf(sql+totalLen, freeBytes-totalLen, ",");
+        totalLen += snprintf(sql + totalLen, freeBytes - totalLen, ",");
       }
     }
     --totalLen;
-    totalLen += snprintf(sql+totalLen, freeBytes - totalLen, ")");
+    totalLen += snprintf(sql + totalLen, freeBytes - totalLen, ")");
   }
   free(colKVs);
   sql[totalLen] = '\0';
 
-  tscDebug("SML:0x%"PRIx64" insert child table table %s of super table %s sql: %s", info->id, cTableName, sTableName, sql);
-  TAOS_RES* res = taos_query(taos, sql);
+  tscDebug("SML:0x%" PRIx64 " insert child table table %s of super table %s sql: %s", info->id, cTableName, sTableName,
+           sql);
+
+  bool tryAgain = false;
+  int32_t try = 0;
+  do {
+    TAOS_RES* res = taos_query(taos, sql);
+    code = taos_errno(res);
+    if (code != 0) {
+      tscError("SML:0x%"PRIx64 " taos_query return %d:%s", info->id, code, taos_errstr(res));
+    }
+
+    tscDebug("SML:0x%"PRIx64 " taos_query inserted %d rows", info->id, taos_affected_rows(res));
+    info->affectedRows += taos_affected_rows(res);
+    taos_free_result(res);
+
+    tryAgain = false;
+    if ((code == TSDB_CODE_TDB_INVALID_TABLE_ID
+         || code == TSDB_CODE_VND_INVALID_VGROUP_ID
+         || code == TSDB_CODE_TDB_TABLE_RECONFIGURE
+         || code == TSDB_CODE_APP_NOT_READY
+         || code == TSDB_CODE_RPC_NETWORK_UNAVAIL) && try++ < TSDB_MAX_REPLICA) {
+      tryAgain = true;
+    }
+
+    if (code == TSDB_CODE_TDB_INVALID_TABLE_ID || code == TSDB_CODE_VND_INVALID_VGROUP_ID) {
+      TAOS_RES* res2 = taos_query(taos, "RESET QUERY CACHE");
+      int32_t   code2 = taos_errno(res2);
+      if (code2 != TSDB_CODE_SUCCESS) {
+        tscError("SML:0x%" PRIx64 " insert child table by sql. reset query cache. error: %s", info->id, taos_errstr(res2));
+      }
+      taos_free_result(res2);
+      if (tryAgain) {
+        taosMsleep(100 * (2 << try));
+      }
+    }
+
+    if (code == TSDB_CODE_APP_NOT_READY || code == TSDB_CODE_RPC_NETWORK_UNAVAIL) {
+      if (tryAgain) {
+        taosMsleep( 100 * (2 << try));
+      }
+    }
+  } while (tryAgain);
+
   free(sql);
-  code = taos_errno(res);
-  info->affectedRows += taos_affected_rows(res);
-  taos_free_result(res);
+
   return code;
 }