diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index c0ed1feb6b7c0edce1a00cd2a78dd59f7e6d7ded..801d32a1ee311d1b7948e836d489acd1add0559a 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -898,7 +898,7 @@ static int32_t insertChildTableBatch(TAOS* taos,  char* cTableName, SArray* cols
       }
       taos_free_result(res2);
       if (tryAgain) {
-        taosMsleep(100 * (2 << (try)));
+        taosMsleep(50 * (2 << (try)));
       }
     }
   } while (tryAgain);