diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index 39090fbd2b9a386d28a695b23f81545c00151196..6013ac9939cbdf939b3b3788ad470f9d4a0f1d87 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -386,7 +386,7 @@ static int32_t applySchemaAction(TAOS* taos, SSchemaAction* action, SSmlLinesInf
           tscError("SML:0x%" PRIx64 " apply schema action. reset query cache. error: %s", info->id, taos_errstr(res2));
         }
         taos_free_result(res2);
-        taosMsleep(100);
+        taosMsleep(500);
       }
       break;
     }
@@ -411,7 +411,7 @@ static int32_t applySchemaAction(TAOS* taos, SSchemaAction* action, SSmlLinesInf
           tscError("SML:0x%" PRIx64 " apply schema action. reset query cache. error: %s", info->id, taos_errstr(res2));
         }
         taos_free_result(res2);
-        taosMsleep(100);
+        taosMsleep(500);
       }
       break;
     }
@@ -433,7 +433,7 @@ static int32_t applySchemaAction(TAOS* taos, SSchemaAction* action, SSmlLinesInf
           tscError("SML:0x%" PRIx64 " apply schema action. reset query cache. error: %s", info->id, taos_errstr(res2));
         }
         taos_free_result(res2);
-        taosMsleep(100);
+        taosMsleep(500);
       }
       break;
     }
@@ -455,7 +455,7 @@ static int32_t applySchemaAction(TAOS* taos, SSchemaAction* action, SSmlLinesInf
           tscError("SML:0x%" PRIx64 " apply schema action. reset query cache. error: %s", info->id, taos_errstr(res2));
         }
         taos_free_result(res2);
-        taosMsleep(100);
+        taosMsleep(500);
       }
       break;
     }
@@ -497,7 +497,7 @@ static int32_t applySchemaAction(TAOS* taos, SSchemaAction* action, SSmlLinesInf
           tscError("SML:0x%" PRIx64 " apply schema action. reset query cache. error: %s", info->id, taos_errstr(res2));
         }
         taos_free_result(res2);
-        taosMsleep(100);
+        taosMsleep(500);
       }
       break;
     }