diff --git a/omniadvisor/config/common_config.cfg b/omniadvisor/config/common_config.cfg
index 53f7206a8ddedf8ff965c15d65d2abd9dea07413..240e42c4e6674aea6ee10987e57b1f500a934bb6 100755
--- a/omniadvisor/config/common_config.cfg
+++ b/omniadvisor/config/common_config.cfg
@@ -10,8 +10,8 @@ tuning.strategy=[["transfer", 1],["expert", 2],["iterative", 10]]
 # Spark History Server的URL 仅用于Rest模式
 spark.history.rest.url=http://localhost:18080
 # Spark从History Sever抓取Trace的超时时间
-spark.fetch.trace.timeout=10
+spark.fetch.trace.timeout=30
 # Spark从History Sever抓取Trace的间隔用时
-spark.fetch.trace.interval=2
+spark.fetch.trace.interval=5
 # Spark任务执行的超时时间，对比基线的比例
 spark.exec.timeout.ratio=10.0
\ No newline at end of file
diff --git a/omniadvisor/src/tuning.py b/omniadvisor/src/tuning.py
index 37e8b395422549896cb4dbd4294f173ebdb9422e..a75f590572f1bf98f3a5c278b07b4b4e4bc2760a 100644
--- a/omniadvisor/src/tuning.py
+++ b/omniadvisor/src/tuning.py
@@ -1,14 +1,22 @@
 from common.constant import check_oa_conf
-from omniadvisor.interface import config_tuning
+from omniadvisor.interface.config_tuning import (
+    main,
+    NoOptimalConfigError
+)
 from omniadvisor.utils.logger import global_logger
 
 
 if __name__ == '__main__':
     try:
         check_oa_conf()
-        config_tuning.main()
+        main()
     # 无需进行逻辑处理的异常，直接抛至该层
     # 若需进行逻辑处理（如环境清理等），则需在相应位置处理后重新抛至该层
+    except NoOptimalConfigError as e:
+        # 若未找到优化配置，则通过warning打印即可
+        global_logger.warning(e)
+        # 正常退出
+        exit(0)
     except Exception as e:
         # 异常信息统一在此处打印，方便定位，抛出异常的地方无需打印log
         global_logger.error(e)
diff --git a/omniadvisor/tests/omniadvisor/service/spark_service/test_spark_cmd_parser.py b/omniadvisor/tests/omniadvisor/service/spark_service/test_spark_cmd_parser.py
index 92cbc080ad03b2cb7dc408b99adfeb4167b6c7db..2b12bb210ec839a58cfacb55329ec3c461ce02ae 100644
--- a/omniadvisor/tests/omniadvisor/service/spark_service/test_spark_cmd_parser.py
+++ b/omniadvisor/tests/omniadvisor/service/spark_service/test_spark_cmd_parser.py
@@ -91,13 +91,13 @@ class TestSparkCMDParser:
         cmd = SparkCMDParser.reconstruct_cmd(exec_attr, conf_params)
 
         assert cmd.startswith(exec_attr['omniadvisor-cmd-prefix'])
-        assert '--master yarn' in cmd
-        assert '--name test_app' in cmd
-        assert '-e "SELECT * FROM table"' in cmd
-        assert '--unknown1 test' in cmd
-        assert '-uk test' in cmd
-        assert '--conf spark.executor.memory=4g' in cmd
-        assert '--conf spark.driver.extraJavaOptions="-XX:+UseG1GC -XX:+UseG1GC"' in cmd
+        assert "--master 'yarn'" in cmd
+        assert "--name 'test_app'" in cmd
+        assert "-e 'SELECT * FROM table'" in cmd
+        assert "'--unknown1' 'test'" in cmd
+        assert "'-uk' 'test'" in cmd
+        assert "--conf spark.executor.memory='4g'" in cmd
+        assert "--conf spark.driver.extraJavaOptions='-XX:+UseG1GC -XX:+UseG1GC'" in cmd
 
     # 场景 2: 缺少前缀字段抛异常
     def test_reconstruct_cmd_missing_prefix(self):
@@ -123,7 +123,7 @@ class TestSparkCMDParser:
 
         assert "--extra" in cmd
         assert "arg" in cmd
-        assert "--conf spark.executor.instances=4" in cmd
+        assert "--conf spark.executor.instances='4'" in cmd
 
     # 场景 3: 包含 boolean 参数
     def test_reconstruct_cmd_with_boolean(self):
@@ -143,7 +143,7 @@ class TestSparkCMDParser:
 
         assert "--extra" in cmd
         assert "arg" in cmd
-        assert "--conf spark.executor.instances=4" in cmd
+        assert "--conf spark.executor.instances='4'" in cmd
         assert "verbose" in cmd
         assert "supervise" in cmd
         assert "kill" in cmd