diff --git a/qinling/orchestrator/kubernetes/manager.py b/qinling/orchestrator/kubernetes/manager.py
index f37adfbe..baf3a780 100644
--- a/qinling/orchestrator/kubernetes/manager.py
+++ b/qinling/orchestrator/kubernetes/manager.py
@@ -18,7 +18,6 @@ import os
 import time
 
 import jinja2
-from kubernetes.client import V1DeleteOptions
 from oslo_log import log as logging
 import requests
 import tenacity
@@ -149,7 +148,8 @@ class KubernetesManager(base.OrchestratorBase):
 
         self.v1extension.create_namespaced_deployment(
             body=yaml.safe_load(deployment_body),
-            namespace=self.conf.kubernetes.namespace
+            namespace=self.conf.kubernetes.namespace,
+            async_req=False
         )
 
         self._wait_deployment_available(name)
@@ -176,8 +176,7 @@ class KubernetesManager(base.OrchestratorBase):
         for svc_name in names:
             self.v1.delete_namespaced_service(
                 svc_name,
-                self.conf.kubernetes.namespace,
-                V1DeleteOptions(),
+                self.conf.kubernetes.namespace
             )
         LOG.info("Services in deployment %s deleted.", name)
 
@@ -521,8 +520,7 @@ class KubernetesManager(base.OrchestratorBase):
 
                 self.v1.delete_namespaced_pod(
                     identifier,
-                    self.conf.kubernetes.namespace,
-                    {}
+                    self.conf.kubernetes.namespace
                 )
                 LOG.debug('Pod %s deleted.', identifier)
 
@@ -560,8 +558,7 @@ class KubernetesManager(base.OrchestratorBase):
         for svc_name in names:
             self.v1.delete_namespaced_service(
                 svc_name,
-                self.conf.kubernetes.namespace,
-                V1DeleteOptions(),
+                self.conf.kubernetes.namespace
             )
 
         self.v1.delete_collection_namespaced_pod(
@@ -592,5 +589,4 @@ class KubernetesManager(base.OrchestratorBase):
         self.v1.delete_namespaced_pod(
             pod_name,
             self.conf.kubernetes.namespace,
-            {}
         )
diff --git a/qinling/tests/unit/orchestrator/kubernetes/test_manager.py b/qinling/tests/unit/orchestrator/kubernetes/test_manager.py
index a984a834..1398e834 100644
--- a/qinling/tests/unit/orchestrator/kubernetes/test_manager.py
+++ b/qinling/tests/unit/orchestrator/kubernetes/test_manager.py
@@ -158,7 +158,8 @@ class TestKubernetesManager(base.DbTestCase):
         )
         self.k8s_v1_ext.create_namespaced_deployment.assert_called_once_with(
             body=yaml.safe_load(deployment_body),
-            namespace=self.fake_namespace)
+            namespace=self.fake_namespace,
+            async_req=False)
         self.k8s_v1_ext.read_namespaced_deployment.assert_called_once_with(
             fake_deployment_name, self.fake_namespace)
 
@@ -219,8 +220,8 @@ class TestKubernetesManager(base.DbTestCase):
             self.fake_namespace,
             label_selector='runtime_id=%s' % fake_deployment_name)
         delete_service_calls = [
-            mock.call(svc1_name, self.fake_namespace, mock.ANY),
-            mock.call(svc2_name, self.fake_namespace, mock.ANY),
+            mock.call(svc1_name, self.fake_namespace),
+            mock.call(svc2_name, self.fake_namespace),
         ]
         self.k8s_v1_api.delete_namespaced_service.assert_has_calls(
             delete_service_calls)
@@ -742,8 +743,8 @@ class TestKubernetesManager(base.DbTestCase):
         )
 
         delete_service_calls = [
-            mock.call(svc1_name, self.fake_namespace, mock.ANY),
-            mock.call(svc2_name, self.fake_namespace, mock.ANY)
+            mock.call(svc1_name, self.fake_namespace),
+            mock.call(svc2_name, self.fake_namespace)
         ]
         self.k8s_v1_api.delete_namespaced_service.assert_has_calls(
             delete_service_calls)
@@ -920,4 +921,5 @@ class TestKubernetesManager(base.DbTestCase):
         self.manager.delete_worker(pod_name)
 
         self.k8s_v1_api.delete_namespaced_pod.assert_called_once_with(
-            pod_name, self.fake_namespace, {})
+            pod_name, self.fake_namespace
+        )
diff --git a/qinling_tempest_plugin/tests/base.py b/qinling_tempest_plugin/tests/base.py
index 46326bc2..9d566c28 100644
--- a/qinling_tempest_plugin/tests/base.py
+++ b/qinling_tempest_plugin/tests/base.py
@@ -66,7 +66,7 @@ class BaseQinlingTest(test.BaseTestCase):
 
     @tenacity.retry(
         wait=tenacity.wait_fixed(3),
-        stop=tenacity.stop_after_attempt(10),
+        stop=tenacity.stop_after_attempt(20),
         retry=tenacity.retry_if_exception_type(AssertionError)
     )
     def wait_runtime_available(self, id):