diff --git a/tests/python_client/chaos/scripts/hello_milvus.py b/tests/python_client/chaos/scripts/hello_milvus.py
index 0b8ef18301..1d74672f5b 100644
--- a/tests/python_client/chaos/scripts/hello_milvus.py
+++ b/tests/python_client/chaos/scripts/hello_milvus.py
@@ -74,9 +74,17 @@ def hello_milvus(host="127.0.0.1"):
     collection.create_index(field_name="float_vector", index_params=default_index)
     t1 = time.time()
     print(f"\nCreate index cost {t1 - t0:.4f} seconds")
+    print("\nGet replicas number")
+    try:
+        replicas_info = collection.get_replicas()
+        replica_number = len(replicas_info.groups)
+        print(f"\nReplicas number is {replica_number}")
+    except Exception as e:
+        print(str(e))
+        replica_number = 1
     print(f"\nload collection...")
     t0 = time.time()
-    collection.load()
+    collection.load(replica_number=replica_number)
     t1 = time.time()
     print(f"\nload collection cost {t1 - t0:.4f} seconds")
 
@@ -105,7 +113,6 @@ def hello_milvus(host="127.0.0.1"):
     sorted_res = sorted(res, key=lambda k: k['int64'])
     for r in sorted_res:
         print(r)
-    # collection.release()
 
 
 parser = argparse.ArgumentParser(description='host ip')
diff --git a/tests/python_client/chaos/scripts/verify_all_collections.py b/tests/python_client/chaos/scripts/verify_all_collections.py
index 1d3c125001..6895d99a95 100644
--- a/tests/python_client/chaos/scripts/verify_all_collections.py
+++ b/tests/python_client/chaos/scripts/verify_all_collections.py
@@ -69,9 +69,17 @@ def hello_milvus(collection_name):
     collection.create_index(field_name="float_vector", index_params=default_index)
     t1 = time.time()
     print(f"\nCreate index cost {t1 - t0:.4f} seconds")
+    print("\nGet replicas number")
+    try:
+        replicas_info = collection.get_replicas()
+        replica_number = len(replicas_info.groups)
+        print(f"\nReplicas number is {replica_number}")
+    except Exception as e:
+        print(str(e))
+        replica_number = 1
     print(f"\nload collection...")
     t0 = time.time()
-    collection.load()
+    collection.load(replica_number=replica_number)
     t1 = time.time()
     print(f"\nload collection cost {t1 - t0:.4f} seconds")
 
@@ -100,11 +108,10 @@ def hello_milvus(collection_name):
     sorted_res = sorted(res, key=lambda k: k['int64'])
     for r in sorted_res:
         print(r)
-    collection.release()
 
 
 parser = argparse.ArgumentParser(description='host ip')
-parser.add_argument('--host', type=str, default='10.96.77.209', help='host ip')
+parser.add_argument('--host', type=str, default='127.0.0.1', help='host ip')
 args = parser.parse_args()
 # add time stamp
 print(f"\nStart time: {time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))}")
diff --git a/tests/python_client/chaos/test_chaos_multi_replicas.py b/tests/python_client/chaos/test_chaos_multi_replicas.py
index eb5b89d391..47b0399e04 100644
--- a/tests/python_client/chaos/test_chaos_multi_replicas.py
+++ b/tests/python_client/chaos/test_chaos_multi_replicas.py
@@ -86,7 +86,7 @@ class TestChaos(TestChaosBase):
 
     @pytest.fixture(scope="function", autouse=True)
     def init_health_checkers(self):
-        c_name = cf.gen_unique_str('Checker_')
+        c_name = cf.gen_unique_str('MultiReplicasChecker_')
         replicas_num = 2
         shards_num = 2
         checkers = {