diff --git a/tests/integration/defs/conftest.py b/tests/integration/defs/conftest.py
index 561d9bf3272..e5f4a4b0f64 100644
--- a/tests/integration/defs/conftest.py
+++ b/tests/integration/defs/conftest.py
@@ -2362,6 +2362,7 @@ def pytest_configure(config):
     tqdm.tqdm.monitor_interval = 0
     if config.getoption("--run-ray"):
         os.environ["TLLM_DISABLE_MPI"] = "1"
+        os.environ["TLLM_RAY_FORCE_LOCAL_CLUSTER"] = "1"
 
     # Initialize PeriodicJUnitXML reporter if enabled
     periodic = config.getoption("--periodic-junit", default=False)
diff --git a/tests/integration/defs/disaggregated/test_disaggregated_single_gpu.py b/tests/integration/defs/disaggregated/test_disaggregated_single_gpu.py
index d6b63d3ab3c..434b1ef88a2 100644
--- a/tests/integration/defs/disaggregated/test_disaggregated_single_gpu.py
+++ b/tests/integration/defs/disaggregated/test_disaggregated_single_gpu.py
@@ -5,7 +5,7 @@
 
 import cloudpickle
 import pytest
-from defs.conftest import skip_no_hopper
+from defs.conftest import skip_no_hopper, skip_ray
 from mpi4py import MPI
 from mpi4py.futures import MPIPoolExecutor
 
@@ -244,6 +244,7 @@ def verify_disaggregated(model, generation_overlap, enable_cuda_graph, prompt,
             print("All workers terminated.")
 
 
+@skip_ray
 @pytest.mark.parametrize("model", ["TinyLlama-1.1B-Chat-v1.0"])
 @pytest.mark.parametrize("generation_overlap", [False, True])
 @pytest.mark.parametrize("enable_cuda_graph", [False, True])
@@ -259,6 +260,7 @@ def test_disaggregated_simple_llama(model, generation_overlap,
         ])
 
 
+@skip_ray
 @skip_no_hopper
 @pytest.mark.parametrize("model", ["DeepSeek-V3-Lite-fp8/fp8"])
 @pytest.mark.parametrize("generation_overlap", [False, True])
@@ -276,6 +278,7 @@ def test_disaggregated_simple_deepseek(model, generation_overlap,
         ])
 
 
+@skip_ray
 @skip_no_hopper
 @pytest.mark.parametrize("model", ["Qwen3-8B-FP8"])
 @pytest.mark.parametrize("generation_overlap", [False, True])
diff --git a/tests/integration/defs/test_unittests.py b/tests/integration/defs/test_unittests.py
index 190ea5111e2..d2cd80692cf 100644
--- a/tests/integration/defs/test_unittests.py
+++ b/tests/integration/defs/test_unittests.py
@@ -77,6 +77,7 @@ def test_unittests_v2(llm_root, llm_venv, case: str, output_dir, request):
         test_prefix = "unittest"
 
     waives_file = request.config.getoption("--waives-file")
+    run_ray = request.config.getoption("--run-ray")
 
     num_workers = 1
 
@@ -138,6 +139,9 @@ def test_unittests_v2(llm_root, llm_venv, case: str, output_dir, request):
         waives_file = os.path.abspath(waives_file)
         command += [f"--waives-file={waives_file}"]
 
+    if run_ray:
+        command += ["--run-ray"]
+
     command += arg_list
 
     print(f"Running unit test:\"python {' '.join(command)}\"")