diff --git a/ci/test/2node_op_test_multi_client.sh b/ci/test/2node_op_test_multi_client.sh
index 33efe6c8ce3..148ae2fe374 100755
--- a/ci/test/2node_op_test_multi_client.sh
+++ b/ci/test/2node_op_test_multi_client.sh
@@ -17,7 +17,7 @@ cd ${test_tmp_dir}/$(basename $test_dir)
 
 for device_num in 1 2 4
 do
-    ONEFLOW_TEST_NODE_NUM=2 ONEFLOW_TEST_DEVICE_NUM=$device_num python3 -m oneflow.distributed.launch --nproc_per_node $device_num --nnodes=2 --node_rank=$NODE_RANK --master_addr 192.168.1.12 -m unittest discover ${PWD} --failfast --verbose
+    ONEFLOW_TEST_NODE_NUM=2 ONEFLOW_TEST_DEVICE_NUM=$device_num python3 -m oneflow.distributed.launch --nproc_per_node $device_num --nnodes=2 --node_rank=$NODE_RANK --master_addr $_MASTER_ADDR -m unittest discover ${PWD} --failfast --verbose
     # use a invalid ibverbs lib to test if falling back to epoll works
-    ONEFLOW_TEST_NODE_NUM=2 ONEFLOW_TEST_DEVICE_NUM=$device_num ONEFLOW_LIBIBVERBS_PATH=invalid_lib python3 -m oneflow.distributed.launch --nproc_per_node $device_num --nnodes=2 --node_rank=$NODE_RANK --master_addr 192.168.1.12 -m unittest discover ${PWD} --failfast --verbose
+    ONEFLOW_TEST_NODE_NUM=2 ONEFLOW_TEST_DEVICE_NUM=$device_num ONEFLOW_LIBIBVERBS_PATH=invalid_lib python3 -m oneflow.distributed.launch --nproc_per_node $device_num --nnodes=2 --node_rank=$NODE_RANK --master_addr $_MASTER_ADDR -m unittest discover ${PWD} --failfast --verbose
 done
diff --git a/ci/test/distributed_run.py b/ci/test/distributed_run.py
index 4002befd658..55e97d9edde 100644
--- a/ci/test/distributed_run.py
+++ b/ci/test/distributed_run.py
@@ -60,13 +60,13 @@ def find_free_port():
         return s.getsockname()[1]
 
 
-async def spawn_shell_and_check(cmd: str = None):
+async def spawn_shell(cmd: str = None):
     p = await asyncio.create_subprocess_shell(cmd,)
     await p.wait()
     assert p.returncode == 0, cmd
 
 
-async def spawn_shell(cmd: str = None):
+async def spawn_shell_ignoring_failure(cmd: str = None):
     p = await asyncio.create_subprocess_shell(cmd,)
     await p.wait()
 
@@ -74,34 +74,32 @@ async def spawn_shell(cmd: str = None):
 async def build_docker_img(remote_host=None, workspace_dir=None):
     if remote_host:
         assert workspace_dir
-        await spawn_shell_and_check("rm -f > oneflow-src.zip")
-        await spawn_shell_and_check("git archive --format zip HEAD > oneflow-src.zip")
-        await spawn_shell_and_check(
+        await spawn_shell("rm -f > oneflow-src.zip")
+        await spawn_shell("git archive --format zip HEAD > oneflow-src.zip")
+        await spawn_shell(
             f"scp oneflow-src.zip {remote_host}:{workspace_dir}/oneflow-src.zip",
         )
-        await spawn_shell_and_check(
+        await spawn_shell(
             f"ssh  {remote_host} unzip {workspace_dir}/oneflow-src.zip -d {workspace_dir}/oneflow-src",
         )
-        await spawn_shell_and_check(
+        await spawn_shell(
             f"ssh  {remote_host} bash {workspace_dir}/oneflow-src/docker/ci/test/build.sh",
         )
     else:
-        await spawn_shell_and_check(f"bash docker/ci/test/build.sh")
+        await spawn_shell(f"bash docker/ci/test/build.sh")
 
 
 async def create_remote_workspace_dir(
     remote_host=None, workspace_dir=None, copy_files=None
 ):
-    await spawn_shell_and_check(f"ssh {remote_host} mkdir -p {workspace_dir}")
+    await spawn_shell(f"ssh {remote_host} mkdir -p {workspace_dir}")
     if copy_files is not None:
         for path in copy_files:
             # Reference: https://stackoverflow.com/a/31278462
             if os.path.isdir(path) and path[-1] != "/":
                 path += "/"
-            await spawn_shell_and_check(
-                f"ssh {remote_host} mkdir -p {workspace_dir}/{path}"
-            )
-            await spawn_shell_and_check(
+            await spawn_shell(f"ssh {remote_host} mkdir -p {workspace_dir}/{path}")
+            await spawn_shell(
                 f"rsync -azPq --omit-dir-times --no-perms --no-group --copy-links --exclude='__pycache__' {path} {remote_host}:{workspace_dir}/{path}"
             )
     print("create_remote_workspace_dir done")
@@ -126,9 +124,17 @@ async def launch_remote_container(
     oneflow_python_path=None,
     cmd=None,
     node_rank=None,
+    master_addr=None,
 ):
     print("launching remote container at", remote_host)
     assert img_tag
+    multi_client_args = [node_rank, master_addr]
+    multi_client_arg_has_value = [x is not None for x in multi_client_args]
+    if any(multi_client_arg_has_value):
+        assert all(multi_client_arg_has_value)
+        is_multi_client = True
+    else:
+        is_multi_client = False
     pythonpath_args = None
     if oneflow_wheel_path:
         pythonpath_args = ""
@@ -138,25 +144,28 @@ async def launch_remote_container(
         raise ValueError("must have oneflow_wheel_path or oneflow_python_path")
     docker_cmd = f"""docker run --privileged -d --network host --shm-size=8g --rm {get_docker_cache_args()} -v {workspace_dir}:{workspace_dir} -w {workspace_dir} -v /dataset:/dataset -v /model_zoo:/model_zoo --name {container_name} {pythonpath_args} {img_tag} sleep {survival_time}
 """
-    await spawn_shell_and_check(f"ssh {remote_host} {docker_cmd}")
+    await spawn_shell(f"ssh {remote_host} {docker_cmd}")
     if oneflow_wheel_path:
         whl_basename = os.path.basename(oneflow_wheel_path)
-        await spawn_shell_and_check(
+        await spawn_shell(
             f"ssh {remote_host} docker exec {container_name} python3 -m pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple"
         )
-        await spawn_shell_and_check(
+        await spawn_shell(
             f"ssh {remote_host} docker exec {container_name} python3 -m pip install {workspace_dir}/{whl_basename}"
         )
     await spawn_shell(
         f"ssh {remote_host} docker exec {container_name} python3 -m oneflow --doctor"
     )
     if cmd:
-        if node_rank is not None:
-            node_rank_args = f"--env NODE_RANK={node_rank}"
+        if is_multi_client:
+            multi_client_docker_args = (
+                # Use _MASTER_ADDR to avoid name conflict with OneFlow's built-in MASTER_ADDR
+                f"--env NODE_RANK={node_rank} --env _MASTER_ADDR={master_addr}"
+            )
         else:
-            node_rank_args = ""
+            multi_client_docker_args = ""
         await spawn_shell(
-            f"ssh {remote_host} docker exec {node_rank_args} {container_name} {cmd}"
+            f"ssh {remote_host} docker exec {multi_client_docker_args} {container_name} {cmd}"
         )
 
 
@@ -318,7 +327,7 @@ async def fix_and_sync_libs(oneflow_internal_path=None, remote_hosts=None):
     tmp_dir = tempfile.TemporaryDirectory()
     tmp_lib_dir = os.path.join(tmp_dir.name, "libs")
     os.mkdir(tmp_lib_dir)
-    await spawn_shell_and_check(
+    await spawn_shell(
         """ldd file | grep "=> /" | awk '{print $3}' | xargs -I '{}' cp -v '{}' destination""".replace(
             "file", oneflow_internal_path
         ).replace(
@@ -331,17 +340,15 @@ async def fix_and_sync_libs(oneflow_internal_path=None, remote_hosts=None):
         pathlib.Path(__file__).parent.absolute(), "excludelist"
     )
     excludelist = open(excludelist_path).read().split("\n")
-    await spawn_shell_and_check(f"cp {oneflow_internal_path} {tmp_dir.name}")
+    await spawn_shell(f"cp {oneflow_internal_path} {tmp_dir.name}")
 
     def handle_lib(lib):
         if lib in excludelist or "libpython" in lib:
             print("excluding", lib)
-            return spawn_shell_and_check(f"rm {tmp_lib_dir}/{lib}")
+            return spawn_shell(f"rm {tmp_lib_dir}/{lib}")
         else:
             print("keeping", lib)
-            return spawn_shell_and_check(
-                f"patchelf --set-rpath '$ORIGIN' {tmp_lib_dir}/{lib}"
-            )
+            return spawn_shell(f"patchelf --set-rpath '$ORIGIN' {tmp_lib_dir}/{lib}")
 
     await asyncio.gather(*(handle_lib(lib) for lib in libs))
 
@@ -349,15 +356,15 @@ def handle_lib(lib):
         tmp_dir.name, pathlib.Path(oneflow_internal_path).name
     )
     print("before fixing .so")
-    await spawn_shell_and_check(f"ldd {tmp_oneflow_internal_path}")
+    await spawn_shell(f"ldd {tmp_oneflow_internal_path}")
     print("fixing .so")
-    await spawn_shell_and_check(
+    await spawn_shell(
         f"patchelf --set-rpath '$ORIGIN/libs' {tmp_oneflow_internal_path}"
     )
 
     await asyncio.gather(
         *[
-            spawn_shell_and_check(
+            spawn_shell(
                 f"ssh {remote_host} 'mkdir -p {workspace_dir}/python/oneflow/libs'",
             )
             for remote_host in remote_hosts
@@ -366,7 +373,7 @@ def handle_lib(lib):
 
     async def copy_file(path=None, remote_host=None):
         relpath = os.path.relpath(path, tmp_dir.name)
-        await spawn_shell_and_check(
+        await spawn_shell(
             f"scp {path} {remote_host}:{workspace_dir}/python/oneflow/{relpath}",
         )
 
@@ -382,7 +389,7 @@ async def copy_file(path=None, remote_host=None):
             for remote_host in remote_hosts
             for f in files
         ],
-        spawn_shell_and_check(f"ldd {tmp_oneflow_internal_path}"),
+        spawn_shell(f"ldd {tmp_oneflow_internal_path}"),
     )
 
 
@@ -391,8 +398,11 @@ async def remove_containers_by_name(remote_hosts=None, container_name=None):
     assert container_name
     assert remote_hosts
     await asyncio.gather(
-        *[spawn_shell(f"ssh {remote_host} {rm_cmd}") for remote_host in remote_hosts],
-        spawn_shell(rm_cmd),
+        *[
+            spawn_shell_ignoring_failure(f"ssh {remote_host} {rm_cmd}")
+            for remote_host in remote_hosts
+        ],
+        spawn_shell_ignoring_failure(rm_cmd),
     )
 
 
@@ -504,9 +514,7 @@ def get_remote_hosts(args):
     loop.run_until_complete(
         asyncio.gather(
             *[
-                spawn_shell_and_check(
-                    f"ssh -o StrictHostKeyChecking=no {remote_host} true"
-                )
+                spawn_shell(f"ssh -o StrictHostKeyChecking=no {remote_host} true")
                 for remote_host in remote_hosts
             ],
         ),
@@ -545,7 +553,7 @@ def get_remote_hosts(args):
         loop.run_until_complete(
             asyncio.gather(
                 *[
-                    spawn_shell_and_check(
+                    spawn_shell(
                         f"rsync -azPq --omit-dir-times --no-perms --no-group --copy-links --include='*.py' --exclude='*.so' --exclude='__pycache__' --exclude='oneflow/include' --include='*/' --exclude='*' {args.oneflow_python_path} {remote_host}:{workspace_dir}"
                     )
                     for remote_host in remote_hosts
@@ -564,7 +572,7 @@ def get_remote_hosts(args):
         loop.run_until_complete(
             asyncio.gather(
                 *[
-                    spawn_shell_and_check(
+                    spawn_shell(
                         f"rsync -azPq --omit-dir-times --no-perms --no-group {oneflow_wheel_path} {remote_host}:{workspace_dir}"
                     )
                     for remote_host in remote_hosts
@@ -611,7 +619,7 @@ def exit_handler():
         loop.run_until_complete(
             asyncio.gather(
                 *[
-                    spawn_shell(
+                    spawn_shell_ignoring_failure(
                         f"ssh {remote_host} docker run --rm -v {workspace_dir}:/p -w /p busybox chmod -R 777 .",
                     )
                     for remote_host in remote_hosts
@@ -625,7 +633,7 @@ def exit_handler():
         loop.run_until_complete(
             asyncio.gather(
                 *[
-                    spawn_shell(
+                    spawn_shell_ignoring_failure(
                         f"rsync -azPq --omit-dir-times --no-perms --no-group --exclude='*.whl' --exclude='python' {extra_exclude_args} {remote_host}:{workspace_dir}/ {args.oneflow_test_tmp_dir}/{remote_host}"
                     )
                     for remote_host in remote_hosts
@@ -638,7 +646,9 @@ def exit_handler():
             loop.run_until_complete(
                 asyncio.gather(
                     *[
-                        spawn_shell(f"ssh {remote_host} rm -rf {workspace_dir}",)
+                        spawn_shell_ignoring_failure(
+                            f"ssh {remote_host} rm -rf {workspace_dir}",
+                        )
                         for remote_host in remote_hosts
                     ],
                 )
@@ -667,6 +677,7 @@ def exit_handler():
                         img_tag=img_tag,
                         cmd=args.cmd,
                         node_rank=node_rank,
+                        master_addr=this_host,
                     )
                     for node_rank, remote_host in enumerate(remote_hosts)
                 ],
diff --git a/python/oneflow/framework/env_util.py b/python/oneflow/framework/env_util.py
index e6d6d0f629b..fa5461f002f 100644
--- a/python/oneflow/framework/env_util.py
+++ b/python/oneflow/framework/env_util.py
@@ -337,10 +337,10 @@ def _FindFreePort():
 
 def HasAllMultiClientEnvVars():
     env_var_names = ["MASTER_ADDR", "MASTER_PORT", "WORLD_SIZE", "RANK", "LOCAL_RANK"]
-    has_all_env_vars = all([os.getenv(x) for x in env_var_names])
-    if not has_all_env_vars:
-        has_at_least_one_env_var = any([os.getenv(x) for x in env_var_names])
-        assert not has_at_least_one_env_var
+    env_var_values = [os.getenv(x) for x in env_var_names]
+    has_no_env_vars = not any(env_var_values)
+    has_all_env_vars = all(env_var_values)
+    assert has_no_env_vars or has_all_env_vars, list(zip(env_var_names, env_var_values))
     return has_all_env_vars