Revert "Fix failed ha tests."

This reverts commit f35a165.

python/ray/_private/node.py

@@ -98,7 +98,7 @@ def __init__(
  ray_params.external_addresses = external_redis
  ray_params.num_redis_shards = len(external_redis) - 1
  storage_namespace = os.environ.get("RAY_external_storage_namespace")
- if head and storage_namespace is None:
+ if storage_namespace is None:
  raise ValueError(
  "RAY_external_storage_namespace must be provided "
  "when using Ray with external Redis for the fault tolerance. "
@@ -963,6 +963,11 @@ def _wait_and_get_for_node_address(self, timeout_s: int = 60) -> str:
  The node_ip_address of the current session if it finds it
  within timeout_s.
  """
+ # logger.error(f"Read file from {self.get_session_dir_path()}")
+ path = Path(self.get_session_dir_path())
+ file_names = [f.name for f in path.iterdir() if f.is_file()]
+ # logger.error(file_names)
+
  for i in range(timeout_s):
  node_ip_address = self._get_cached_node_ip_address()