[Bugfix] Gracefully handle huggingface hub http error (#12571)

vllm/transformers_utils/config.py

@@ -7,7 +7,8 @@ from typing import Any, Dict, Optional, Type, Union
 import huggingface_hub
 from huggingface_hub import (file_exists, hf_hub_download,
                              try_to_load_from_cache)
-from huggingface_hub.utils import (EntryNotFoundError, LocalEntryNotFoundError,
+from huggingface_hub.utils import (EntryNotFoundError, HfHubHTTPError,
+                                   LocalEntryNotFoundError,
                                    RepositoryNotFoundError,
                                    RevisionNotFoundError)
 from torch import nn
@@ -294,6 +295,13 @@ def get_hf_file_to_dict(file_name: str,
                 logger.debug("File or repository not found in hf_hub_download",
                              e)
                 return None
+            except HfHubHTTPError as e:
+                logger.warning(
+                    "Cannot connect to Hugging Face Hub. Skipping file "
+                    "download for '%s':",
+                    file_name,
+                    exc_info=e)
+                return None
             file_path = Path(hf_hub_file)
 
         with open(file_path) as file: