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google.api_core.exceptions.RetryError: Timeout of 60.0s exceeded, last exception: 503 DNS resolution failed for firestore.googleapis.com: C-ares status is not ARES_SUCCESS qtype=A name=firestore.googleapis.com is_balancer=0: DNS query cancelled #858

Open
@ChurikiTenna

Description

[REQUIRED] Step 2: Describe your environment

  • Operating System version: Mac OS
  • Firebase SDK version: 6.1.0
  • Firebase Product: firestore
  • Python version: 3.12.2
  • Pip version: 24.0 from /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/pip (python 3.12)

[REQUIRED] Step 3: Describe the problem

cred = credentials.Certificate("firebase-privateKey.json")
firebase_admin.initialize_app(cred) 
db = firestore.client()
collections = list(db.collections())
if collections:
 print("Collections found:", [col.id for col in collections])
else:
 print("No collections found or access denied.")

The code fails with error below.

Traceback (most recent call last):
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/grpc_helpers.py", line 76, in error_remapped_callable
 return callable_(*args, **kwargs)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/grpc/_channel.py", line 1181, in __call__
 return _end_unary_response_blocking(state, call, False, None)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/grpc/_channel.py", line 1006, in _end_unary_response_blocking
 raise _InactiveRpcError(state) # pytype: disable=not-instantiable
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
grpc._channel._InactiveRpcError: <_InactiveRpcError of RPC that terminated with:
 status = StatusCode.UNAVAILABLE
 details = "DNS resolution failed for firestore.googleapis.com: C-ares status is not ARES_SUCCESS qtype=SRV name=_grpclb._tcp.firestore.googleapis.com: DNS query cancelled"
 debug_error_string = "UNKNOWN:Error received from peer {grpc_message:"DNS resolution failed for firestore.googleapis.com: C-ares status is not ARES_SUCCESS qtype=SRV name=_grpclb._tcp.firestore.googleapis.com: DNS query cancelled", grpc_status:14, created_time:"2025-02-02T19:42:12.316149+09:00"}"
>
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/retry/retry_unary.py", line 144, in retry_target
 result = target()
 ^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/timeout.py", line 130, in func_with_timeout
 return func(*args, **kwargs)
 ^^^^^^^^^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/grpc_helpers.py", line 78, in error_remapped_callable
 raise exceptions.from_grpc_error(exc) from exc
google.api_core.exceptions.ServiceUnavailable: 503 DNS resolution failed for firestore.googleapis.com: C-ares status is not ARES_SUCCESS qtype=SRV name=_grpclb._tcp.firestore.googleapis.com: DNS query cancelled
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
 File "/Users/tenna/Desktop/tenna/art_sanpo/scraping/museum.py", line 24, in <module>
 collections = list(db.collections())
 ^^^^^^^^^^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/cloud/firestore_v1/client.py", line 279, in collections
 iterator = self._firestore_api.list_collection_ids(
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/cloud/firestore_v1/services/firestore/client.py", line 2057, in list_collection_ids
 response = rpc(
 ^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/gapic_v1/method.py", line 131, in __call__
 return wrapped_func(*args, **kwargs)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/retry/retry_unary.py", line 293, in retry_wrapped_func
 return retry_target(
 ^^^^^^^^^^^^^
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/retry/retry_unary.py", line 153, in retry_target
 _retry_error_helper(
 File "/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/google/api_core/retry/retry_base.py", line 221, in _retry_error_helper
 raise final_exc from source_exc
google.api_core.exceptions.RetryError: Timeout of 60.0s exceeded, last exception: 503 DNS resolution failed for firestore.googleapis.com: C-ares status is not ARES_SUCCESS qtype=SRV name=_grpclb._tcp.firestore.googleapis.com: DNS query cancelled

I am running the script once a month, and It was working fine until 2025年1月5日.
Suddenly stopped working yesterday (2025年2月1日).

I can confirm the reject exists at: https://console.firebase.google.com/u/0/project/art-sanpo/overview?hl=ja
And the Blaze plan is turned on, access rule is allow read: if true; for all of the collections.

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