vatsrahul1001 opened a new issue, #55470:
URL: https://github.com/apache/airflow/issues/55470
### Apache Airflow version
main (development)
### If "Other Airflow 2 version" selected, which one?
_No response_
### What happened?
Getting error in API server logs while I clicked on task in deferred state
in UI
```
INFO: 192.168.97.1:57238 - "GET
/api/v2/dags/each_two_wait_one_async/dagRuns/manual__2025-09-10T16%3A13%3A15.237946%2B00%3A00/taskInstances/wait_exec_plus_one/-1
HTTP/1.1" 200 OK
2025-09-10T16:13:42.135569Z [error ] Could not read served logs
[airflow.utils.log.file_task_handler]
Traceback (most recent call last):
File "/usr/python/lib/python3.10/site-packages/urllib3/connection.py",
line 198, in _new_conn
sock = connection.create_connection(
File
"/usr/python/lib/python3.10/site-packages/urllib3/util/connection.py", line 85,
in create_connection
raise err
File
"/usr/python/lib/python3.10/site-packages/urllib3/util/connection.py", line 73,
in create_connection
sock.connect(sa)
ConnectionRefusedError: [Errno 111] Connection refused
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/python/lib/python3.10/site-packages/urllib3/connectionpool.py",
line 787, in urlopen
response = self._make_request(
File "/usr/python/lib/python3.10/site-packages/urllib3/connectionpool.py",
line 493, in _make_request
conn.request(
File "/usr/python/lib/python3.10/site-packages/urllib3/connection.py",
line 494, in request
self.endheaders()
File "/usr/python/lib/python3.10/http/client.py", line 1278, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/python/lib/python3.10/http/client.py", line 1038, in
_send_output
self.send(msg)
File "/usr/python/lib/python3.10/http/client.py", line 976, in send
self.connect()
File "/usr/python/lib/python3.10/site-packages/urllib3/connection.py",
line 325, in connect
self.sock = self._new_conn()
File "/usr/python/lib/python3.10/site-packages/urllib3/connection.py",
line 213, in _new_conn
raise NewConnectionError(
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection
object at 0xffff5f742200>: Failed to establish a new connection: [Errno 111]
Connection refused
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/python/lib/python3.10/site-packages/requests/adapters.py", line
644, in send
resp = conn.urlopen(
File "/usr/python/lib/python3.10/site-packages/urllib3/connectionpool.py",
line 841, in urlopen
retries = retries.increment(
File "/usr/python/lib/python3.10/site-packages/urllib3/util/retry.py",
line 519, in increment
raise MaxRetryError(_pool, url, reason) from reason # type:
ignore[arg-type]
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='8e79b3d36f33',
port=8794): Max retries exceeded with url:
/log/dag_id=each_two_wait_one_async/run_id=manual__2025-09-10T16:13:15.237946+00:00/task_id=wait_exec_plus_one/attempt=1.log.trigger.3.log
(Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at
0xffff5f742200>: Failed to establish a new connection: [Errno 111] Connection
refused'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File
"/opt/airflow/airflow-core/src/airflow/utils/log/file_task_handler.py", line
876, in _read_from_logs_server
response = _fetch_logs_from_service(url, rel_path)
File
"/opt/airflow/airflow-core/src/airflow/utils/log/file_task_handler.py", line
185, in _fetch_logs_from_service
response = requests.get(
File "/usr/python/lib/python3.10/site-packages/requests/api.py", line 73,
in get
return request("get", url, params=params, **kwargs)
File "/usr/python/lib/python3.10/site-packages/requests/api.py", line 59,
in request
return session.request(method=method, url=url, **kwargs)
File "/usr/python/lib/python3.10/site-packages/requests/sessions.py", line
589, in request
resp = self.send(prep, **send_kwargs)
File "/usr/python/lib/python3.10/site-packages/requests/sessions.py", line
703, in send
r = adapter.send(request, **kwargs)
File "/usr/python/lib/python3.10/site-packages/requests/adapters.py", line
677, in send
raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='8e79b3d36f33',
port=8794): Max retries exceeded with url:
/log/dag_id=each_two_wait_one_async/run_id=manual__2025-09-10T16:13:15.237946+00:00/task_id=wait_exec_plus_one/attempt=1.log.trigger.3.log
(Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at
0xffff5f742200>: Failed to establish a new connection: [Errno 111] Connection
refused'))
INFO: 192.168.97.1:57238 - "GET
/api/v2/dags/each_two_wait_one_async/dagRuns/manual__2025-09-10T16%3A13%3A15.237946%2B00%3A00/taskInstances/wait_exec_plus_one/logs/1?map_index=-1
HTTP/1.1" 200 OK
```
### What you think should happen instead?
_No response_
### How to reproduce
1. Trigger a deferred task
2. click on deferred task in UI
3. Check API server logs
### Operating System
OS
### Versions of Apache Airflow Providers
_No response_
### Deployment
Official Apache Airflow Helm Chart
### Deployment details
_No response_
### Anything else?
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [x] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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