gastonlau opened a new issue #17120:
URL: https://github.com/apache/airflow/issues/17120
Hi Airflow Team,
I am running the Airflow in an EC2 instance which is installed by
conda-forge during the Code Deploy.
After upgrading the Airflow version from 2.0.2 to >=2.1.0, I am facing an
error every time when I try to start the scheduler in daemon mode using this
command: ```airflow scheduler --daemon```
I took a look at a similar issue #11456 and try to fix it with Python 3.8.10
and `python-daemon` 2.3.0 but still doesn't work.
The webserver is working fine, but it can't detect the scheduler.
```
Traceback (most recent call last):
File
"/home/ec2-user/anaconda3/envs/airflow_env/lib/python3.8/site-packages/sqlalchemy/engine/base.py",
line 2336, in _wrap_pool_connect
return fn()
File
"/home/ec2-user/anaconda3/envs/airflow_env/lib/python3.8/site-packages/sqlalchemy/pool/base.py",
line 364, in connect
return _ConnectionFairy._checkout(self)
File
"/home/ec2-user/anaconda3/envs/airflow_env/lib/python3.8/site-packages/sqlalchemy/pool/base.py",
line 809, in _checkout
result = pool._dialect.do_ping(fairy.connection)
File
"/home/ec2-user/anaconda3/envs/airflow_env/lib/python3.8/site-packages/sqlalchemy/engine/default.py",
line 575, in do_ping
cursor.execute(self._dialect_specific_select_one)
psycopg2.OperationalError: SSL SYSCALL error: Socket operation on non-socket
```
Relevant package version:
`sqlalchemy`=1.3.23
`psycopg2`=2.8.6
`python-daemon`=2.3.0
`apache-airflow-providers-http`=2.0.0
`apache-airflow-providers-elasticsearch`=2.0.2
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