Anirudhaagrawal opened a new issue #16000:
URL: https://github.com/apache/airflow/issues/16000
```
kc logs airflow-run-airflow-xxx
BACKEND=postgresql
DB_HOST=123@{{postgres_host}}
DB_PORT=5432
....................
ERROR! Maximum number of retries (20) reached.
Last check result:
$ run_nc '123@{{postgres_host}}' '5432'
Traceback (most recent call last):
File "<string>", line 1, in <module>
socket.gaierror: [Errno -2] Name or service not known
Can't parse as an IP address
```
My password for external Postgres RDS contained '@123' at the end which got
appended to the host of the DB due to some bug. One can notice in the logs, the
DB_HOST has an unwanted 123@ in the front of it
DB_HOST=**123@**{{postgres_host}}. I removed '@' character from the password
and it worked fine.
One can easily reproduce this by using a password that contains the '@'
character in it.
```
data:
metadataConnection:
user: {{postgres_airflow_username}}
pass: {{postgres_airflow_password}}
protocol: postgresql
host: {{postgres_host}}
port: 5432
db: {{postgres_airflow_dbname}}
```
Expected behavior:
Migrations should run irrespective if the Postgres password contains an @
character or not.
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