BasPH opened a new issue #8687:
URL: https://github.com/apache/airflow/issues/8687
**Apache Airflow version**:
1.10.10
**Kubernetes version (if you are using kubernetes)** (use `kubectl version`):
**Environment**:
- **Cloud provider or hardware configuration**:
- **OS** (e.g. from /etc/os-release):
- **Kernel** (e.g. `uname -a`):
- **Install tools**:
- **Others**:
**What happened**:
I started the Airflow webserver on an occupied port (8080), and it kept
trying to reconnect. So I wanted to quit with ctrl+C, but the signal is not
handled. Only `kill -9` can shutdown the process:
```
$ airflow webserver
____________ _____________
____ |__( )_________ __/__ /________ __
____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / /
___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ /
_/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/
.....
[2020-05-03 10:43:09 +0200] [7403] [INFO] Starting gunicorn 19.9.0
[2020-05-03 10:43:09 +0200] [7403] [ERROR] Connection in use: ('0.0.0.0',
8080)
[2020-05-03 10:43:09 +0200] [7403] [ERROR] Retrying in 1 second.
[2020-05-03 10:43:10 +0200] [7403] [ERROR] Connection in use: ('0.0.0.0',
8080)
[2020-05-03 10:43:10 +0200] [7403] [ERROR] Retrying in 1 second.
[2020-05-03 10:43:11 +0200] [7403] [ERROR] Connection in use: ('0.0.0.0',
8080)
[2020-05-03 10:43:11 +0200] [7403] [ERROR] Retrying in 1 second.
^C[2020-05-03 10:43:12 +0200] [7403] [ERROR] Connection in use: ('0.0.0.0',
8080)
[2020-05-03 10:43:12 +0200] [7403] [ERROR] Retrying in 1 second.
^C[2020-05-03 10:43:13 +0200] [7403] [ERROR] Connection in use: ('0.0.0.0',
8080)
[2020-05-03 10:43:13 +0200] [7403] [ERROR] Retrying in 1 second.
^C^C^C^C^C^C^C^C^C^C^C^C^C^C[2020-05-03 10:43:14 +0200] [7403] [ERROR] Can't
connect to ('0.0.0.0', 8080)
^C^C^C^C^C^C^C^CKilled: 9
```
You can see the `^C` not leading to a shutdown of the process.
**What you expected to happen**:
I expect the webserver to handle signals, even when the startup process
hasn't completed yet.
<!-- What do you think went wrong? -->
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**Anything else we need to know**:
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