[BUG] Unhandled exception in ASGI server due to Redis server closure

[AleksaMCode]

Is there an existing issue for this?

• [X] I have searched the existing issues

Description

An unhandled Exception occurs on the ASGI server when Redis server is closed unexpectedly.

System information

1. Kali Linux
2. 2023.3
3. Raspberry Pi 4

Actual Behavior

• After the Redis server is closed, an unhandled Exception occurs on the ASGI server.
  • The Exception occurs on a Thread that handles execution _pubsub_data_reader() method from WebSocketBroker class.
• Client socket connections get closed (Web app and Sniffer).
• Sniffer tries to reconnect and after 5 attempts it stops.

Expected Behavior

• ASGI server handles the Exception without crashing and possibly tries to reconnect to the Redis server before shutting down.

Steps To Reproduce

1. Start the Redis server
2. Start the ASGI server
3. Start the React server
4. Start the Sniffer
5. Close the Redis server

Anything else?

Here is a screenshot of the Exception. The exception was:

redis.exceptions.ConnectionError: Connection closed by server.