I developed the application using Django and I used Django channels in it for messages.
My websocket connections were working fine as soon as I was using my local db.sqlite3 but when I shifted to using PostgreSQL hosted on AWS RDS, I start getting connection error:
HTTP GET /community/groups/5/ 200 [5.13, 127.0.0.1:1905]
WebSocket HANDSHAKING /ws/group/5/ [127.0.0.1:1908]
HTTP GET /AI/tools-list/ 200 [2.72, 127.0.0.1:1905]
WebSocket DISCONNECT /ws/group/5/ [127.0.0.1:1908]
WebSocket HANDSHAKING /ws/notifications/ [127.0.0.1:1913]
WebSocket DISCONNECT /ws/notifications/ [127.0.0.1:1913]
Disconnected with close code: 1006
Note: Sometimes, my notification websocket gets connected but group chat websocket never gets connected
I tried connecting to websocket but it keeps on failing
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It looks like the issue might be due to your environment configuration after moving to AWS RDS. Try the following suggestions to resolve it:
1. Redis Configuration
Django Channels relies on Redis as a channel layer backend for managing WebSocket connections. Make sure Redis is running and properly configured in your settings.py file:
CHANNEL_LAYERS = {
'default': {
'BACKEND': 'channels_redis.core.RedisChannelLayer',
'CONFIG': {
"hosts": [('127.0.0.1', 6379)], # Replace with your Redis server host/port if needed
},
},
}
If you’re using a cloud-hosted Redis instance, update the "hosts" field accordingly.
2. PostgreSQL Configuration
Ensure your PostgreSQL database hosted on AWS RDS is correctly configured in settings.py. The connect_timeout option can help handle network delays, especially in cloud environments:
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql',
'NAME': 'your_db_name',
'USER': 'your_db_user',
'PASSWORD': 'your_db_password',
'HOST': 'your_aws_rds_host',
'PORT': '5432',
'OPTIONS': {
'connect_timeout': 10, # Adjust as necessary
},
},
}
3. ASGI Server Configuration
Django Channels requires an ASGI server (like Daphne or Uvicorn) to handle WebSocket connections. Ensure you’re running the server with the correct command:
daphne -u /path/to/your/asgi.py application
If using Uvicorn:
uvicorn your_project.asgi:application
Also, the problem might be related to your load balancer or firewall configuration. Ensure they are correctly set up to support WebSocket connections.