ws sticky session connection state recovery

[mrosu90]

Hi,

Using websocket transport, is it possible to have load balancing with sticky sessions (cookie) and connection state recovery?
I'm using websocket as a communication medium with a webrtc SFU server and wss recovery is important.

Thanks

[darrachequesne]

Hi!

If you only use WebSocket (no HTTP long-polling), then sticky sessions are not necessary.

Reference: https://socket.io/docs/v4/client-options/#transports

Regarding connection state recovery, you need to use an adapter that supports this feature (Redis Streams or MongoDB, at the time of writing).

Reference: https://socket.io/docs/v4/connection-state-recovery#compatibility-with-existing-adapters