socket.io room connection issue

[nikunjxsquads]

I have a Kubernetes cluster with two nodes, and each node has one pod running. Each pod hosts a Node.js server that manages socket clients, and I'm using a Redis adapter for socket communication. The communication works properly when a client on pod1 sends a message to a client on pod2. However, I'm facing an issue with socket messaging when emitting to a room.

For example, if I have 10 socket users—5 connected to pod1 and 5 connected to pod2—and pod1 creates a socket room, adding 2 clients from pod1 and 5 clients from pod2, only the 2 clients connected to pod1 receive the messages when an event is emitted to the room from pod1. The clients on pod2 do not receive any messages.

Technologies Used:

Socket.IO
Redis
@socket.io/redis-adapter
Kubernetes
Docker
Node.js