Three independent Mattermost nodes share one database + Redis. Each pane below is a live client
connected to a different node. Type in one pane — the message is delivered locally, then the gossip relay
republishes it over Redis so it appears in the other panes on the other nodes in real time. That cross-node
arrival is the thing being tested.
Team demo · channel general-banter. Messages arriving from another node are marked relayed.
What to look for: send a message in Node A (blue) as alice; it should appear almost instantly in
Node B (green) and Node C (amber) even though those clients are connected to different servers.
Green-bordered messages were relayed cross-node. Open this page in two browsers / share it with a colleague to test as separate users.