PUBLISH

Usage:
PUBLISH channel message
Complexity:
O(N+M) where N is the number of clients subscribed to the receiving channel and M is the total number of subscribed patterns (by any client).
Since:
2.0.0

Posts a message to the given channel.

In a Valkey Cluster clients can publish to every node. The cluster makes sure that published messages are forwarded as needed, so clients can subscribe to any channel by connecting to any one of the nodes.