Talk:Redis cache store

"If you are configuring a cluster of Moodle servers/nodes, the Redis service (daemon) should be installed on an external server and all Moodle nodes (servers/instances) should point to that external Redis. so all user's data is available when the user is using (connected to) any of the Moodle nodes, in case the user's connection is not persistent (sticky) to a specific node for the entire Moodle session."

This bit is not really correct, unless you meant only session cache: in case the user's connection is not persistent (sticky) to a specific node for the entire Moodle session