SSUBSCRIBE

Syntax

SSUBSCRIBE shard_channel [shard_channel ...]

Time complexity: O(N) where N is the number of channels to subscribe to.

ACL categories: @pubsub, @slow

In a Dragonfly cluster, shard channels are assigned to slots with the same algorithm used to assign keys to slots. These channels remain active on a shard, even during slot migrations. After a migration is complete, subscribed clients get redirected to the new node that owns the moved slot. All the shard channels needs to belong to a single slot in a given SSUBSCRIBE call. Clients can subscribe to channels that belong to different slots via separate calls to SSUBSCRIBE.

Examples

ssubscribe movies
Reading messages... (press Ctrl-C to quit)
1) "ssubscribe"
2) "movies"
3) (integer) 1
1) "smessage"
2) "movies"
3) "Fly me to the moon"