Ring Keys() command should aggregate results from each shard.

[didip]

The current behavior picks one server and runs Keys(), I think that's not correct.

[vmihailenco]

It is easy to do it for Keys but Redis has so many commands that I don't even want to start going this way. But you can use ForEachShard:

err := ring.ForEachShard(func(client *redis.Client) error {
    keys, err := client.Keys()
    fmt.Println(keys)
    return err
})