What I Learned From Pushing Redis Cluster to Its Limits

Creating a new instance · Introducing the new instance to the cluster · Reshard the hash slots a) Import a hash slot; b) Migrate the hash slot; c) Migrating the

Gosse Wedzinga Cluster 2 Cluster 1 Root Node Cluster 6 Switching Node Backbone Cluster 3 Used in this time slot Not used in this time slot Not used in any time

clusterdown hash slot not served Firstly, lets understand the Redis key-slot distribution By design, Redis has 0 - 16383 key-slots that are usually distributed equally across

cluster slot class Redis::Cluster::Slot Keep slot and node key map for Redis Cluster Client def assign_node_key def assign_node_key(mappings,