Cluster support is based on the very same building blocks as non clustered communication. RedisClusterConnection and extension to RedisConnection handles the communication with the Redis Cluster and translates errors into the Spring DAO exception hierarchy.
Redirects for to a specific keys to the corresponding slot serving node are handled by the driver libraries, higher level functions like collecting information accross nodes, or sending commands to all nodes in the cluster that are covered by RedisClusterConnection utilizing a ClusterCommandExecutor distributing commands accross the cluster and collecting results.
RedisTemplate provides access to cluster specific operations via the ClusterOperations interface that can be obtained via RedisTemplate.opsForCluster(). This allows to execute commands explicitly on a single node within the cluster while retaining de-/serialization features configured for the template.
Original pull request: #158.
c5047f40c6