Codis is a distributed proxy system designed for scaling Redis clusters. It provides a sharding proxy that distributes data across multiple instances and a cluster manager to oversee the environment.
The system enables horizontal scaling through dynamic resharding, which allows data slots to be migrated between servers without interrupting operations. It supports multi-key atomic operations using hash tags to ensure related keys are routed to the same server.
The platform includes a graphical cluster management dashboard for monitoring and administration. It implements high availability proxying through coordination services to route traffic away from failed nodes and utilizes pipelined command execution to reduce network latency.
