Distributed Database Concepts
Cells can be geographically separated, allowing for a distributed architecture like YouTube's global replicas. A key space functions as a logical database within a Vitess cluster, encompassing multiple physical servers and shards. Shards represent subsets of key spaces, partitioning data for efficient management and access, ensuring each row resides in only one shard.In this clip
From this podcast

Software Engineering Radio - the podcast for professional software developers
Episode 510: Deepthi Sigireddi on How Vitess Scales MySQL
Related Questions