# TiKV Architecture in a Macro View (1/2)

+ Application via MySQL Protocol



+ PD Cluster



+ DistSQL API
+ KV  API



+ PD
+ PD
+ PD

+ Metadata
+ TSO/Data Location

+ TiDB

+ TiDB

+ TiDB


+ TiKV

+ TiKV

+ TiKV

+ TiKV

------------------------------------------------------------