Kylin 5 整体设计

信息

除非有更多的注释，否则所有的源代码分析都是基于这个代码快照。

关于 Kylin 5.0 的设计

1. Metadata Store
   • Metadata Store
   • Metadata Cache
   • Transaction(CRUD of Metadata)
   • Epoch, AuditLog, etc.
2. Metadata Format/Schema
   • DataModel, IndexPlan, and Dataflow
   • Index and Layout
   • Computed Column
   • Schema Change
3. Query Engine
   • How a SQL query was executed in Kylin?
   • Query Cache
   • Query Profile
4. Model Engine
   • Schema Change(Model Change, Table Change)
5. Build Engine
   • Build AggIndex
   • Build TableIndex
   • Build Snapshot
6. Job Engine
   • JobScheduler
   • HA(and epoch)