TiDB A Raftbased HTAP Database
1 minute read ∼ Filed in : A paper noteIntroduction
Background & Motivation
Complex OLAP query requires strong data consistency and sub-second delay.
Gap
OLAP database may read stale data. OLTP databases lack massive parallel processing capability.
Goal
To build large-scale real-time HTAP supporting fresh data changes and strong data consistency.
- Scale up to petabytes of data.
- Low-performance degradation on either OLAP and OLTP.
- Fresh delay: < 1s
- Strong data consistency: a consistent global snapshot.
System
