of Chaos Engineering 2010 2019 2015 Principles of Chaos Engineering Chaos Engineering In TiDB TiD B TiD B TiD B Application via MySQL Protocol TiK V TiK V TiFlas h TiK V TiK V .. Draine r TiDB Binlog DM Worker DM Worker Data Migratio n DM Master Upstream Database Downstrea m Database Backup & Recovery Lightnin g KV Importer KV Dumper Diagnosis Monitorin g TiDB Vision Vision TiDB Insight TiDB Operator TiDB Ansible Schrodinge r TiFlas h An experiment on TiDB ● Steady state ○ QPS metrics ● Hypothesis ○ TiDB uses Raft consensus algorithm to replicate data and

Sharding-JDBC DRDS Sharding-Proxy MyCAT DBLE KingShard Vitess ? Spanner Aurora GaussDB PolarDB OceanBase TiDB Cockroach DB …… 3.分布式数据库 1.水平扩展性 2.计算存储分离 3.分布式事务 4.多副本机制 5.SQL接入支持 6.云原生支持 容量 性能 一致性 可高用 易用性