Core Concept

Master Database

It refers to the database used in data insert, update and delete operations. Only support single master database for now.

Slave Database

It refers to the database used in data query. Support multiple slave databases.

Master-slave replication

It refers to the operation to asynchronously replicate the data from the master database to the slave database. Because of master-slave asynchronization between the master database and the slave database, there may be short-time data inconsistency between the master database and the slave database.

Load Balance Strategy

Through this strategy, queries are separated to different slave databases.