It refers to the database used in data insert, update and delete operations. Only support single master database for now.
It refers to the database used in data query. Support multiple slave databases.
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.
Through this strategy, queries are separated to different slave databases.
To configure read-write split meta-data, users can acquire masterSlaveConfig data in ConfigMap by calling for ConfigMapContext.getInstance().
For example, machines of different weights can have different traffic.
ConfigMap can be used to configure machine weight meta-data.