读写分离

存储单元操作

REGISTER STORAGE UNIT write_ds (
    HOST="127.0.0.1",
    PORT=3306,
    DB="ds_0",
    USER="root",
    PASSWORD="root"
),read_ds (
    HOST="127.0.0.1",
    PORT=3307,
    DB="ds_0",
    USER="root",
    PASSWORD="root"
);

规则操作

• 创建读写分离规则

CREATE READWRITE_SPLITTING RULE group_0 (
WRITE_STORAGE_UNIT=write_ds,
READ_STORAGE_UNITS(read_ds),
TYPE(NAME="random")
);

• 修改读写分离规则

ALTER READWRITE_SPLITTING RULE group_0 (
WRITE_STORAGE_UNIT=write_ds,
READ_STORAGE_UNITS(read_ds),
TYPE(NAME="random",PROPERTIES("read_weight"="2:0"))
);

• 删除读写分离规则

DROP READWRITE_SPLITTING RULE group_0;

• 移除数据源

UNREGISTER STORAGE UNIT write_ds,read_ds;

• 删除分布式数据库

DROP DATABASE readwrite_splitting_db;