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读写分离

读写分离 #

Resource Operation #

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;