MyCAT基础概念

Yyyy4822025-08-20 17:18

1.数据源：MyCAT用于连接后端的MySQL数据库，连接信息

用户名、密码、IP

datasources：设置数据源

2.MyCAT集群设置：对后端MySQL进行组合设置，例如主、从、只读、读写、分库、分表

clusters：设置集群

3.MyCAT用户设置:users

4.MyCAT逻辑库设置：schemas

#mycat注释指令：

①清空所有配置：/*+ mycat:resetConfig{} */

②创建mycat用户

/*+ mycat:createUser{

"username":"user",

"password":"",

"ip":"127.0.0.1",

"transactionType":"xa"}

③查看mycat的用户：/*+ mycat:showUsers*/

④ 创建数据源

复制代码

/*+ mycat:createDataSource{
    "dbType":"mysql",
    "idleTimeout":60000,
    "initSqls":[],
    "initSqlsGetConnection":true,
    "instanceType":"READ_WRITE",
    "maxCon":1000,
    "maxConnectTimeout":3000,
    "maxRetryCount":5,
    "minCon":1,
    "name":"dc1",
    "password":"root123",
    "type":"JDBC",
    "url":"jdbc:mysql://127.0.0.1:3306?useUnicode=true&serverTimezone=UTC&characterEncoding=UTF-8",
    "user":"root",
    "weight":0}
*/

查看数据源：/*+ mycat:showDataSources{} */