MyCat常用配置

schema.xml

<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
    <schema name="TESTDB" checkSQLschema="false" sqlMaxLimit="100">
        <!--全局表-->
        <table name="school" primaryKey="ID" type="global" dataNode="dn1,dn2,dn3" />

        <!--夸库单表-->
        <table name="teacher" primaryKey="ID" dataNode="dn1,dn2,dn3" rule="mod-long" />

        <!--夸库主从表-->
        <table name="class" primaryKey="ID" dataNode="dn1,dn2,dn3" rule="mod-long">
            <childTable name="student" primaryKey="ID" joinKey="class_id" parentKey="id" />
        </table>

        <!--单库分布-->
        <table name="order" primaryKey="ID" autoIncrement="true" subTables="order$1-3" dataNode="dn1" rule="mod-long"/>
    </schema>

    <dataNode name="dn1" dataHost="localhost1" database="db1" />
    <dataNode name="dn2" dataHost="localhost1" database="db2" />
    <dataNode name="dn3" dataHost="localhost1" database="db3" />

    <dataHost name="localhost1" maxCon="1000" minCon="10" balance="0"
              writeType="0" dbType="mysql" dbDriver="native" switchType="1"  slaveThreshold="100">
        <heartbeat>select user()</heartbeat>        
        <writeHost host="hostS1" url="localhost:3306" user="root" password="123456" />
    </dataHost>
</mycat:schema>

注意：
1. MyCat1.6版本配置单库分表会报异常，按此修复http://songwie.com/articlelist/202

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