官网:http://mycat.io/
1:下载mycat
#wget http://dl.mycat.io/1.6-RELEASE/Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz
2:下载jdk-8u45-linux-x64.tar.gz
#tar zxvf jdk-8u45-linux-x64.tar.gz -C /usr/local/
3:设置环境变量
#vi /etc/profile
JAVE_HOME=/usr/local/jdk1.8.0_171
PATH=$PATH:$JAVE_HOME/bin
保存退出,及时生效
#source /etc/profile
4:解压到指定目录
#tar zxvf Mycat-server-1.6-RELEASE-20161028204710-linux.tar.gz -C /usr/local/
5:mycat配置
#vi /usr/local/mycat/conf/server.xml
<user name="myroot">
<property name="password">1234567</property>
<!-- 多数据库多表设置 -->
<property name="schemas">test,wp</property>
<!-- 表级 DML 权限设置 -->
<!--
<privileges check="false">
<schema name="TESTDB" dml="0110" >
<table name="tb01" dml="0000"></table>
<table name="tb02" dml="1111"></table>
</schema>
</privileges>
-->
</user>
<!--
<user name="user">
<property name="password">user</property>
<property name="schemas">test</property>
<property name="readOnly">true</property>
</user>
-->
#vi /usr/local/mycat/conf/schema.xml
<?xml version="1.0"?>
<!DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<!-- 数据库显示的名称不是mysql的名称,而是schema设置的name名称 -->
<schema name="test" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn1">
</schema>
<!-- 多个数据库设置 -->
<schema name="wp" checkSQLschema="false" sqlMaxLimit="100" dataNode="dn2">
</schema>
<dataNode name="dn1" dataHost="myHost" database="test" />
<dataNode name="dn2" dataHost="myHost" database="wp" />
<dataHost name="myHost" maxCon="1000" minCon="10" balance="3"
writeType="0" dbType="mysql" dbDriver="native" switchType="1" slaveThreshold="100">
<heartbeat>select user()</heartbeat>
<!-- can have multi write hosts -->
<writeHost host="MySQL-Master" url="192.168.31.57:3306" user="root" password="123456">
<!-- can have multi read hosts -->
<readHost host="LVS-Master01" url="192.168.31.55:3306" user="root" password="123456" />
<readHost host="LVS-Master02" url="192.168.31.56:3306" user="root" password="123456" />
</writeHost>
</dataHost>
</mycat:schema>
6:控制台启动,测试用查看日志
#./bin/mycat console
正常启动
#./bin/mycat start
#./bin/mycat stop
7:连接mycat,用的是mycat的账户密码,不是mysql的账户密码
#mysql -h192.168.31.3 -uroot -p123456 -P 8066 #数据端口
MyCat管理
#mysql -h192.168.31.3 -uroot -p123456 -P 9066 #管理端口,没有修改数据权限
mysql> show @@help;
mysql> show @@datasource; #查看状态,写了多少次,读了多少次
MySQL实战六:mycat中间件实现读写分离
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转载自blog.csdn.net/qq_28710983/article/details/80938272
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