amoeba 实现读写分离(借鉴)

1.准备三台服务器 我的是centos7版本的

做MySQL的主从状态 可以参考

https://www.cnblogs.com/chenxiaodou/articles/11993283.html

在MySQL的主从的服务器上给amoeba服务器授权一个可以操作读写的用户

1 2	grant all on *.* to 'amoeba'@'192.168.18.%' identified by '123'; flush privileges;

在Amoeba的服务器上安装Amoeba

1.安装jdk版本  要安装1.6的版本

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将JDK的二进制包安装在此路径下cd /usr/local 给予权限 chmod +x  jdk-6u14-linux-x64.bin 在当前路径下开始执行 ./ jdk-6u14-linux-x64.bin 一直按回车 直到遇见让你输入yes or no  输入yes即可回车 更改jdk安装目录的名字   mv  jdk1.6.0_14   jdk1.6   修改环境变量  在末尾加入以下内容 vim /etc/profile ------------------------------------------------------------ export AMOEBA=/usr/local/amoeba export JAVA_HOME=/usr/local/jdk1.6 export PATH=$PATH:$JAVA_HOME/bin:$AMOEBA/bin ------------------------------------------------------------ 使增加的变量生效 source /etc/profile

　下载Ameoba的安装包 

1 2	cd /usr/local wget http://nchc.dl.sourceforge.net/project/amoeba/Amoeba%20for%20mysql/2.x/amoeba-mysql-binary-2.1.0-RC5.tar.gz

为Amoeba创建安装目录

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mkdir /usr/local/amoeba cd /usr/local/amoeba 在当前路径下下载amoeba wget http://nchc.dl.sourceforge.net/project/amoeba/Amoeba%20for%20mysql/2.x/amoeba-mysql-binary-2.1.0-RC5.tar.gz 解压Ameoba的安装包 tar -zxf amoeba-mysql-binary-2.1.0-RC5.tar.gz

　　

配置文件dbServers.xml

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cd /usr/local/ameoba/conf vim dbServers.xml ----------------------------------------------------------------------------------------- ……     <!-- mysql port -->     <property name="port">3306</property>        <!-- mysql schema -->     <property name="schema">test</property>        <!-- mysql user -->      <property name="user">amoeba</property>  //MySQL主从中给予权限的用户        <!--  mysql password-->      <property name="password">123</property>  //MySQL主从中给予权限的用户的密码                   ……     <dbServer name="server1"  parent="abstractServer">                 <factoryConfig>                         <!-- mysql ip -->                         <property name="ipAddress">192.168.18.141</property>  //MySQL主的IP地址                 </factoryConfig>         </dbServer>           <dbServer name="server2"  parent="abstractServer">                 <factoryConfig>                         <!-- mysql ip -->                         <property name="ipAddress">192.168.18.142</property>   //MySQL从的IP地址                 </factoryConfig>         </dbServer>         <dbServer name="slave" virtual="true">                 <poolConfig class="com.meidusa.amoeba.server.MultipleServerPool">                         <!-- Load balancing strategy: 1=ROUNDROBIN , 2=WEIGHTBASED , 3=HA-->                         <property name="loadbalance">1</property>                           <!-- Separated by commas,such as: server1,server2,server1 -->                         <property name="poolNames">server2</property>                 </poolConfig>         </dbServer>

　编辑ameoba,.xml文件  

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cd /usr/local/ameoba/conf vim ameoba.xml ---------------------------------------------------------------------------------- …… <property name="authenticator">                                 <bean class="com.meidusa.amoeba.mysql.server.MysqlClientAuthenticator">                                           <property name="user">jave</property>                                           <property name="password">123</property>                                           <property name="filter">                                                 <bean class="com.meidusa.amoeba.server.IPAccessController">                                                         <property name="ipFile">${amoeba.home}/conf/access_list.conf</property>                                                 </bean>                                         </property>                                 </bean>                         </property> …… <queryRouter class="com.meidusa.amoeba.mysql.parser.MysqlQueryRouter">                 <property name="ruleLoader">                         <bean class="com.meidusa.amoeba.route.TableRuleFileLoader">                                 <property name="ruleFile">${amoeba.home}/conf/rule.xml</property>                                 <property name="functionFile">${amoeba.home}/conf/ruleFunctionMap.xml</property>                         </bean>                 </property>                 <property name="sqlFunctionFile">${amoeba.home}/conf/functionMap.xml</property>                 <property name="LRUMapSize">1500</property>                 <property name="defaultPool">server1</property>                   <property name="writePool">server1</property>                 <property name="readPool">slave</property>                 <property name="needParse">true</property>         </queryRouter>   --------------------------------------------------------------------------------

　　启动amoeba 

1 2	cd /usr/local/amoeba/bin ./amoeba start  出现以下字样

　表示启动成功　

把Amoeba的终端再开启一台  

关闭防火墙 SELinux 安装数据库

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systemctl stop firewalld setenforce 0 yum -y install mariadb mariadb-server

登录amoeba测试读写分离效果

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mysql -ujave -p123 -h192.168.189.167 -P8066 create database ceshi charset utf8; 可以在MySQL主从数据库中查看是否存在这个数据库 在从的MySQL数据库中停掉从的同步 stop slave; 在amoeba的服务器上再创建一个数据库 这时再分别去主从数据库上查看 只有主的可以看到刚刚创建的数据库 而从上看不到 这样就实现了读写分离