Amoeba是一个类似MySQL Proxy的分布式数据库中间代理层软件，是由陈思儒开发的一个开源的java项目

mkdir /usr/local/amoeba
tar xf amoeba-mysql-binary-2.2.0.tar.gz -C /usr/local/amoeba # 使用二进制程序文件安装amoeba
cd /usr/local/amoeba
bin/amoeba start # 前台运行
nohup /usr/local/amoeba/bin/amoeba start & # 后台运行
mysql -h127.0.0.1 -uroot -p -P8066 # amoeba默认监听端口为8066

cd /usr/local/amoeba/conf
vi ameoba.xml # 前端定义配置文件
# 修改ameoba前端监听端口
<service name="Amoeba for Mysql" class="com.meidusa.amoeba.net.ServerableConnectionManager">
    <property name="port">3306</property> # 默认端口是8066，修改为3306，便于实现前端程序连接数据库的透明性
# 修改连接amoeba接口的认证信息
<property name="authenticator">
    <bean class="com.meidusa.amoeba.mysql.server.MysqlClientAuthenticator">   
        <property name="user">root</property>   
        <property name="password">mypass</property> # 添加登录密码
# 查询路由设置
<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">${amoeba.home}/conf/functionMap.xml</property>
    <property name="LRUMapSize">1500</property>
    <property name="defaultPool">master</property> # 设定默认节点
    <property name="writePool">master</property>    # 设定可写节点，节点定义见dbServers.xml文件
    <property name="readPool">readservers</property> # 设定只读池，可配置多个slave节点
    <property name="needParse">true</property>
</queryRouter>
vi dbServers.xml # 后端节点配置文件
# 定义抽象服务器，为每个后端MySQL服务器提供默认连接配置
<dbServer name="abstractServer" abstractive="true">
    <factoryConfig class="com.meidusa.amoeba.mysql.net.MysqlServerConnectionFactory">
        <property name="manager">${defaultManager}</property>
        <property name="sendBufferSize">64</property>
        <property name="receiveBufferSize">128</property>
        <property name="port">3406</property>
        <property name="schema">test</property>
        <property name="user">root</property>
        <property name="password">magedu</property>
    </factoryConfig>
# 定义后端MySQL的IP地址，一个master，一个slave
<dbServer name="master"  parent="abstractServer">
    <factoryConfig>
        <property name="ipAddress">192.168.0.45</property>
    </factoryConfig>
</dbServer>
<dbServer name="slave"  parent="abstractServer">
    <factoryConfig>
        <property name="ipAddress">192.168.0.46</property>
    </factoryConfig>
</dbServer>
# 定义虚拟服务器组，即只读池readservers
<dbServer name="readservers" virtual="true">
    <poolConfig class="com.meidusa.amoeba.server.MultipleServerPool">
        <property name="loadbalance">1</property>
        <property name="poolNames">master,slave</property>
    </poolConfig>
</dbServer>

MariaDB [(none)]> grant all on *.* to‘root‘@‘172.16.%.%‘ identified by ‘magedu‘;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> grant all on *.* to‘root‘@‘%mysql.com‘ identified by ‘magedu‘; # 这里的密码应该与dbServer.xml中的数据库密码一致
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

# 登录验证
[root@mysql conf]# mysql -h127.0.0.1 -uroot -p -P3306
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 2097086015
Server version: 5.1.45-mysql-amoeba-proxy-2.2.0 Source distribution
Copyright (c) 2000, 2014, Oracle, SkySQL Ab and others.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
MySQL [(none)]> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000030 |      326 |              |                  |
+------------------+----------+--------------+------------------+
1 row in set (0.00 sec)
MySQL [(none)]>
# 读写验证
[root@mysql conf]# mysql -h127.0.0.1 -uroot -p -P3306
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MySQL connection id is 2097086015
Server version: 5.1.45-mysql-amoeba-proxy-2.2.0 Source distribution
Copyright (c) 2000, 2014, Oracle, SkySQL Ab and others.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
MySQL [(none)]> create database amoeba_test;
Query OK, 1 row affected (0.04 sec)
MySQL [(none)]>
[root@mysql bin]# mysql -h127.0.0.1 -uroot -p -P3406
Enter password:
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 33
Server version: 10.0.10-MariaDB-log Source distribution
Copyright (c) 2000, 2014, Oracle, SkySQL Ab and others.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
MariaDB [(none)]> show databases;
+--------------------+
| Database           |
+--------------------+
| amoeba_test        |
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
9 rows in set (0.01 sec)
MariaDB [(none)]>
# 从amoeba接口登录创建数据库amoeba_test后，再从主库的接口中去查询数据库已创建，说明写入确实是落在了主库节点上；
# 若要验证ameoba对于读操作的调度，则需要暂时停止从库的复制操作，然后在主库上更新数据，这样从ameoba读取数据将出现不一致的情况；