环境：
一台CentOS6.5-x64最小化安装(ip:10.0.0.226)
软件：jdk-8u60-linux-x64.rpm， amoeba-mysql-binary-2.2.0.tar.gz
下载地址：链接: http://pan.baidu.com/s/1c04Wmys 密码: 4tqe
2.一台CentOS6.5-x64最小化安装(ip:10.0.0.222)
为了节省资源，本次使用的是mysql多实例。3306为主(master)，3307为从（slave).
主从同步这里就不在说明了，创建好主从同步后要先停止从库同步。进入mysql后slave stop;
3.测试机（ip:10.0.0.111)
测试机应事先有装过mysql,不然登陆的amoeba服务器的时候会出现-bash: mysql: command not found.(如果不是这样的，还希望大侠能留下相关办法。谢谢！）
3306主库（master)创建用户,这个用户是用来给amoeba写数据时候使用。语句如下：
mysql> GRANT SELECT, INSERT, UPDATE, DELETE ON *.* TO ‘amoeba‘@‘10.0.0.%‘ IDENTIFIED BY ‘123456‘;
3307从库（slave)创建用户,这个用户是用来给amoeba查询数据时候使用。语句如下：
mysql> GRANT SELECT ON *.* TO ‘amoeba‘@‘10.0.0.%‘ IDENTIFIED BY ‘123456‘;
Amoeba安装和配置
安装：
[root@amoeba ~]# rpm -ivh jdk-8u60-linux-x64.rpm
[root@amoeba ~]# ln -s /usr/java/jdk1.8.0_60/ /usr/java/jdk1.8 #做个软连接，方便后面操作
[root@amoeba ~]# vi /etc/profile
在最后面添加以下两行：
export JAVA_HOME=/usr/java/jdk1.8
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
[root@amoeba ~]# source /etc/profile #使刚加入的两行生效
[root@amoeba ~]# mkdir -p /usr/local/amoeba
[root@amoeba ~]# cd /usr/local/amoeba
[root@amoeba amoeba]# tar xf amoeba-mysql-binary-2.2.0.tar.gz
[root@amoeba amoeba]# rm amoeba-mysql-binary-2.2.0.tar.gz
[root@amoeba amoeba]# chmod 700 -R bin/
配置：
2.2.0和1.3.1有些不一样
1.3.1是只要修改/usr/local/amoeba/conf/amoeba.xml这个配置文件就可以的
2.2.0是把/usr/local/amoeba/conf/amoeba.xml这个配置文件分开了，一个是amoeba.xml,另一个是dbServers.xml
下面贴出配置，尽供参考：
dbServers.xml
[root@amoeba conf]# cat dbServers.xml
<?xml version="1.0" encoding="gbk"?>
<!DOCTYPE amoeba:dbServers SYSTEM "dbserver.dtd">
<amoeba:dbServers xmlns:amoeba="http://amoeba.meidusa.com/">
<!--
Each dbServer needs to be configured into a Pool,
If you need to configure multiple dbServer with load balancing that can be simplified by the following configuration:
add attribute with name virtual = "true" in dbServer, but the configuration does not allow the element with name factoryConfig
such as ‘multiPool‘ dbServer
-->
<dbServer name="abstractServer1" abstractive="true">
<factoryConfig class="com.meidusa.amoeba.mysql.net.MysqlServerConnectionFactory">
<property name="manager">${defaultManager}</property>
<property name="sendBufferSize">64</property>
<property name="receiveBufferSize">128</property>
<!-- mysql port -->
<property name="port">3306</property>
<!-- mysql schema -->
<property name="schema">test</property>
<!-- mysql user -->
<property name="user">amoeba</property>
<!-- mysql password -->
<property name="password">123456</property>
</factoryConfig>
<poolConfig class="com.meidusa.amoeba.net.poolable.PoolableObjectPool">
<property name="maxActive">500</property>
<property name="maxIdle">500</property>
<property name="minIdle">10</property>
<property name="minEvictableIdleTimeMillis">600000</property>
<property name="timeBetweenEvictionRunsMillis">600000</property>
<property name="testOnBorrow">true</property>
<property name="testOnReturn">true</property>
<property name="testWhileIdle">true</property>
</poolConfig>
</dbServer>
<dbServer name="abstractServer2" 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>
<!-- mysql port -->
<property name="port">3307</property>
<!-- mysql schema -->
<property name="schema">test</property>
<!-- mysql user -->
<property name="user">amoeba</property>
<!-- mysql password -->
<property name="password">123456</property>
</factoryConfig>
<poolConfig class="com.meidusa.amoeba.net.poolable.PoolableObjectPool">
<property name="maxActive">500</property>
<property name="maxIdle">500</property>
<property name="minIdle">10</property>
<property name="minEvictableIdleTimeMillis">600000</property>
<property name="timeBetweenEvictionRunsMillis">600000</property>
<property name="testOnBorrow">true</property>
<property name="testOnReturn">true</property>
<property name="testWhileIdle">true</property>
</poolConfig>
</dbServer>
<dbServer name="server1" parent="abstractServer1">
<factoryConfig>
<!-- mysql ip -->
<property name="ipAddress">10.0.0.222</property>
</factoryConfig>
</dbServer>
<dbServer name="server2" parent="abstractServer2">
<factoryConfig>
<!-- mysql ip -->
<property name="ipAddress">10.0.0.222</property>
</factoryConfig>
</dbServer>
<dbServer name="master" 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">server1</property>
</poolConfig>
</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>
</amoeba:dbServers>
amoeba.xml
[root@amoeba conf]# cat amoeba.xml
<?xml version="1.0" encoding="gbk"?>
<!DOCTYPE amoeba:configuration SYSTEM "amoeba.dtd">
<amoeba:configuration xmlns:amoeba="http://amoeba.meidusa.com/">
<proxy>
<!-- service class must implements com.meidusa.amoeba.service.Service -->
<service name="Amoeba for Mysql" class="com.meidusa.amoeba.net.ServerableConnectionManager">
<!-- port -->
<property name="port">8066</property>
<!-- bind ipAddress -->
<!-- -->
<property name="ipAddress">10.0.0.226</property>
<property name="manager">${clientConnectioneManager}</property>
<property name="connectionFactory">
<bean class="com.meidusa.amoeba.mysql.net.MysqlClientConnectionFactory">
<property name="sendBufferSize">128</property>
<property name="receiveBufferSize">64</property>
</bean>
</property>
<property name="authenticator">
<bean class="com.meidusa.amoeba.mysql.server.MysqlClientAuthenticator">
<property name="user">root</property>
<property name="password">123456</property>
<property name="filter">
<bean class="com.meidusa.amoeba.server.IPAccessController">
<property name="ipFile">${amoeba.home}/conf/access_list.conf</property>
</bean>
</property>
</bean>
</property>
</service>
<!-- server class must implements com.meidusa.amoeba.service.Service -->
<service name="Amoeba Monitor Server" class="com.meidusa.amoeba.monitor.MonitorServer">
<!-- port -->
<!-- default value: random number
<property name="port">9066</property>
-->
<!-- bind ipAddress -->
<property name="ipAddress">127.0.0.1</property>
<property name="daemon">true</property>
<property name="manager">${clientConnectioneManager}</property>
<property name="connectionFactory">
<bean class="com.meidusa.amoeba.monitor.net.MonitorClientConnectionFactory"></bean>
</property>
</service>
<runtime class="com.meidusa.amoeba.mysql.context.MysqlRuntimeContext">
<!-- proxy server net IO Read thread size -->
<property name="readThreadPoolSize">20</property>
<!-- proxy server client process thread size -->
<property name="clientSideThreadPoolSize">30</property>
<!-- mysql server data packet process thread size -->
<property name="serverSideThreadPoolSize">30</property>
<!-- per connection cache prepared statement size -->
<property name="statementCacheSize">500</property>
<!-- query timeout( default: 60 second , TimeUnit:second) -->
<property name="queryTimeout">60</property>
</runtime>
</proxy>
<!--
Each ConnectionManager will start as thread
manager responsible for the Connection IO read , Death Detection
-->
<connectionManagerList>
<connectionManager name="clientConnectioneManager" class="com.meidusa.amoeba.net.MultiConnectionManagerWrapper">
<property name="subManagerClassName">com.meidusa.amoeba.net.ConnectionManager</property>
<!--
default value is avaliable Processors
<property name="processors">5</property>
-->
</connectionManager>
<connectionManager name="defaultManager" class="com.meidusa.amoeba.net.MultiConnectionManagerWrapper">
<property name="subManagerClassName">com.meidusa.amoeba.net.AuthingableConnectionManager</property>
<!--
default value is avaliable Processors
<property name="processors">5</property>
-->
</connectionManager>
</connectionManagerList>
<!-- default using file loader -->
<dbServerLoader class="com.meidusa.amoeba.context.DBServerConfigFileLoader">
<property name="configFile">${amoeba.home}/conf/dbServers.xml</property>
</dbServerLoader>
<queryRouter class="com.meidusa.amoeba.mysql.parser.MysqlQueryRouter">
<property name="ruleLoader">
<bean class="com.meidusa.amoeba.route.TableRuleFileLoader">
<property name="ruleFile">${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>
<!---->
<property name="writePool">master</property>
<property name="readPool">slave</property>
<property name="needParse">true</property>
</queryRouter>
</amoeba:configuration>
启动：
[root@amoeba bin]# ./amoeba start
log4j:WARN log4j config load completed from file:/usr/local/amoeba/conf/log4j.xml
2015-10-20 21:12:18,932 INFO context.MysqlRuntimeContext - Amoeba for Mysql current versoin=5.1.45-mysql-amoeba-proxy-2.2.0
log4j:WARN ip access config load completed from file:/usr/local/amoeba/conf/access_list.conf
2015-10-20 21:12:19,593 INFO net.ServerableConnectionManager - Amoeba for Mysql listening on /10.0.0.226:8066.
2015-10-20 21:12:19,608 INFO net.ServerableConnectionManager - Amoeba Monitor Server listening on /10.0.0.226:17877.
[root@amoeba bin]# netstat -lntp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 932/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1008/master
tcp 0 0 ::ffff:10.0.0.226:17877 :::* LISTEN 1673/java
tcp 0 0 :::22 :::* LISTEN 932/sshd
tcp 0 0 ::1:25 :::* LISTEN 1008/master
tcp 0 0 ::ffff:10.0.0.226:8066 :::* LISTEN 1673/java
看到以上相关数据，说明已经起动成功。
===========================================================================================
验证：
为了能明显看出效果，这里先暂停主从同步。使用命令slave stop结束。
先进入主库3306[master]，查看测试数据库tudou的test表，内容如下
mysql> select * from test;
+--------+
| name |
+--------+
| shanqi |
| shanqi |
+--------+
再进入从库3307[slave]，查看测试数据库tudou的test表，内容如下
mysql> select * from test;
+--------+
| name |
+--------+
| shanqi |
| shanqi |
| green |
+--------+
这里已事先在从库插入一条主库没有的记录，方便接下来的测试。
使用一台测试机（IP：10.0.0.111）
登陆
[root@mail amoeba]# mysql -uroot -p123456 -P8066 -h10.0.0.226
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1093642553
Server version: 5.1.45-mysql-amoeba-proxy-2.2.0 Source distribution
Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| ccmate |
| mysql |
| performance_schema |
| test |
| tudou |
+--------------------+
6 rows in set (0.00 sec)
查询的时候，amoeba会自动去从库查询。
mysql> select * from tudou.test;
+--------+
| name |
+--------+
| shanqi |
| shanqi |
| green |
+--------+
3 rows in set (0.01 sec)
插入一条记录到测试表tudou.test,然后去主库[master]查询下
mysql> insert into tudou.test values("test");
Query OK, 1 row affected (0.04 sec)
然后去主库[master]查询下
mysql> select * from test;
+--------+
| name |
+--------+
| shanqi |
| shanqi |
| test |
+--------+
3 rows in set (0.00 sec)
到此说明amoeba读写分离成功。
问题：
启动的时候会出现以下问题：
[root@amoeba bin]# ./amoeba start
The stack size specified is too small, Specify at least 228k
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
这里是amoeba 启动脚本判断时有个地方设置过小，需要修改下
[root@amoeba bin]# vi amoeba
找到DEFAULT_OPTS="-server -Xms256m -Xmx256m -Xss128k"这一行，把128改成256即可
本文出自 “坚持就是胜利” 博客，请务必保留此出处http://shanqiu.blog.51cto.com/1354169/1704531
原文地址：http://shanqiu.blog.51cto.com/1354169/1704531
