amoeba实现读写分离

amoeba的运行环境依靠java的jdk；

下面执行amoeba的安装不走

# mkdir /usr/local/src/amoeba

上传文件：amoeba-mysql-binary-2.2.0.tar.gz

# tar –xvf amoeba-mysql-binary-2.2.0.tar.gz  

bin     执行文件目录

conf    配置文件目录

1.1.1    配置amoeba

配置主、从mysql服务器链接信息等，下面配置文件中红色字体为需要注意或修改的地方；

1.1.1.1dbServers.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="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>

             

           <!-- mysql port -->

           <property name="port">3306</property>

          

           <!-- mysql schema -->

           <property name="schema">test</property>

          

           <!-- mysql user -->

           <property name="user">root</property>

          

           <!--  mysql password -->

           <property name="password">root</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="master"  parent="abstractServer">

       <factoryConfig>

           <!-- mysql ip -->

           <property name="ipAddress">192.168.170.43</property>

       </factoryConfig>

    </dbServer>

   

    <dbServer name="slave"  parent="abstractServer">

       <factoryConfig>

           <!-- mysql ip -->

           <property name="ipAddress">192.168.170.85</property>

       </factoryConfig>

    </dbServer>

   

    <dbServer name="multiPool" 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">master,slave</property>

       </poolConfig>

    </dbServer>

</amoeba:dbServers>

1.1.1.2amoeba.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">127.0.0.1</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">root</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">multiPool</property>

 

       <property name="needParse">true</property>

    </queryRouter>

</amoeba:configuration>

1.1.2    打开8066端口

# /sbin/iptables -I INPUT -p tcp --dport 8066 -j ACCEPT

# /etc/rc.d/init.d/iptables save      #修改生效

# /etc/init.d/iptables status         #查看配置

1.1.3    启动amoeba

# ./bin/amoeba start 或 # ./bin/amoeba start &

 

1.1.4    停止amoeba

# ./bin/amoeba stop

1.1.5    问题

1、JAVA_HOME不认

jdk安装后测试无问题java –version，但启动amoeba就是报错JAVA_HOME找不到。就修改/amoeba/bin/amoeba文件，在文件最开头直接写入JAVA_HOME环境变量。

JAVA_HOME=/usr/local/src/java/jdk1.7.0_51

2、java栈设置小

默认配置Xss比较小128k，启动时提示太小，则修改/amoeba/bin/amoeba文件，修改为256k即可。

DEFAULT_OPTS="-server -Xms256m -Xmx256m -Xss256k"

3、amoeba连接的mysql都要开放访问权限

否则访问拒绝，无法执行SQL语句