Amoeba-mysql開源項目高可用讀寫分離

 Amoeba爲阿里的工程師的開源項目，實現高併發集羣讀寫分離而開發的
轉載請原創作者：QQ：87180023

前提：master和slave已經做好了主從複製

下載：

jdk-6u3-linux-i586.bin

# wget http://www.mkongjian.com/soft/lnmp/jdk-6u3-linux-i586.bin

amoeba-mysql-binary-2.1.0-RC5.tar.gz

# wget http://www.mkongjian.com/soft/lnmp/amoeba-mysql-binary-2.1.0-RC5.tar.gz

安裝jdk

# chmod +x jdk-6u3-linux-i586.bin

# ./jdk-6u3-linux-i586.bin

# mv jdk1.6.0_03 /usr/local/java

# vim /etc/profile

在最後添加

export JAVA_HOME=/usr/local/java

export JAVA_BIN=/usr/local/java/bin

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH==.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

export JAVA_HOME JAVA_BIN PATH CLASSPATH

# source /etc/profile

# mkdir /usr/local/amoeba

# tar zxvf amoeba-mysql-binary-2.1.0-RC5.tar.gz -C /usr/local/amoeba/

# vim dbServers.xml

#以下是我的配置文件

#**************************************************************************************

<?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">dbname</property>

<!-- mysql user -->

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

<!--  mysql password -->

<property name="password">password</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="testWhileIdle">true</property>

</poolConfig>

</dbServer>

<dbServer name="server1"  parent="abstractServer">

<factoryConfig>

<!-- mysql ip -->

<property name="ipAddress">192.168.10.231</property>

</factoryConfig>

</dbServer>

        <dbServer name="server2"  parent="abstractServer">

                <factoryConfig>

                        <!-- mysql ip -->

                        <property name="ipAddress">192.168.10.211</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">server1,server2</property>

</poolConfig>

</dbServer>

</amoeba:dbServers>

#****************************************************************************************************

# vim 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">3306</property>

<!-- bind ipAddress -->

<!-- -->

<property name="ipAddress">192.168.10.225</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">user</property>

<property name="password">password</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">192.168.10.225</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">server1</property>

<!--

<property name="writePool">server1</property>

<property name="readPool">server1,server2,server2,server2</property>

-->

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

</queryRouter>

</amoeba:configuration>

#************************************************************************************************************

注意：我這裏定義"readPool">server1,server2,server2,server2這個是1：3的意思，讓大多數讀的直接在server2去

轉載請原創作者：QQ：87180023

定義amoeba內存參數,我這裏定義了最大2G的併發佔用連接

# vim /usr/local/amoeba/bin/amoeba

將 DEFAULT_OPTS="-server -Xms256m -Xmx256m -Xss128k"

修改爲 DEFAULT_OPTS="-server -Xms1024m -Xmx2048m -Xss512k"

啓動文件，最好以後臺方式啓動

nohup /usr/local/amoeba/bin/amoeba start &

停止amoeba

/usr/local/amoeba/bin/amoeba stop