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