amoeba 读写分离、负载均衡
1、amoeba配置文件
1.1 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 --> <!--管理公共配置--> <dbServer name="abstractServer" abstractive="true"> <factoryConfig class="com.meidusa.amoeba.mysql.net.MysqlServerConnectionFactory"> <property name="connectionManager">${defaultManager}</property> <property name="sendBufferSize">64</property> <property name="receiveBufferSize">128</property> <!-- mysql port --> <property name="port">3306</property> <!-- mysql schema 约束配置项 一般不动 --> <property name="schema">test</property> <!-- mysql user --> <property name="user">root</property> <property name="password">root</property> </factoryConfig> <!-- 定义连接池 --> <poolConfig class="com.meidusa.toolkit.common.poolable.PoolableObjectPool"> <!-- 最大活跃数量 --> <property name="maxActive">500</property> <!-- 最大空闲数量 --> <property name="maxIdle">500</property> <!-- 最小链接数量,有个扩容效果 --> <property name="minIdle">1</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> <!-- 配置数据库 parent集成上面的公共配置类--> <dbServer name="master" parent="abstractServer"> <factoryConfig> <!-- mysql ip --> <property name="ipAddress">192.168.174.139</property> </factoryConfig> </dbServer> <dbServer name="slave" parent="abstractServer"> <factoryConfig> <!-- mysql ip --> <property name="ipAddress">192.168.174.138</property> </factoryConfig> </dbServer> <!-- 实现负载均衡 主读 --> <dbServer name="multiPool" virtual="true"> <poolConfig class="com.meidusa.amoeba.server.MultipleServerPool"> <!-- Load balancing strategy: 1=ROUNDROBIN 轮询 , 2=WEIGHTBASED 权重 挑选不忙的服务器访问 , 3=HA--> <property name="loadbalance">1</property> <!-- Separated by commas,such as: server1,server2,server1 --> <property name="poolNames">slave,master,slave</property> </poolConfig> </dbServer> </amoeba:dbServers>
1.2编辑amoeba.xml文件
<?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.mysql.server.MySQLService"> <!-- port 端口号 和项目中的properties中的端口号一致 --> <property name="port">8066</property> <!-- bind ipAddress 设置具体哪些ip能连接amoeba --> <!-- <property name="ipAddress">127.0.0.1</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="authenticateProvider"> <bean class="com.meidusa.amoeba.mysql.server.MysqlClientAuthenticator"> <!-- 定义连接amoeba的用户名和密码 --> <property name="user">root</property> <property name="password">root</property> <property name="filter"> <bean class="com.meidusa.toolkit.net.authenticate.server.IPAccessController"> <property name="ipFile">${amoeba.home}/conf/access_list.conf</property> </bean> </property> </bean> </property> </service> <runtime class="com.meidusa.amoeba.mysql.context.MysqlRuntimeContext"> <!-- proxy server client process thread size --> <property name="executeThreadSize">128</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="defaultManager" class="com.meidusa.toolkit.net.MultiConnectionManagerWrapper"> <property name="subManagerClassName">com.meidusa.toolkit.net.AuthingableConnectionManager</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">multiPool</property> <!-- writePool 写操作连接的库 对应dbservers.xml文件里面的name --> <!-- readPool 读操作连接的数据库 对应dbservers.xml文件里面的name--> <property name="writePool">master</property> <property name="readPool">multiPool</property> <property name="needParse">true</property> </queryRouter> </amoeba:configuration>
1.3配置JVM
找到JVM.properties,并找到下面的参数
JVM_OPTIONS="-server -Xms256m -Xmx1024m -Xss256k -XX:PermSize=16m -XX:MaxPermSize=96m"
-Xms256m :jvm初始化内存大小
-Xmx1024m :jvm最大的内存空间
-Xss :单个线程大小,在amoeba中最小为217