基于amoeba实现mysql数据库的读写分离/负载均衡
更多博文请关注:没有伞的孩子必须努力奔跑(www.xuchanggang.cn)一、Amoeba的简述:[来自百度百科]Amoeba是一个以MySQL为底层数据存储,并对应用提供MySQL协议接
当前测试环境使用的amoeba软件下载地址:
amoeba参考手册:
amoeba项目代码:
(4).简要原理图:
2.我们这里将amoeba相关软件放在/tmp目录下,这里我们先配置JDK
# 解压JDK软件到/usr/local目录下 [root@centos tmp]# tar -xf jdk-7u15-linux-x64.tar.gz -C /usr/local/ # 进入相应目录,并建立java目录 [root@centos tmp]# cd /usr/local/ [root@centos local]# mkdir java # 将解压出来的内容移到java目录 [root@centos local]# mv jdk1.7.0_15/* java # 设置java环境变量 [root@centos local]# echo 'export JAVA_HOME=/usr/local/java' >> ~/.bashrc [root@centos local]# . ~/.bashrc # 测试jdk是否正确安装 [root@centos local]# java -version # ******************************* # 以下这个方法设置JDK[在下面设置amoeba时,会覆盖,所以这里的配置文件,以最下面amoeba的配置为准] [root@centos java]# echo $JAVA_HOME [root@centos java]# vim /etc/profile # 在末尾添加 export JAVA_HOME=/usr/locla/java export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH [root@centos java]# source /etc/profile # *******************************3.配置amoeba中的dbServer.xml(后端mysql 服务器连接配置)
[root@centos java]# cd /tmp/ # 建立相应amoeba目录 [root@centos tmp]# mkdir /usr/local/amoeba # 将压缩包解压到指定目录 [root@centos tmp]# tar -xf amoeba-mysql-binary-2.2.0.tar.gz -C /usr/local/amoeba [root@centos tmp]# cd /usr/local/amoeba/ [root@centos amoeba]# cd conf/ # 准备修改配置文件 #/* 以下部分为注解 #/* Amoeba总共有7个配置文件,分别如下: #/* Amoeba主配置文件($AMOEBA_HOME/conf/amoeba.xml),用来配置Amoeba服务的基本参数,如Amoeba主机地址、端口、认证方式、用于连接的用户名、密码、线程数、超时时间、其他配置文件的位置等。 #/* 数据库服务器配置文件($AMOEBA_HOME/conf/dbServers.xml),用来存储和配置Amoeba所代理的数据库服务器的信息,如:主机IP、端口、用户名、密码等。 #/* 切分规则配置文件($AMOEBA_HOME/conf/rule.xml),用来配置切分规则。 #/* 数据库函数配置文件($AMOEBA_HOME/conf/functionMap.xml),用来配置数据库函数的处理方法,Amoeba将使用该配置文件中的方法解析数据库函数。 #/* 切分规则函数配置文件($AMOEBA_HOME/conf/ruleFunctionMap.xml),用来配置切分规则中使用的用户自定义函数的处理方法。 #/* 访问规则配置文件($AMOEBA_HOME/conf/access_list.conf),用来授权或禁止某些服务器IP访问Amoeba。 #/* 日志规格配置文件($AMOEBA_HOME/conf/log4j.xml),用来配置Amoeba输出日志的级别和方式。 # 配置后端mysql 服务器连接[dbServer.xml] [root@centos conf]# vim dbServers.xml .........................(省略)
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