MySQL如何实现万亿级数据存储？

{"type":"doc","content":[{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"前言","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"业界对系统的高可用有着基本的要求，简单的说，这些要求可以总结为如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"系统架构中不存在单点问题。","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以最大限度的保障服务的可用性。","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"一般情况下系统的高可用可以用几个9来评估。所谓的几个9就是系统可以保证对外提供的服务的时间达到总时间的百分比。例如如果需要达到99.99的高可用，则系统全年发生故障的总时间不能超过52分钟。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"系统高可用架构","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"我们既然需要实现系统的高可用架构，那么，我们到底需要搭建一个什么样的系统架构呢？我们可以将需要搭建的系统架构简化成下图所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/2f/2fc4fa8347705c476e92978e2548d594.jpeg","alt":null,"title":null,"style":null,"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"服务器规划","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"由于我电脑资源有限，我这里在4台服务器上搭建高可用环境，大家可以按照本文将环境扩展到更多的服务器，搭建步骤都是一样的。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| 主机名 | IP地址 | 安装的服务 |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| --------- | --------------- | ---------------------------------------------------- |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| binghe151 | 192.168.175.151 | Mycat、Zookeeper、MySQL、HAProxy、Keepalived、Xinetd |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| binghe152 | 192.168.175.152 | Zookeeper、MySQL |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| binghe153 | 192.168.175.153 | Zookeeper、MySQL |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| binghe154 | 192.168.175.154 | Mycat、MySQL、HAProxy、Keepalived、Xinetd |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"| binghe155 | 192.168.175.155 | MySQL |","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"注意：HAProxy和Keepalived最好和Mycat部署在同一台服务器上。","attrs":{}},{"type":"text","text":"","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"安装MySQL","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"小伙伴们可以关注【冰河技术】微信公众号，参考《","attrs":{}},{"type":"link","attrs":{"href":"https://mp.weixin.qq.com/s?_biz=Mzg3MzE1NTIzNA==&mid=2247483696&idx=1&sn=11b3a10e4a000a809b2e6ffa684968a3&chksm=cee51efdf99297eb496eef7789d8cf09633839d39d8240e0d7ca0a9920226894c68610bd7e35&token=252189671&lang=zhCN#rd","title":""},"content":[{"type":"text","text":"MySQL之——源码编译MySQL8.x+升级gcc+升级cmake（亲测完整版）","attrs":{}}]},{"type":"text","text":"》","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"安装JDK","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"由于Mycat和Zookeeper的运行需要JDK环境的支持，所有我们需要在每台服务器上安装JDK环境。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"这里，我以在binghe151服务器上安装JDK为例，其他服务器的安装方式与在binghe151服务器上的安装方式相同。安装步骤如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（1）到JDK官网下载JDK 1.8版本，JDK1.8的下载地址为：","attrs":{}},{"type":"link","attrs":{"href":"https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html","title":""},"content":[{"type":"text","text":"https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html","attrs":{}}]},{"type":"text","text":"。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"注：我下载的JDK安装包版本为：jdk-8u212-linux-x64.tar.gz，如果JDK版本已更新，大家下载对应的版本即可。","attrs":{}},{"type":"text","text":"","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（2）将下载的jdk-8u212-linux-x64.tar.gz安装包上传到binghe151服务器的/usr/local/src目录下。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（3）解压jdk-8u212-linux-x64.tar.gz文件，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"tar -zxvf jdk-8u212-linux-x64.tar.gz","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（4）将解压的jdk1.8.0_212目录移动到binghe151服务器下的/usr/local目录下，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"mv jdk1.8.0_212/ /usr/local/src/","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（5）配置JDK系统环境变量，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"vim /etc/profile\nJAVA_HOME=/usr/local/jdk1.8.0_212\nCLASS_PATH=.:$JAVA_HOME/lib\nPATH=$JAVA_HOME/bin:$PATH\nexport JAVA_HOME CLASS_PATH PATH","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"使系统环境变量生效，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"source /etc/profile","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（6）查看JDK版本，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# java -version\njava version \"1.8.0_212\"\nJava(TM) SE Runtime Environment (build 1.8.0_212-b10)\nJava HotSpot(TM) 64-Bit Server VM (build 25.212-b10, mixed mode)","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"结果显示，正确输出了JDK的版本信息，说明JDK安装成功。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"安装Mycat","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"下载Mycat 1.6.7.4 Release版本，解压到服务器的/usr/local/mycat目录下，并配置Mycat的系统环境变量，随后，配置Mycat的配置文件，Mycat的最终结果配置如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"schema.xml","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"xml"},"content":[{"type":"text","text":"\n"schema.dtd\">\n\n\n\t\n\t\t\n\t\t\n\t\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\n\t\n\t\n\t \n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\tselect user()\n\t\t\n\t\n\t\n\t\n\t\tselect user()\n\t\t\n\t\n\t\n\t\n\t\tselect user()\n\t\t\n\t\n\t\n\t\n\t\tselect user()\n\t\t\n\t\n\t\n","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"server.xml","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"xml"},"content":[{"type":"text","text":"\n"server.dtd\">\n\n\t\n\t\t1\n druidparser\n\t\t3307\n\t\t3308\n\t\t0\n\t\t0.0.0.0\n\t\tutf8mb4\n\t\t2048\n\t\t2\n\t\t2\n\t\t1800000\n\t\t300\n\t\t0\n\t\t0\n\t\t1\n\t\t1000\n\t\t104857600\n\t\t\n\t\t\n\t\t\tio.mycat.server.interceptor.impl.StatisticsSqlInterceptor\n\t\t\n\t\t\n\t\t\tUPDATE,DELETE,INSERT\n\t\t\n\t\t/tmp/sql.txt\n\t\n\t\n\t\n\t\t\n\t\t\t\n\t\t\n\t\t\n\t\t\ttrue\n\t\t\ttrue\n\t\t\n\t\n\t\n\t\n\t\t1\n\t\tcTwf23RrpBCEmalp/nx0BAKenNhvNs2NSr9nYiMzHADeEDEfwVWlI6hBDccJjNBJqJxnunHFp5ae63PPnMfGYA==\n\t\tshop\n\t\n\n","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"rule.xml","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"xml"},"content":[{"type":"text","text":"\n"rule.dtd\">\n\n\t\n\t\t\n\t\t\tcustomer_id\n\t\t\tmod-long\n\t\t\n\t\n\t\n\t\n\t\t4\n\t\n","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"sequence","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"db","attrs":{}},{"type":"text","text":"conf.properties","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"properties"},"content":[{"type":"text","text":"#sequence stored in datanode\nGLOBAL=mycat\nORDER_MASTER=mycat\nORDER_DETAIL=mycat","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"关于Mycat的配置，仅供大家参考，大家不一定非要按照我这里配置，根据自身业务需要配置即可。本文的重点是实现Mycat的高可用环境搭建。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在MySQL中创建Mycat连接MySQL的账户，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"CREATE USER 'mycat'@'192.168.175.%' IDENTIFIED BY 'mycat';\nALTER USER 'mycat'@'192.168.175.%' IDENTIFIED WITH mysql_native_password BY 'mycat'; \nGRANT SELECT, INSERT, UPDATE, DELETE,EXECUTE ON *.* TO 'mycat'@'192.168.175.%';\nFLUSH PRIVILEGES;","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"安装Zookeeper集群","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"安装配置完JDK后，就需要搭建Zookeeper集群了，根据对服务器的规划，现将Zookeeper集群搭建在“binghe151”、“binghe152”、“binghe153”三台服务器上。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1.下载Zookeeper","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"到Apache官网去下载Zookeeper的安装包，Zookeeper的安装包下载地址为：","attrs":{}},{"type":"link","attrs":{"href":"https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/","title":""},"content":[{"type":"text","text":"https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/","attrs":{}}]},{"type":"text","text":"。具体如下图所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/df/dff8f045ce6bbc5eca9b0871878e11d6.png","alt":null,"title":null,"style":null,"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"也可以在binghe151服务器上执行如下命令直接下载zookeeper-3.5.5。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.5.5/apache-zookeeper-3.5.5-bin.tar.gz","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"执行上述命令就可以直接把apache-zookeeper-3.5.5-bin.tar.gz安装包下载到binghe151服务器上。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"2.安装并配置Zookeeper","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"注意：（1）、（2）、（3）步都是在binghe152服务器上执行的。","attrs":{}},{"type":"text","text":"","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（1）解压Zookeeper安装包","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe151服务器上执行如下命令，将Zookeeper解压到“/usr/local/”目录下，并将Zookeeper目录修改为zookeeper-3.5.5。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"tar -zxvf apache-zookeeper-3.5.5-bin.tar.gz\nmv apache-zookeeper-3.5.5-bin zookeeper-3.5.5","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（2）配置Zookeeper系统环境变量","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"同样，需要在/etc/profile文件中配置Zookeeper系统环境变量，如下：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"ZOOKEEPER_HOME=/usr/local/zookeeper-3.5.5\nPATH=$ZOOKEEPER_HOME/bin:$PATH\nexport ZOOKEEPER_HOME PATH","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"结合之前配置的JDK系统环境变量，/etc/profile，总体配置如下：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"MYSQL_HOME=/usr/local/mysql\nJAVA_HOME=/usr/local/jdk1.8.0_212\nMYCAT_HOME=/usr/local/mycat\nZOOKEEPER_HOME=/usr/local/zookeeper-3.5.5\nMPC_HOME=/usr/local/mpc-1.1.0\nGMP_HOME=/usr/local/gmp-6.1.2\nMPFR_HOME=/usr/local/mpfr-4.0.2\nCLASS_PATH=.:$JAVA_HOME/lib\nLD_LIBRARY_PATH=$MPC_LIB_HOME/lib:$GMP_HOME/lib:$MPFR_HOME/lib:$LD_LIBRARY_PATH\nPATH=$MYSQL_HOME/bin:$JAVA_HOME/bin:$ZOOKEEPER_HOME/bin:$MYCAT_HOME/bin:$PATH\nexport JAVA_HOME ZOOKEEPER_HOME MYCAT_HOME CLASS_PATH MYSQL_HOME MPC_LIB_HOME GMP_HOME MPFR_HOME LD_LIBRARY_PATH PATH","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（3）配置Zookeeper","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"首先，需要将$ZOOKEEPER","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"HOME/conf（$ZOOKEEPER","attrs":{}},{"type":"text","text":"HOME为Zookeeper的安装目录）目录下的zoo_sample.cfg文件修改为zoo.cfg文件。具体命令如下：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"cd /usr/local/zookeeper-3.5.5/conf/\nmv zoo_sample.cfg zoo.cfg","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来修改zoo.cfg文件，修改后的具体内容如下：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"tickTime=2000\ninitLimit=10\nsyncLimit=5\ndataDir=/usr/local/zookeeper-3.5.5/data\ndataLogDir=/usr/local/zookeeper-3.5.5/dataLog\nclientPort=2181\nserver.1=binghe151:2888:3888\nserver.2=binghe152:2888:3888\nserver.3=binghe153:2888:3888","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在Zookeeper的安装目录下创建data和dataLog两个文件夹。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"mkdir -p /usr/local/zookeeper-3.5.5/data\nmkdir -p /usr/local/zookeeper-3.5.5/dataLog","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"切换到新建的data目录下，创建myid文件，具体内容为数字1，如下所示：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"cd /usr/local/zookeeper-3.5.5/data\nvim myid","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"将数字1写入到文件myid。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"3.将Zookeeper和系统环境变量文件复制到其他服务器","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"注意：（1）、（2）步是在binghe151服务器上执行的。","attrs":{}},{"type":"text","text":"","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（1）复制Zookeeper到其他服务器","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"根据对服务器的规划，现将Zookeeper复制到binghe152和binghe53服务器，具体执行操作如下所示：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"scp -r /usr/local/zookeeper-3.5.5/ binghe152:/usr/local/\nscp -r /usr/local/zookeeper-3.5.5/ binghe153:/usr/local/","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"（2）复制系统环境变量文件到其他服务器","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"根据对服务器的规划，现将系统环境变量文件/etc/profile复制到binghe152、binghe153服务器，具体执行操作如下所示：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"scp /etc/profile binghe152:/etc/\nscp /etc/profile binghe153:/etc/","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"上述操作可能会要求输入密码，根据提示输入密码即可。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"4.修改其他服务器上的myid文件","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"修改binghe152服务器上Zookeeper的myid文件内容为数字2，同时修改binghe153服务器上Zookeeper的myid文件内容为数字3。具体如下：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe152服务器上执行如下操作：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"echo \"2\" > /usr/local/zookeeper-3.5.5/data/myid\ncat /usr/local/zookeeper-3.5.5/data/myid\n2","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe153服务器上执行如下操作：","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"echo \"3\" > /usr/local/zookeeper-3.5.5/data/myid\ncat /usr/local/zookeeper-3.5.5/data/myid\n3","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"5.使环境变量生效","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"分别在binghe151、binghe152、binghe153上执行如下操作，使系统环境变量生效。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"source /etc/profile","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"6.启动Zookeeper集群","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"分别在binghe151、binghe152、binghe153上执行如下操作，启动Zookeeper集群。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"zkServer.sh start","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"7.查看Zookeeper集群的启动状态","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe151服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# zkServer.sh status\nZooKeeper JMX enabled by default\nUsing config: /usr/local/zookeeper-3.5.5/bin/../conf/zoo.cfg\nClient port found: 2181. Client address: localhost.\nMode: follower","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe152服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe152 local]# zkServer.sh status\nZooKeeper JMX enabled by default\nUsing config: /usr/local/zookeeper-3.5.5/bin/../conf/zoo.cfg\nClient port found: 2181. Client address: localhost.\nMode: leader","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe153服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe153 ~]# zkServer.sh status\nZooKeeper JMX enabled by default\nUsing config: /usr/local/zookeeper-3.5.5/bin/../conf/zoo.cfg\nClient port found: 2181. Client address: localhost.\nMode: follower","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，binghe151和binghe153服务器上的Zookeeper角色为follower，binghe152服务器上的Zookeeper角色为leader。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"初始化Mycat配置到Zookeeper集群","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"注意：初始化Zookeeper中的数据，是在binghe151服务器上进行的，原因是之前我们已经在binghe151服务器上安装了Mycat。","attrs":{}},{"type":"text","text":"","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1.查看初始化脚本","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在Mycat安装目录下的bin目录中提供了一个init","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"zk","attrs":{}},{"type":"text","text":"data.sh脚本文件，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# ll /usr/local/mycat/bin/\ntotal 384\n-rwxr-xr-x 1 root root 3658 Feb 26 17:10 dataMigrate.sh\n-rwxr-xr-x 1 root root 1272 Feb 26 17:10 init_zk_data.sh\n-rwxr-xr-x 1 root root 15701 Feb 28 20:51 mycat\n-rwxr-xr-x 1 root root 2986 Feb 26 17:10 rehash.sh\n-rwxr-xr-x 1 root root 2526 Feb 26 17:10 startup_nowrap.sh\n-rwxr-xr-x 1 root root 140198 Feb 28 20:51 wrapper-linux-ppc-64\n-rwxr-xr-x 1 root root 99401 Feb 28 20:51 wrapper-linux-x86-32\n-rwxr-xr-x 1 root root 111027 Feb 28 20:51 wrapper-linux-x86-64","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"init","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"zk","attrs":{}},{"type":"text","text":"data.sh脚本文件就是用来向Zookeeper中初始化Mycat的配置的，这个文件会通过读取Mycat安装目录下的conf目录下的配置文件，将其初始化到Zookeeper集群中。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"2.复制Mycat配置文件","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"首先，我们查看下Mycat安装目录下的conf目录下的文件信息，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# cd /usr/local/mycat/conf/\n[root@binghe151 conf]# ll\ntotal 108\n-rwxrwxrwx 1 root root 92 Feb 26 17:10 autopartition-long.txt\n-rwxrwxrwx 1 root root 51 Feb 26 17:10 auto-sharding-long.txt\n-rwxrwxrwx 1 root root 67 Feb 26 17:10 auto-sharding-rang-mod.txt\n-rwxrwxrwx 1 root root 340 Feb 26 17:10 cacheservice.properties\n-rwxrwxrwx 1 root root 3338 Feb 26 17:10 dbseq.sql\n-rwxrwxrwx 1 root root 3532 Feb 26 17:10 dbseq - utf8mb4.sql\n-rw-r--r-- 1 root root 86 Mar 1 22:37 dnindex.properties\n-rwxrwxrwx 1 root root 446 Feb 26 17:10 ehcache.xml\n-rwxrwxrwx 1 root root 2454 Feb 26 17:10 index_to_charset.properties\n-rwxrwxrwx 1 root root 1285 Feb 26 17:10 log4j2.xml\n-rwxrwxrwx 1 root root 183 Feb 26 17:10 migrateTables.properties\n-rwxrwxrwx 1 root root 271 Feb 26 17:10 myid.properties\n-rwxrwxrwx 1 root root 16 Feb 26 17:10 partition-hash-int.txt\n-rwxrwxrwx 1 root root 108 Feb 26 17:10 partition-range-mod.txt\n-rwxrwxrwx 1 root root 988 Mar 1 16:59 rule.xml\n-rwxrwxrwx 1 root root 3883 Mar 3 23:59 schema.xml\n-rwxrwxrwx 1 root root 440 Feb 26 17:10 sequence_conf.properties\n-rwxrwxrwx 1 root root 84 Mar 3 23:52 sequence_db_conf.properties\n-rwxrwxrwx 1 root root 29 Feb 26 17:10 sequence_distributed_conf.properties\n-rwxrwxrwx 1 root root 28 Feb 26 17:10 sequence_http_conf.properties\n-rwxrwxrwx 1 root root 53 Feb 26 17:10 sequence_time_conf.properties\n-rwxrwxrwx 1 root root 2420 Mar 4 15:14 server.xml\n-rwxrwxrwx 1 root root 18 Feb 26 17:10 sharding-by-enum.txt\n-rwxrwxrwx 1 root root 4251 Feb 28 20:51 wrapper.conf\ndrwxrwxrwx 2 root root 4096 Feb 28 21:17 zkconf\ndrwxrwxrwx 2 root root 4096 Feb 28 21:17 zkdownload","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，将Mycat安装目录下的conf目录下的schema.xml文件、server.xml文件、rule.xml文件和sequence","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"db","attrs":{}},{"type":"text","text":"conf.properties文件复制到conf目录下的zkconf目录下，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"cp schema.xml server.xml rule.xml sequence_db_conf.properties zkconf/","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"3.将Mycat配置信息写入Zookeeper集群","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"执行init","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"zk","attrs":{}},{"type":"text","text":"data.sh脚本文件，向Zookeeper集群中初始化配置信息，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 bin]# /usr/local/mycat/bin/init_zk_data.sh \no2020-03-08 20:03:13 INFO JAVA_CMD=/usr/local/jdk1.8.0_212/bin/java\no2020-03-08 20:03:13 INFO Start to initialize /mycat of ZooKeeper\no2020-03-08 20:03:14 INFO Done","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"根据以上信息得知，Mycat向Zookeeper写入初始化配置信息成功。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"4.验证Mycat配置信息是否成功写入Mycat","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"我们可以使用Zookeeper的客户端命令zkCli.sh 登录Zookeeper来验证Mycat的配置信息是否成功写入Mycat。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"首先，登录Zookeeper，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# zkCli.sh \nConnecting to localhost:2181\n###################此处省略N行输出######################\nWelcome to ZooKeeper!\n\nWATCHER::\n\nWatchedEvent state:SyncConnected type:None path:null\n[zk: localhost:2181(CONNECTED) 0] ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，在Zookeeper命令行查看mycat的信息，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[zk: localhost:2181(CONNECTED) 0] ls /\n[mycat, zookeeper]\n[zk: localhost:2181(CONNECTED) 1] ls /mycat\n[mycat-cluster-1]\n[zk: localhost:2181(CONNECTED) 2] ls /mycat/mycat-cluster-1\n[cache, line, rules, schema, sequences, server]\n[zk: localhost:2181(CONNECTED) 3] ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，在/mycat/mycat-cluster-1下存在6个目录，接下来，查看下schema目录下的信息，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[zk: localhost:2181(CONNECTED) 3] ls /mycat/mycat-cluster-1/schema\n[dataHost, dataNode, schema]","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，我们查看下dataHost的配置，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[zk: localhost:2181(CONNECTED) 4] get /mycat/mycat-cluster-1/schema/dataHost\n[{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe151\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe51\",\"url\":\"192.168.175.151:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe152\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe52\",\"url\":\"192.168.175.152:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe153\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe53\",\"url\":\"192.168.175.153:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe154\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe54\",\"url\":\"192.168.175.154:3306\",\"password\":\"root\",\"user\":\"root\"}]}]","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"上面的输出信息格式比较乱，但可以看出是Json格式的信息，我们可以将输出信息进行格式化，格式化后的结果如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"json"},"content":[{"type":"text","text":"[\n {\n \"balance\": 1,\n \"maxCon\": 1000,\n \"minCon\": 10,\n \"name\": \"binghe151\",\n \"writeType\": 0,\n \"switchType\": 1,\n \"slaveThreshold\": 100,\n \"dbType\": \"mysql\",\n \"dbDriver\": \"native\",\n \"heartbeat\": \"select user()\",\n \"writeHost\": [\n {\n \"host\": \"binghe51\",\n \"url\": \"192.168.175.151:3306\",\n \"password\": \"root\",\n \"user\": \"root\"\n }\n ]\n },\n {\n \"balance\": 1,\n \"maxCon\": 1000,\n \"minCon\": 10,\n \"name\": \"binghe152\",\n \"writeType\": 0,\n \"switchType\": 1,\n \"slaveThreshold\": 100,\n \"dbType\": \"mysql\",\n \"dbDriver\": \"native\",\n \"heartbeat\": \"select user()\",\n \"writeHost\": [\n {\n \"host\": \"binghe52\",\n \"url\": \"192.168.175.152:3306\",\n \"password\": \"root\",\n \"user\": \"root\"\n }\n ]\n },\n {\n \"balance\": 1,\n \"maxCon\": 1000,\n \"minCon\": 10,\n \"name\": \"binghe153\",\n \"writeType\": 0,\n \"switchType\": 1,\n \"slaveThreshold\": 100,\n \"dbType\": \"mysql\",\n \"dbDriver\": \"native\",\n \"heartbeat\": \"select user()\",\n \"writeHost\": [\n {\n \"host\": \"binghe53\",\n \"url\": \"192.168.175.153:3306\",\n \"password\": \"root\",\n \"user\": \"root\"\n }\n ]\n },\n {\n \"balance\": 1,\n \"maxCon\": 1000,\n \"minCon\": 10,\n \"name\": \"binghe154\",\n \"writeType\": 0,\n \"switchType\": 1,\n \"slaveThreshold\": 100,\n \"dbType\": \"mysql\",\n \"dbDriver\": \"native\",\n \"heartbeat\": \"select user()\",\n \"writeHost\": [\n {\n \"host\": \"binghe54\",\n \"url\": \"192.168.175.154:3306\",\n \"password\": \"root\",\n \"user\": \"root\"\n }\n ]\n }\n]","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，我们在Mycat的schema.xml文件中配置的dataHost节点的信息，成功写入到Zookeeper中了。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"为了验证Mycat的配置信息，是否已经同步到Zookeeper的其他节点上，我们也可以在binghe152和binghe153服务器上登录Zookeeper，查看Mycat配置信息是否写入成功。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe152服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe152 ~]# zkCli.sh \nConnecting to localhost:2181\n#################省略N行输出信息################\n[zk: localhost:2181(CONNECTED) 0] get /mycat/mycat-cluster-1/schema/dataHost\n[{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe151\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe51\",\"url\":\"192.168.175.151:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe152\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe52\",\"url\":\"192.168.175.152:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe153\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe53\",\"url\":\"192.168.175.153:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe154\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe54\",\"url\":\"192.168.175.154:3306\",\"password\":\"root\",\"user\":\"root\"}]}]","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，Mycat的配置信息成功同步到了binghe152服务器上的Zookeeper中。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe153服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe153 ~]# zkCli.sh \nConnecting to localhost:2181\n#####################此处省略N行输出信息#####################\n[zk: localhost:2181(CONNECTED) 0] get /mycat/mycat-cluster-1/schema/dataHost\n[{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe151\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe51\",\"url\":\"192.168.175.151:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe152\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe52\",\"url\":\"192.168.175.152:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe153\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe53\",\"url\":\"192.168.175.153:3306\",\"password\":\"root\",\"user\":\"root\"}]},{\"balance\":1,\"maxCon\":1000,\"minCon\":10,\"name\":\"binghe154\",\"writeType\":0,\"switchType\":1,\"slaveThreshold\":100,\"dbType\":\"mysql\",\"dbDriver\":\"native\",\"heartbeat\":\"select user()\",\"writeHost\":[{\"host\":\"binghe54\",\"url\":\"192.168.175.154:3306\",\"password\":\"root\",\"user\":\"root\"}]}]","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，Mycat的配置信息成功同步到了binghe153服务器上的Zookeeper中。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"配置Mycat支持Zookeeper启动","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1.在binghe151服务器上配置Mycat","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe151服务器上进入Mycat安装目录的conf目录下，查看文件信息，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# cd /usr/local/mycat/conf/\n[root@binghe151 conf]# ll\ntotal 108\n-rwxrwxrwx 1 root root 92 Feb 26 17:10 autopartition-long.txt\n-rwxrwxrwx 1 root root 51 Feb 26 17:10 auto-sharding-long.txt\n-rwxrwxrwx 1 root root 67 Feb 26 17:10 auto-sharding-rang-mod.txt\n-rwxrwxrwx 1 root root 340 Feb 26 17:10 cacheservice.properties\n-rwxrwxrwx 1 root root 3338 Feb 26 17:10 dbseq.sql\n-rwxrwxrwx 1 root root 3532 Feb 26 17:10 dbseq - utf8mb4.sql\n-rw-r--r-- 1 root root 86 Mar 1 22:37 dnindex.properties\n-rwxrwxrwx 1 root root 446 Feb 26 17:10 ehcache.xml\n-rwxrwxrwx 1 root root 2454 Feb 26 17:10 index_to_charset.properties\n-rwxrwxrwx 1 root root 1285 Feb 26 17:10 log4j2.xml\n-rwxrwxrwx 1 root root 183 Feb 26 17:10 migrateTables.properties\n-rwxrwxrwx 1 root root 271 Feb 26 17:10 myid.properties\n-rwxrwxrwx 1 root root 16 Feb 26 17:10 partition-hash-int.txt\n-rwxrwxrwx 1 root root 108 Feb 26 17:10 partition-range-mod.txt\n-rwxrwxrwx 1 root root 988 Mar 1 16:59 rule.xml\n-rwxrwxrwx 1 root root 3883 Mar 3 23:59 schema.xml\n-rwxrwxrwx 1 root root 440 Feb 26 17:10 sequence_conf.properties\n-rwxrwxrwx 1 root root 84 Mar 3 23:52 sequence_db_conf.properties\n-rwxrwxrwx 1 root root 29 Feb 26 17:10 sequence_distributed_conf.properties\n-rwxrwxrwx 1 root root 28 Feb 26 17:10 sequence_http_conf.properties\n-rwxrwxrwx 1 root root 53 Feb 26 17:10 sequence_time_conf.properties\n-rwxrwxrwx 1 root root 2420 Mar 4 15:14 server.xml\n-rwxrwxrwx 1 root root 18 Feb 26 17:10 sharding-by-enum.txt\n-rwxrwxrwx 1 root root 4251 Feb 28 20:51 wrapper.conf\ndrwxrwxrwx 2 root root 4096 Feb 28 21:17 zkconf\ndrwxrwxrwx 2 root root 4096 Feb 28 21:17 zkdownload","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，在Mycat的conf目录下，存在一个myid.properties文件，接下来，使用vim编辑器编辑这个文件，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"vim myid.properties ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"编辑后的myid.properties文件的内容如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"loadZk=true\nzkURL=192.168.175.151:2181,192.168.175.152:2181,192.168.175.153:2181\nclusterId=mycat-cluster-1\nmyid=mycat_151\nclusterSize=2\nclusterNodes=mycat_151,mycat_154\n#server booster ; booster install on db same server,will reset all minCon to 2\ntype=server\nboosterDataHosts=dataHost1","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"其中几个重要的参数说明如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"loadZk：表示是否加载Zookeeper配置。true：是； false：否；","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"zkURL：Zookeeper的连接地址，多个Zookeeper连接地址以逗号隔开；","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"clusterId：当前Mycat集群的Id标识，此标识需要与Zookeeper中/mycat目录下的目录名称相同，如下所示。","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[zk: localhost:2181(CONNECTED) 1] ls /mycat\n[mycat-cluster-1]","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"myid：当前Mycat节点的id，这里我的命名方式为mycat_前缀加上IP地址的最后三位；","attrs":{}}]}],"attrs":{}},{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"clusterSize：表示Mycat集群中的Mycat节点个数，这里，我们在binghe151和binghe154节点上部署Mycat，所以Mycat节点的个数为2。","attrs":{}}]}],"attrs":{}},{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"clusterNodes：Mycat集群中，所有的Mycat节点，此处的节点需要配置myid中配置的Mycat节点id，多个节点之前以逗号分隔。这里我配置的节点为：mycat","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"151,mycat","attrs":{}},{"type":"text","text":"154。","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"2.在binghe154服务器上安装全新的Mycat","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe154服务器上下载并安装和binghe151服务器上相同版本的Mycat，并将其解压到binghe154服务器上的/usr/local/mycat目录下。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"也可以在binghe151服务器上直接输入如下命令将Mycat的安装目录复制到binghe154服务器上。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# scp -r /usr/local/mycat binghe154:/usr/local","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"注意：别忘了在binghe154服务器上配置Mycat的系统环境变量。","attrs":{}},{"type":"text","text":"","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"3.修改binghe154服务器上的Mycat配置","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe154服务器上修改Mycat安装目录下的conf目录中的myid.properties文件，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"vim /usr/local/mycat/conf/myid.properties","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"修改后的myid.properties文件的内容如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"loadZk=true\nzkURL=192.168.175.151:2181,192.168.175.152:2181,192.168.175.153:2181\nclusterId=mycat-cluster-1\nmyid=mycat_154\nclusterSize=2\nclusterNodes=mycat_151,mycat_154\n#server booster ; booster install on db same server,will reset all minCon to 2\ntype=server\nboosterDataHosts=dataHost1","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"4.重启Mycat","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"分别重启binghe151服务器和binghe154服务器上的Mycat，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"注意：先重启","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe151服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# mycat restart\nStopping Mycat-server...\nStopped Mycat-server.\nStarting Mycat-server...","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe154服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe154 ~]# mycat restart\nStopping Mycat-server...\nStopped Mycat-server.\nStarting Mycat-server...","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe151和binghe154服务器上分别查看Mycat的启动日志，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"STATUS | wrapper | 2020/03/08 21:08:15 | Wrapper Started as Daemon\nSTATUS | wrapper | 2020/03/08 21:08:15 | Launching a JVM...\nINFO | jvm 1 | 2020/03/08 21:08:16 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org\nINFO | jvm 1 | 2020/03/08 21:08:16 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved.\nINFO | jvm 1 | 2020/03/08 21:08:16 | \nINFO | jvm 1 | 2020/03/08 21:08:28 | MyCAT Server startup successfully. see logs in 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then\n/bin/echo -e \"HTTP/1.1 200 OK\\r\\n\"\nelse\n/bin/echo -e \"HTTP/1.1 503 Service Unavailable\\r\\n\"\n/usr/local/mycat/bin/mycat start\nfi","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"为mycat_check.sh文件赋予可执行权限，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"chmod a+x 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install haproxy -y","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"安装完成后，我们需要对HAProxy进行配置，HAProxy的配置文件目录为/etc/haproxy，我们查看这个目录下的文件信息，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# ll /etc/haproxy/\ntotal 4\n-rw-r--r-- 1 root root 3142 Oct 21 2016 haproxy.cfg","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"发现/etc/haproxy/目录下存在一个haproxy.cfg文件。接下来，我们就修改haproxy.cfg文件，修改后的haproxy.cfg文件的内容如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"global\n log 127.0.0.1 local2\n\n chroot /var/lib/haproxy\n pidfile /var/run/haproxy.pid\n maxconn 4000\n user haproxy\n group haproxy\n daemon\n stats socket /var/lib/haproxy/stats\n\ndefaults\n mode http\n log global\n option httplog\n option dontlognull\n option http-server-close\n option redispatch\n retries 3\n timeout http-request 10s\n timeout queue 1m\n timeout connect 10s\n timeout client 1m\n timeout server 1m\n timeout http-keep-alive 10s\n timeout check 10s\n maxconn 3000\n\nlisten admin_status\n bind 0.0.0.0:48800\n stats uri /admin-status\n stats auth admin:admin\nlisten allmycat_service\n bind 0.0.0.0:3366\n mode tcp\n option tcplog\n\t option httpchk OPTIONS * HTTP/1.1\\r\\nHost:\\ www\n balance roundrobin\n server mycat_151 192.168.175.151:3307 check port 48700 inter 5s rise 2 fall 3\n server mycat_154 192.168.175.154:3307 check port 48700 inter 5s rise 2 fall 3\nlisten allmycat_admin\n bind 0.0.0.0:3377\n mode tcp\n option tcplog\n\t option httpchk OPTIONS * HTTP/1.1\\r\\nHost:\\ www\n balance roundrobin\n server mycat_151 192.168.175.151:3308 check port 48700 inter 5s rise 2 fall 3\n server mycat_154 192.168.175.154:3308 check port 48700 inter 5s rise 2 fall 3","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，在binghe151服务器和binghe154服务器上启动HAProxy，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"haproxy -f /etc/haproxy/haproxy.cfg ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，我们使用mysql命令连接HAProxy监听的虚拟IP和端口来连接Mycat，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# mysql -umycat -pmycat -h192.168.175.110 -P3366 --default-auth=mysql_native_password \nmysql: [Warning] Using a password on the command line interface can be insecure.\nWelcome to the MySQL monitor. Commands end with ; or \\g.\nYour MySQL connection id is 2\nServer version: 5.6.29-mycat-1.6.7.4-release-20200228205020 MyCat Server (OpenCloudDB)\n\nCopyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.\n\nOracle is a registered trademark of Oracle Corporation and/or its\naffiliates. Other names may be trademarks of their respective\nowners.\n\nType 'help;' or '\\h' for help. Type '\\c' to clear the current input statement.\n\nmysql> ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，连接Mycat成功。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"安装Keepalived","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1.安装并配置Keepalived","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"直接在binghe151和binghe154服务器上输入如下命令安装Keepalived。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"yum install keepalived -y","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"安装成功后，会在/etc目录下生成一个keepalived目录，接下来，我们在/etc/keepalived目录下配置keepalived.conf文件，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"vim /etc/keepalived/keepalived.conf","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe151服务器配置","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"! Configuration Fileforkeepalived\nvrrp_script chk_http_port {\n script \"/etc/keepalived/check_haproxy.sh\"\n interval 2\n weight 2\n}\nvrrp_instance VI_1 {\n state MASTER \n interface eth0 \n virtual_router_id 51 \n priority 150 \n advert_int 1 \n authentication {\n auth_type PASS\n auth_pass 1111\n}\ntrack_script {\n chk_http_port\n}\nvirtual_ipaddress { \n 192.168.175.110 dev eth0 scope global\n}\n}","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe154服务器配置","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"! Configuration Fileforkeepalived\nvrrp_script chk_http_port {\n script \"/etc/keepalived/check_haproxy.sh\"\n interval 2\n weight 2\n}\nvrrp_instance VI_1 {\n state SLAVE \n interface eth0 \n virtual_router_id 51 \n priority 120\n advert_int 1 \n authentication {\n auth_type PASS\n auth_pass 1111\n}\ntrack_script {\n chk_http_port\n}\nvirtual_ipaddress { \n 192.168.175.110 dev eth0 scope global\n}\n}","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"2.编写检测HAProxy的脚本","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，需要分别在binghe151和binghe154服务器上的/etc/keepalived目录下创建check_haproxy.sh脚本，脚本内容如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"#!/bin/bash\nSTARTHAPROXY=\"/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg\"\nSTOPKEEPALIVED=\"/etc/init.d/keepalived stop\"\n#STOPKEEPALIVED=\"/usr/bin/systemctl stop keepalived\"\nLOGFILE=\"/var/log/keepalived-haproxy-state.log\"\necho \"[check_haproxy status]\" >> $LOGFILE\nA=`ps -C haproxy --no-header |wc -l`\necho \"[check_haproxy status]\" >> $LOGFILE\ndate >> $LOGFILE\nif [ $A -eq 0 ];then\n echo $STARTHAPROXY >> $LOGFILE\n $STARTHAPROXY >> $LOGFILE 2>&1\n sleep 5\nfi\nif [ `ps -C haproxy --no-header |wc -l` -eq 0 ];then\n exit 0\nelse\n exit 1\nfi","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"使用如下命令为check_haproxy.sh脚本授予可执行权限。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"chmod a+x /etc/keepalived/check_haproxy.sh ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"3.启动Keepalived","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"配置完成后，我们就可以启动Keepalived了，分别在binghe151和binghe154服务器上启动Keepalived，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"/etc/init.d/keepalived start","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"查看Keepalived是否启动成功，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe151服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# ps -ef | grep keepalived\nroot 1221 1 0 20:06 ? 00:00:00 keepalived -D\nroot 1222 1221 0 20:06 ? 00:00:00 keepalived -D\nroot 1223 1221 0 20:06 ? 00:00:02 keepalived -D\nroot 93290 3787 0 21:42 pts/0 00:00:00 grep keepalived","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe154服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe154 ~]# ps -ef | grep keepalived\nroot 1224 1 0 20:06 ? 00:00:00 keepalived -D\nroot 1225 1224 0 20:06 ? 00:00:00 keepalived -D\nroot 1226 1224 0 20:06 ? 00:00:02 keepalived -D\nroot 94636 3798 0 21:43 pts/0 00:00:00 grep keepalived","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，两台服务器上的Keepalived服务启动成功。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"4.验证Keepalived绑定的虚拟IP","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，我们分别查看两台服务器上的Keepalived是否绑定了虚拟IP。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe151服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# ip addr\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN \n link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n inet 127.0.0.1/8 scope host lo\n inet6 ::1/128 scope host \n valid_lft forever preferred_lft forever\n2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000\n link/ether 00:0c:29:10:a1:45 brd ff:ff:ff:ff:ff:ff\n inet 192.168.175.151/24 brd 192.168.175.255 scope global eth0\n inet 192.168.175.110/32 scope global eth0\n inet 192.168.175.110/24 brd 192.168.175.255 scope global secondary eth0:1\n inet6 fe80::20c:29ff:fe10:a145/64 scope link \n valid_lft forever preferred_lft forever","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到如下一行代码。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"inet 192.168.175.110/32 scope global eth0","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"说明binghe151服务器上的Keepalived绑定了虚拟IP 192.168.175.110。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe154服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe154 ~]# ip addr\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN \n link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n inet 127.0.0.1/8 scope host lo\n inet6 ::1/128 scope host \n valid_lft forever preferred_lft forever\n2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000\n link/ether 00:50:56:22:2a:75 brd ff:ff:ff:ff:ff:ff\n inet 192.168.175.154/24 brd 192.168.175.255 scope global eth0\n inet 192.168.175.110/24 brd 192.168.175.255 scope global secondary eth0:1\n inet6 fe80::250:56ff:fe22:2a75/64 scope link \n valid_lft forever preferred_lft forever","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到binghe154服务器上的Keepalived并没有绑定虚拟IP。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"5.测试虚拟IP的漂移","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"如何测试虚拟IP的漂移呢？首先，我们停止binghe151服务器上的Keepalived，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"/etc/init.d/keepalived stop","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，查看binghe154服务器上Keepalived绑定虚拟IP的情况，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe154 ~]# ip addr\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN \n link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n inet 127.0.0.1/8 scope host lo\n inet6 ::1/128 scope host \n valid_lft forever preferred_lft forever\n2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000\n link/ether 00:50:56:22:2a:75 brd ff:ff:ff:ff:ff:ff\n inet 192.168.175.154/24 brd 192.168.175.255 scope global eth0\n inet 192.168.175.110/32 scope global eth0\n inet 192.168.175.110/24 brd 192.168.175.255 scope global secondary eth0:1\n inet6 fe80::250:56ff:fe22:2a75/64 scope link \n valid_lft forever preferred_lft forever","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"可以看到，在输出的结果信息中，存在如下一行信息。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":" inet 192.168.175.110/32 scope global eth0","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"说明binghe154服务器上的Keepalived绑定了虚拟IP 192.168.175.110，虚拟IP漂移到了binghe154服务器上。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"6.binghe151服务器上的Keepalived抢占虚拟IP","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，我们启动binghe151服务器上的Keepalived，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"/etc/init.d/keepalived start","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"启动成功后，我们再次查看虚拟IP的绑定情况，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe151服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe151 ~]# ip addr\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN \n link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n inet 127.0.0.1/8 scope host lo\n inet6 ::1/128 scope host \n valid_lft forever preferred_lft forever\n2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000\n link/ether 00:0c:29:10:a1:45 brd ff:ff:ff:ff:ff:ff\n inet 192.168.175.151/24 brd 192.168.175.255 scope global eth0\n inet 192.168.175.110/32 scope global eth0\n inet 192.168.175.110/24 brd 192.168.175.255 scope global secondary eth0:1\n inet6 fe80::20c:29ff:fe10:a145/64 scope link \n valid_lft forever preferred_lft forever","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe154服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe154 ~]# ip addr\n1: lo: mtu 65536 qdisc noqueue state UNKNOWN \n link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n inet 127.0.0.1/8 scope host lo\n inet6 ::1/128 scope host \n valid_lft forever preferred_lft forever\n2: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000\n link/ether 00:50:56:22:2a:75 brd ff:ff:ff:ff:ff:ff\n inet 192.168.175.154/24 brd 192.168.175.255 scope global eth0\n inet 192.168.175.110/24 brd 192.168.175.255 scope global secondary eth0:1\n inet6 fe80::250:56ff:fe22:2a75/64 scope link \n valid_lft forever preferred_lft forever","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"由于binghe151服务器上配置的Keepalived优先级要高于binghe154服务器上的Keepalived，所以，再次启动binghe151服务器上的Keepalived后，binghe151服务器上的Keepalived会抢占虚拟IP。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"配置MySQL主从复制","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"这里，为了简单，","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"我将binghe154和binghe155服务器上的MySQL配置成主从复制","attrs":{}},{"type":"text","text":"，大家也可以根据实际情况，自行配置其他服务器上MySQL的主从复制（注意：我这里配置的是一主一从模式）。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"1.编辑my.cnf文件","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe154服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"server_id = 154\nlog_bin = /data/mysql/log/bin_log/mysql-bin\nbinlog-ignore-db=mysql\nbinlog_format= mixed\nsync_binlog=100\nlog_slave_updates = 1\nbinlog_cache_size=32m\nmax_binlog_cache_size=64m\nmax_binlog_size=512m\nlower_case_table_names = 1\nrelay_log = /data/mysql/log/bin_log/relay-bin\nrelay_log_index = /data/mysql/log/bin_log/relay-bin.index\nmaster_info_repository=TABLE\nrelay-log-info-repository=TABLE\nrelay-log-recovery","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"bulletedlist","content":[{"type":"listitem","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"binghe155服务器","attrs":{}}]}],"attrs":{}}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"server_id = 155\nlog_bin = /data/mysql/log/bin_log/mysql-bin\nbinlog-ignore-db=mysql\nbinlog_format= mixed\nsync_binlog=100\nlog_slave_updates = 1\nbinlog_cache_size=32m\nmax_binlog_cache_size=64m\nmax_binlog_size=512m\nlower_case_table_names = 1\nrelay_log = /data/mysql/log/bin_log/relay-bin\nrelay_log_index = /data/mysql/log/bin_log/relay-bin.index\nmaster_info_repository=TABLE\nrelay-log-info-repository=TABLE\nrelay-log-recovery","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"2.同步两台服务器上MySQL的数据","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe154服务器上只有一个customer","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"db数据库，我们使用mysqldump命令导出customer","attrs":{}},{"type":"text","text":"db数据库，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"[root@binghe154 ~]# mysqldump --master-data=2 --single-transaction -uroot -p --databases customer_db > binghe154.sql\nEnter password: ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，我们查看binghe154.sql文件。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"more binghe154.sql","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在文件中，我们可以找到如下信息。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000042', MASTER_LOG_POS=995;","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"说明当前MySQL的二进制日志文件为mysql-bin.000042，二进制日志文件的位置为995。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，我们将binghe154.sql文件复制到binghe155服务器上，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"scp binghe154.sql 192.168.175.155:/usr/local/src","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe155服务器上，将binghe154.sql脚本导入到MySQL中，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"mysql -uroot -p < /usr/local/src/binghe154.sql","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"此时，完成了数据的初始化。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"3.创建主从复制账号","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe154服务器的MySQL中，创建用于主从复制的MySQL账号，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"mysql> CREATE USER 'repl'@'192.168.175.%' IDENTIFIED BY 'repl123456';\nQuery OK, 0 rows affected (0.01 sec)\n\nmysql> ALTER USER 'repl'@'192.168.175.%' IDENTIFIED WITH mysql_native_password BY 'repl123456'; \nQuery OK, 0 rows affected (0.00 sec)\n\nmysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.168.175.%';\nQuery OK, 0 rows affected (0.00 sec)\n\nmysql> FLUSH PRIVILEGES;\nQuery OK, 0 rows affected (0.00 sec)","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"4.配置复制链路","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"登录binghe155服务器上的MySQL，并使用如下命令配置复制链路。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"mysql> change master to \n > master_host='192.168.175.154',\n > master_port=3306,\n > master_user='repl',\n > master_password='repl123456',\n > MASTER_LOG_FILE='mysql-bin.000042',\n > MASTER_LOG_POS=995;","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"其中，MASTER","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"LOG","attrs":{}},{"type":"text","text":"FILE='mysql-bin.000042', MASTER","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"LOG","attrs":{}},{"type":"text","text":"POS=995 就是在binghe154.sql文件中找到的。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"5.启动从库","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"在binghe155服务器的MySQL命令行启动从库，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"mysql> start slave;","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"查看从库是否启动成功，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"mysql> SHOW slave STATUS \\G\n*************************** 1. row ***************************\n Slave_IO_State: Waiting for master to send event\n Master_Host: 192.168.175.151\n Master_User: binghe152\n Master_Port: 3306\n Connect_Retry: 60\n Master_Log_File: mysql-bin.000007\n Read_Master_Log_Pos: 1360\n Relay_Log_File: relay-bin.000003\n Relay_Log_Pos: 322\n Relay_Master_Log_File: mysql-bin.000007\n Slave_IO_Running: Yes\n Slave_SQL_Running: Yes\n#################省略部分输出结果信息##################","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"结果显示Slave","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"IO","attrs":{}},{"type":"text","text":"Running选项和Slave","attrs":{}},{"type":"text","marks":[{"type":"italic","attrs":{}}],"text":"SQL","attrs":{}},{"type":"text","text":"Running选项的值均为Yes，说明MySQL主从复制环境搭建成功。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"最后，别忘了在binghe155服务器的MySQL中创建Mycat连接MySQL的用户，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"CREATE USER 'mycat'@'192.168.175.%' IDENTIFIED BY 'mycat';\nALTER USER 'mycat'@'192.168.175.%' IDENTIFIED WITH mysql_native_password BY 'mycat'; \nGRANT SELECT, INSERT, UPDATE, DELETE,EXECUTE ON *.* TO 'mycat'@'192.168.175.%';\nFLUSH PRIVILEGES;","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"配置Mycat读写分离","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"修改Mycatd的schema.xml文件，实现binghe154和binghe155服务器上的MySQL读写分离。在Mycat安装目录的conf/zkconf目录下，修改schema.xml文件，修改后的schema.xml文件如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"xml"},"content":[{"type":"text","text":""schema.dtd\">\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\t\n \n \n \n \n \n \n \n \n\t\n \n select user()\n \n \n \n select user()\n \n \n \n select user()\n \n \n \n select user()\n \n\t\t\t\n\t\t\n \n \n","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"保存并退出vim编辑器，接下来，初始化Zookeeper中的数据，如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"/usr/local/mycat/bin/init_zk_data.sh ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"上述命令执行成功后，会自动将配置同步到binghe151和binghe154服务器上的Mycat的安装目录下的conf目录下的schema.xml中。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"接下来，分别启动binghe151和binghe154服务器上的Mycat服务。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"bash"},"content":[{"type":"text","text":"mycat restart","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"如何访问高可用环境","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"此时，整个高可用环境配置完成，上层应用连接高可用环境时，需要连接HAProxy监听的IP和端口。比如使用mysql命令连接高可用环境如下所示。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"codeblock","attrs":{"lang":"sql"},"content":[{"type":"text","text":"[root@binghe151 ~]# mysql -umycat -pmycat -h192.168.175.110 -P3366 --default-auth=mysql_native_password\nmysql: [Warning] Using a password on the command line interface can be insecure.\nWelcome to the MySQL monitor. Commands end with ; or \\g.\nYour MySQL connection id is 2\nServer version: 5.6.29-mycat-1.6.7.4-release-20200228205020 MyCat Server (OpenCloudDB)\n\nCopyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.\n\nOracle is a registered trademark of Oracle Corporation and/or its\naffiliates. Other names may be trademarks of their respective\nowners.\n\nType 'help;' or '\\h' for help. Type '\\c' to clear the current input statement.\n\nmysql> show databases;\n+----------+\n| DATABASE |\n+----------+\n| shop |\n+----------+\n1 row in set (0.10 sec)\n\nmysql> use shop;\nDatabase changed\nmysql> show tables;\n+-----------------------+\n| Tables in shop |\n+-----------------------+\n| customer_balance_log |\n| customer_inf |\n| customer_level_inf |\n| customer_login |\n| customer_login_log |\n| customer_point_log |\n| order_cart |\n| order_customer_addr |\n| order_detail |\n| order_master |\n| product_brand_info |\n| product_category |\n| product_comment |\n| product_info |\n| product_pic_info |\n| product_supplier_info |\n| region_info |\n| serial |\n| shipping_info |\n| warehouse_info |\n| warehouse_proudct |\n+-----------------------+\n21 rows in set (0.00 sec)","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"这里，我只是对binghe154服务器上的MySQL扩展了读写分离环境，大家也可以根据实际情况对其他服务器的MySQL实现主从复制和读写分离，这样，整个高可用环境就实现了HAProxy的高可用、Mycat的高可用、MySQL的高可用、Zookeeper的高可用和Keepalived的高可用。","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"好了，今天就到这儿吧，我是冰河，我们下期见！！","attrs":{}}]},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"重磅福利","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"微信搜一搜【冰河技术】微信公众号，关注这个有深度的程序员，每天阅读超硬核技术干货，公众号内回复【PDF】有我准备的一线大厂面试资料和我原创的超硬核PDF技术文档，以及我为大家精心准备的多套简历模板（不断更新中），希望大家都能找到心仪的工作，学习是一条时而郁郁寡欢，时而开怀大笑的路，加油。如果你通过努力成功进入到了心仪的公司，一定不要懈怠放松，职场成长和新技术学习一样，不进则退。如果有幸我们江湖再见！ ","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"另外，我开源的各个PDF，后续我都会持续更新和维护，感谢大家长期以来对冰河的支持！！","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"heading","attrs":{"align":null,"level":2},"content":[{"type":"text","text":"写在最后","attrs":{}}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"如果你觉得冰河写的还不错，请微信搜索并关注「 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"冰河技术","attrs":{}},{"type":"text","text":" 」微信公众号，跟冰河学习高并发、分布式、微服务、大数据、互联网和云原生技术，「 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"冰河技术","attrs":{}},{"type":"text","text":" 」微信公众号更新了大量技术专题，每一篇技术文章干货满满！不少读者已经通过阅读「 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"冰河技术","attrs":{}},{"type":"text","text":" 」微信公众号文章，吊打面试官，成功跳槽到大厂；也有不少读者实现了技术上的飞跃，成为公司的技术骨干！如果你也想像他们一样提升自己的能力，实现技术能力的飞跃，进大厂，升职加薪，那就关注「 ","attrs":{}},{"type":"text","marks":[{"type":"strong","attrs":{}}],"text":"冰河技术","attrs":{}},{"type":"text","text":" 」微信公众号吧，每天更新超硬核技术干货，让你对如何提升技术能力不再迷茫！","attrs":{}}]}],"attrs":{}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"image","attrs":{"src":"https://static001.geekbang.org/infoq/86/86642f445ccf193620f77650ac1ae2bc.png","alt":null,"title":null,"style":null,"href":null,"fromPaste":true,"pastePass":true}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}}]}