在OneProxy的基础上实行MySQL读写分离与负载均衡

吾爱主题阅读：181 2024-04-05 14:20:45 评论：0

简介

Part1:写在最前

OneProxy平民软件完全自主开发的分布式数据访问层，帮助用户在MySQL/PostgreSQL集群上快速搭建支持分库分表的分布式数据库中间件，也是一款具有SQL白名单（防SQL注入）及IP白名单功能的SQL防火墙软件。采用与MySQL Proxy一致的反向协议输出模式，对应用非常简单和透明易用，让用户畏惧的数据库故障切换（Failover）、读写分离（Read/Write Split）、分库分表（Horizontal Partitioning）等复杂方案变得极其简单可控！基于Libevent机制实现，单个实例可以实现25万的SQL转发能力，用一个OneProxy节点可以带动整个MySQL集群，为业务发展贡献一份力量。

Part2:环境简介

HE1:192.168.1.248 slave1

HE2:192.168.1.249 slave2

HE3:192.168.1.250 Master

HE4:192.168.1.251 Oneproxy

环境构建

Part1:安装Oneproxy

1 2 3 [root@HE4 ~]# tar xvf oneproxy-rhel5-linux64-v5.8.5-ga.tar.gz [root@HE4 oneproxy]# ls bin conf demo.sh log oneproxy.service README testadmin.sql testautocommit.sql testproxy.sql trantest.sql

Part2:构建主从环境

本文的架构是一主两从，HE3作为Master，HE1,HE2作为Slave。主从的构建不是本文的重点，需要的可移步：

如何快速使用mysqlreplicate搭建MySQL主从

Part3:配置Oneproxy

目录中的demo是初次启动脚本，oneproxy.service是启停脚本,在新版的oneproxy中，conf文件夹的proxy.cnf为配置文件

1 2 3 4 5 6 [root@HE4 oneproxy]# cat demo.sh #/bin/bash # export ONEPROXY_HOME=/root/oneproxy # valgrind --leak-check=full ${ONEPROXY_HOME}/bin/oneproxy --defaults-file=${ONEPROXY_HOME}/conf/proxy.conf

我们将demo.sh中的ONEPROXY_HOME变更为解压oneproxy时所在的目录

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 [root@HE4 oneproxy]# cat oneproxy.service #!/bin/bash # chkconfig: - 30 21 # description: OneProxy service. # Source Function Library . /etc/init.d/functions # OneProxy Settings ONEPROXY_HOME=/root/oneproxy ONEPROXY_SBIN= "${ONEPROXY_HOME}/bin/oneproxy" ONEPROXY_CONF= "${ONEPROXY_HOME}/conf/proxy.conf" ONEPROXY_PID= "${ONEPROXY_HOME}/log/oneproxy.pid" RETVAL=0 prog= "OneProxy" start() { echo -n $ "Starting $prog ... " daemon $ONEPROXY_SBIN --defaults-file=$ONEPROXY_CONF RETVAL=$? echo } stop() { echo -n $ "Stopping $prog ... " if [ -e ${ONEPROXY_PID} ]; then daemon kill - INT $(cat ${ONEPROXY_PID}) RETVAL=$? fi echo } restart(){ stop sleep 1 start } case "$1" in start) start ;; stop) stop ;; restart) restart ;; *) echo $ "Usage: $0 {start|stop|restart}" RETVAL=1 esac exit $RETVAL

同时，将oneproxy.service中的ONEPROXY_HOME也改为解压时的目录

进入oneproxy中的bin目录，使用mysqlpwd对密码进行加密

1 2 3 4 5 6 7 8 9 [root@HE4 oneproxy]# cd bin/ [root@HE4 bin]# ls mysqlpwd oneproxy [root@HE4 bin]# ./mysqlpwd MANAGER 1C6D087BA5D2607A27DECB2F2AFE247E911E877A

编辑proxy.cnf中的内容

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 [root@HE4 conf]# cat proxy.conf [oneproxy] keepalive = 1 event-threads = 4 proxy- group -policy.2 = test: read -slave log-file = log/oneproxy.log pid-file = log/oneproxy.pid lck-file = log/oneproxy.lck proxy-auto-readonly = 1 proxy- forward -clientip = 1 proxy-trans-debug = 1 proxy-address = :3307 mysql-version = 5.7.16 proxy-master-addresses.1 = 192.168.1.250:3306@test proxy-slave-addresses.2 = 192.168.1.248:3306@test proxy-slave-addresses.3 = 192.168.1.249:3306@test proxy- user -list = sys_admin/1C6D087BA5D2607A27DECB2F2AFE247E911E877A@test proxy- user - group = test:sys_admin/1C6D087BA5D2607A27DECB2F2AFE247E911E877A@test proxy-part-template = conf/template.txt proxy-part-tables.1 = conf/part.txt proxy-part-tables.2 = conf/part2.txt proxy-part-tables.3 = conf/cust1.txt proxy-charset = utf8_bin proxy-secure-client = 127.0.0.1 # proxy-license = 32C54560E06EFF3E proxy-httpserver = :8080 proxy-httptitle = OneProxy Monitor

Part4:启动Oneproxy

1 2 3 4 5 6 7 [root@HE4 oneproxy]# ./demo.sh [root@HE4 oneproxy]# ./oneproxy.service restart Stopping OneProxy ... [ OK ] Starting OneProxy ... [ OK ]

测试

Part1:Oneproxy状态校验

浏览器打开192.168.1.251:8080端口能够看到oneproxy的管理页面

这里可以看到主从的各种状态信息。

Part2:负载均衡与读写分离校验

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "select @@hostname;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE1 | + ------------+ [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "select @@hostname;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE2 | + ------------+ [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "select @@hostname;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE1 | + ------------+ [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "select @@hostname;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE2 | + ------------+ [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "select @@hostname;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE1 | + ------------+ [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "begin;select @@hostname;commit;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE3 | + ------------+ [root@HE1 ~]# mysql -usys_admin -pMANAGER -h192.168.1.251 -P3307 -e "begin;select @@hostname;commit;" mysql: [Warning] Using a password on the command line interface can be insecure. + ------------+ | @@hostname | + ------------+ | HE3 | + ------------+