云计算实训33——高并发负载均衡项目(eleme)

一、配置一主两从mysql服务器（mysql5.7）

1.主服务器master

下载mysql5.7的包

root@Mysql \~\]# rz -E rz waiting to receive. \[root@Mysql \~\]# ls anaconda-ks.cfg mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz #解压 \[root@Mysql \~\]# tar -zxf mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz #复制 \[root@Mysql \~\]# cp -r mysql-5.7.44-linux-glibc2.12-x86_64 /usr/local/mysql #清理环境 \[root@Mysql \~\]# rm -rf /etc/my.cnf #创建mysql-files \[root@Mysql \~\]# mkdir /usr/local/mysql/mysql-files #创建账户 \[root@Mysql \~\]# useradd -r -s /sbin/nologin mysql #更改用户和组 \[root@Mysql \~\]# chown mysql:mysql /usr/local/mysql/mysql-files/ #修改权限 \[root@Mysql \~\]# chmod 750 /usr/local/mysql/mysql-files/ #初始化 \[root@Mysql \~\]# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql 2024-08-20T07:25:10.817991Z 1 \[Note\] A temporary password is generated for root@localhost: t6\>CSyHJe/s? #查看mysql目录，看是否有data，有data表明初始化成功 \[root@Mysql \~\]# ls /usr/local/mysql/ bin data docs include lib LICENSE man mysql-files README share support-files #复制mysql.server，方便启动服务 \[root@Mysql \~\]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql57 #启动服务 \[root@Mysql \~\]# service mysql57 start Starting MySQL.Logging to '/usr/local/mysql/data/Mysql.err'. SUCCESS! #编辑mysql.conf配置文件 \[root@Mysql \~\]# vim /usr/local/mysql/my.cnf #重新启动服务 \[root@Mysql \~\]# service mysql57 restart Shutting down MySQL.. SUCCESS! Starting MySQL.Logging to '/usr/local/mysql/data/db01-master.err'. SUCCESS! #写入环境变量，方便登录 \[root@Mysql \~\]# sed -i '$aexport PATH=/usr/local/mysql/bin:$PATH' /etc/profile \[root@Mysql \~\]# source /etc/profile #若在写入环境变量时出错，可运行下面指令进行恢复，随后再次执行写入环境变量的指令即可 \[root@Mysql \~\]# export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/us \[root@Mysql \~\]# source /etc/profile #登录mysql #注意这里的密码是前面自动生成的：t6\>CSyHJe/s \[root@Mysql \~\]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \\g. #修改密码 mysql\> set password='1'; Query OK, 0 rows affected (0.00 sec) #退出，使用新密码登录 mysql\> quit Bye #登录 \[root@Mysql \~\]# mysql -uroot -p1 #创建eleme数据库 mysql\> create database if not exists eleme charset utf8mb4; Query OK, 1 row affected (0.00 sec) #使用数据库 mysql\> use eleme; Database changed #创建表t_user mysql\> create table t_user(id int primary key auto_increment,name varchar(45) not null, username varchar(45) not null,password varchar(45) not null,remark varchar(45) not null); Query OK, 0 rows affected (0.01 sec) #查看表 mysql\> desc t_user; +----------+-------------+------+-----+---------+----------------+ \| Field \| Type \| Null \| Key \| Default \| Extra \| +----------+-------------+------+-----+---------+----------------+ \| id \| int(11) \| NO \| PRI \| NULL \| auto_increment \| \| name \| varchar(45) \| NO \| \| NULL \| \| \| username \| varchar(45) \| NO \| \| NULL \| \| \| password \| varchar(45) \| NO \| \| NULL \| \| \| remark \| varchar(45) \| NO \| \| NULL \| \| +----------+-------------+------+-----+---------+----------------+ 5 rows in set (0.01 sec) #向表中添加数据 mysql\>insert into t_user (id,name,username,password,remark)values ("1","超级管理员","admin","admin","超级管理员"); Query OK, 1 row affected (0.00 sec) mysql\>insert into t_user (id,name,username,password,remark)values ("2","普通用户","guest","guest","普通用户"); Query OK, 1 row affected (0.01 sec) #查看表中数据 mysql\> select \* from t_user; +----+-----------------+----------+----------+-----------------+ \| id \| name \| username \| password \| remark \| +----+-----------------+----------+----------+-----------------+ \| 1 \| 超级管理员 \| admin \| admin \| 超级管理员 \| \| 2 \| 普通用户 \| guest \| guest \| 普通用户 \| +----+-----------------+----------+----------+-----------------+ 2 rows in set (0.00 sec) #为从服务器添加用户 mysql\> create user 'Slave01'@'%' identified by '1'; mysql\> create user 'Slave02'@'%' identified by '1'; #授权 mysql\> grant replication slave on \*.\* to 'Slave01'@'%'; mysql\> grant replication slave on \*.\* to 'Slave02'@'%'; #刷新 mysql\> flush privileges; #查看 mysql\> select host,user from mysql.user; +-----------+---------------+ \| host \| user \| +-----------+---------------+ \| % \| Slave01 \| \| % \| Slave02 \| \| localhost \| mysql.session \| \| localhost \| mysql.sys \| \| localhost \| root \| +-----------+---------------+ 5 rows in set (0.00 sec) #锁表 mysql\> flush tables with read lock; Query OK, 0 rows affected (0.00 sec) #查看二进制文件 mysql\> show master status; +---------------+----------+--------------+------------------+-------------------+ \| File \| Position \| Binlog_Do_DB \| Binlog_Ignore_DB \| Executed_Gtid_Set \| +---------------+----------+--------------+------------------+-------------------+ \| binlog.000001 \| 2594 \| \| \| \| +---------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec) 2.从服务器Slave01 #使用scp将master上的mysql5.7包传给slave \[root@Slave01 \~\]# scp root@192.168.1.29:\~/mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz ./ #解压 \[root@Slave01 \~\]# tar -xvf mysql-5.7.44-linux-glibc2.12-x86_64.tar.gz #复制目录 \[root@Slave01 \~\]# cp -r mysql-5.7.44-linux-glibc2.12-x86_64 /usr/local/mysql #在master和slave上下载rsync \[root@Slave01 \~\]# yum -y install rsync #在master操作： \[root@Mysql \~\]# yum -y install rsync #删除auto.cnf \[root@Mysql \~\]# cd /usr/local/mysql/data/ \[root@Mysql data\]# ls auto.cnf ca.pem eleme ib_logfile1 Mysql.pid server-cert.pem binlog.000001 client-cert.pem ib_buffer_pool ibtmp1 performance_schema server-key.pem binlog.index client-key.pem ibdata1 mysql private_key.pem sys ca-key.pem db01-master.err ib_logfile0 Mysql.err public_key.pem 删除文件 \[root@Mysql data\]# rm -rf auto.cnf #同步数据 \[root@Mysql \~\]# rsync -av /usr/local/mysql/data root@192.168.1.30:/usr/local/mysql/ #回到slave操作： \[root@Slave01 \~\]# #查看同步 \[root@Slave01 \~\]# ls /usr/local/mysql/ bin data docs include lib LICENSE man README share support-files #若存在data目录，则同步成功 \[root@Slave01 \~\]# #清理环境 \[root@Slave01 \~\]# rm -rf /etc/my.cnf \[root@Slave01 \~\]# mkdir /usr/local/mysql/mysql-files \[root@Slave01 \~\]# useradd -r -s /sbin/nologin mysql \[root@Slave01 \~\]# chown mysql:mysql /usr/local/mysql/mysql-files/ \[root@Slave01 \~\]# chmod 750 /usr/local/mysql/mysql-files/ \[root@Slave01 \~\]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql57 \[root@Slave01 \~\]# service mysql57 start Starting MySQL.Logging to '/usr/local/mysql/data/Slave01.err'. SUCCESS! #编辑配置文件 \[root@Slave01 \~\]# vim /usr/local/mysql/my.cnf \[mysqld

basedir=/usr/local/mysql

datadir=/usr/local/mysql/data

socket=/tmp/mysql.sock

port=3310

log-error=/usr/local/mysql/data/db01-slave.err

relay-log=/usr/local/mysql/data/relaylog

server-id=11

character_set_server=utf8mb4

#重启

root@Slave01 \~\]# service mysql57 restart Shutting down MySQL.. SUCCESS! Starting MySQL.Logging to '/usr/local/mysql/data/db01-slave.err'. SUCCESS! #修改环境变量 \[root@Slave01 \~\]# sed -i '$aexport PATH=/usr/local/mysql/bin:$PATH' /etc/profile #让配置文件生效 \[root@Slave01 \~\]# source /etc/profile \[root@Slave01 \~\]# mysql -uroot -p #指定主服务器，实现数据同步 mysql\> change master to -\> master_host='192.168.1.29', -\> master_user='Slave01', -\> master_password='1', -\> master_port=3306, -\> master_log_file='binlog.000001', -\> master_log_pos=2594; Query OK, 0 rows affected, 2 warnings (0.27 sec) #启动slave mysql\> start slave; Query OK, 0 rows affected (0.00 sec) #查看slave状态 mysql\> show slave status\\G; \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* 1. row \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* Slave_IO_State: Connecting to master Master_Host: 192.168.1.29 Master_User: Slave01 Master_Port: 3306 Connect_Retry: 60 Master_Log_File: binlog.000001 Read_Master_Log_Pos: 2594 Relay_Log_File: relaylog.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: binlog.000001 Slave_IO_Running: Connecting Slave_SQL_Running: Yes #发现为连接状态，退出 mysql\> quit #回到master,解锁 \[root@Mysql \~\]# service mysql57 restart \[root@Mysql \~\]# mysql -uroot -p1 #解锁 mysql\> unlock tables; Query OK, 0 rows affected (0.00 sec) #重新获取二进制文件 mysql\> show master status; +---------------+----------+--------------+------------------+-------------------+ \| File \| Position \| Binlog_Do_DB \| Binlog_Ignore_DB \| Executed_Gtid_Set \| +---------------+----------+--------------+------------------+-------------------+ \| binlog.000002 \| 458 \| \| \| \| +---------------+----------+--------------+------------------+-------------------+ 1 row in set (0.00 sec) #回到slave操作 #获得公钥 \[root@Slave01 \~\]# mysql -uSlave01 -p1 -h 192.168.1.29 -P3306 --get-server-public-key mysql\> quit Bye #登录 \[root@Slave01 \~\]# mysql -uroot -p #停止slave mysql\> stop slave; Query OK, 0 rows affected (0.00 sec) #与master建立连接 mysql\> change master to -\> master_host='192.168.1.29', -\> master_user='Slave01', -\> master_password='1', -\> master_port=3306, -\> master_log_file='binlog.000002', -\> master_log_pos=458; Query OK, 0 rows affected, 2 warnings (0.02 sec) #启动slave mysql\> start slave; Query OK, 0 rows affected (0.01 sec) #查看 mysql\> show slave status\\G; \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* 1. row \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* Slave_IO_State: Waiting for master to send event Master_Host: 192.168.1.29 Master_User: Slave01 Master_Port: 3306 Connect_Retry: 60 Master_Log_File: binlog.000002 Read_Master_Log_Pos: 458 Relay_Log_File: relaylog.000002 Relay_Log_Pos: 317 Relay_Master_Log_File: binlog.000002 Slave_IO_Running: Yes Slave_SQL_Running: Yes #发现为ok状态，连接成功 #验证同步数据 mysql\> show databases; +--------------------+ \| Database \| +--------------------+ \| information_schema \| \| eleme \| \| mysql \| \| performance_schema \| \| sys \| +--------------------+ 5 rows in set (0.01 sec) mysql\> use eleme; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql\> select \* from t_user; +----+-----------------+----------+----------+-----------------+ \| id \| name \| username \| password \| remark \| +----+-----------------+----------+----------+-----------------+ \| 1 \| 超级管理员 \| admin \| admin \| 超级管理员 \| \| 2 \| 普通用户 \| guest \| guest \| 普通用户 \| +----+-----------------+----------+----------+-----------------+ 2 rows in set (0.00 sec) 3.从服务器Slave02 配置步骤与Slave01一样 二、搭建mycat 首先下载并且解压安装包 ![](https://i-blog.csdnimg.cn/direct/f8c3fd6fa0a54b9eaa0dcc8111c24d48.png) 然后复制目录并且改名 \[root@mycat \~\]# cp -r jdk1.8.0_192/ /usr/local/jdk \[root@mycat \~\]# cp -r mycat/ /usr/local/ 查看并且配置jdk环境 \[root@mycat \~\]# sed -i '$aexport JAVA_HOME=/usr/local/jdk' /etc/profile \[root@mycat \~\]# source /etc/profile \[root@mycat \~\]# sed -i '$aexport PATH=$PATH:$JAVA_HOME/bin' /etc/profile \[root@mycat \~\]# source /etc/profile #配置文件 vim /usr/local/mycat/conf/server.xml "ln"是master创建用于被访问的 去master机器创建 create user 'ln'@'%' identified by '1'; grant all on \*.\* to 'ln'@'%'; flush privileges; #编辑配置文件 vim /usr/local/mycat/conf/schema.xml ![](https://i-blog.csdnimg.cn/direct/efef5f377a0840229d07d8833a09dc29.png) #启动服务 /usr/local/mycat/bin/mycat start #检查启动的是否成功 root@mycat \~\]# netstat -lnput\|grep 8066 tcp6 0 0 :::8066 :::\* LISTEN 4547/java #开启8080端口和3310端口 firewall-cmd --zone=public --add-port=8080/tcp --permanent firewall-cmd --zone=public --add-port=3310/tcp --permanent firewall-cmd --reload 三、搭建Java_static 下载下图软件包并且解压jdk包 ![](https://i-blog.csdnimg.cn/direct/03a51f46581940d8ab0784d93ff344b5.png) 解压完成以后cp jdk 目录，复制到/usr/local底下 cp -r jdk-17.0.12/ /usr/local/jdk 再部署环境变量 vim /etc/profile ![](https://i-blog.csdnimg.cn/direct/6db4e3bbf6cc4fa699abd2d890cb838f.png) 检验Java版本 ![](https://i-blog.csdnimg.cn/direct/ce31b155305f4b79b7dd42e4b5cfeee7.png) 然后创建一个文件 vim application.yml ![](https://i-blog.csdnimg.cn/direct/7facbe4e20834d0c9cfdc50eecb161a9.png) 再上传一个包直接用Java运行它 ![](https://i-blog.csdnimg.cn/direct/48d651912c49407fa2708fb630de6660.png) java -jar eleme_server-0.0.1-SNAPSHOT.jar ![](https://i-blog.csdnimg.cn/direct/0786491581bf4b94b75b3307983d7a5a.png) 然后去浏览器访问Java_static的地址加8080端口 ![](https://i-blog.csdnimg.cn/direct/be91a163edac4f8e909d6cd88647d179.png) 账户密码都用admin测试 ![](https://i-blog.csdnimg.cn/direct/a567eb522711421ab3c0f193178f9715.png) 登录成功！ 四、使⽤lvs代理java服务 1. ds (1) 挂载vip ifconfig ens33:0 192.168.1.41 broadcast 192.168.1.41 netmask 255.255.255.255 up (2) 为vip添加路由 route add 192.168.1.41 dev ens33:0 (3)安装ipvsadm yum -y install ipvsadm ipvsadm -Ln ipvsadm -C (4) 设置负载均衡规则 ipvsadm -A -t 192.168.1.41:8080 -s rr ipvsadm -a -t 192.168.1.41:8080 -r 192.168.1.26 -g ipvsadm -a -t 192.168.1.41:8080 -r 192.168.1.27 -g 2. rs (1)挂载vip ifconfig lo:0 192.168.1.41 broadcast 192.168.1.41 netmask 255.255.255.255 up (2)为vip 添加路由 route add 192.168.1.41 dev lo:0 (3)抑制接受请求 echo 1 \> /proc/sys/net/ipv4/conf/lo/arp_ignore echo 2 \> /proc/sys/net/ipv4/conf/lo/arp_announce echo 1 \> /proc/sys/net/ipv4/conf/all/arp_ignore echo 2 \>/proc/sys/net/ipv4/conf/all/arp_announce 五、Nginx 代理端⼝ #设置权重 upstream javagroup { Server localhost:8080 weight=95; Server 192 168.71.15:8080 weight=3 Server 192.168.71.16:8080 weight=2; } #进入配置文件修改下图内容 ![](https://i-blog.csdnimg.cn/direct/1495d2ab741a4d739f0b212792680ca0.png)