lnmt服务的搭建及其负载轮询
1、前提条件
准备三台服务器
| 服务器 | ip | 部署 |
|---|---|---|
| 服务端 | 192.168.7.10 | mysql、nginx、tomcat |
| 客户端1 | 192.168.7.11 | tomcat9 |
| 客户端2 | 192.168.7.12 | tomcat9 |
三台同时关闭防火墙
# systemctl stop firewalld
# systemctl disable firewalld
# setent 0
2、server端部署
2.1安装nginx
nginx加入systemctl启动脚本：https://files.cnblogs.com/files/liuzhijun666/nginx启动脚本.rar
nginx 下载地址： ：http://nginx.org/download/nginx-1.14.0.tar.gz
# yum -y install pcre-devel openssl openssl-devel gd-devel lrzsz
# yum -y groups mark install 'Development Tools'
# useradd -r -M -s /sbin/nologin nginx
//创建日志目录
# mkdir -p /var/log/nginx
# chown -R nginx.nginx /var/log/nginx
# wget http://nginx.org/download/nginx-1.14.0.tar.gz
# tar -xf nginx-1.14.0.tar.gz
nginx-1.14.0.tar.gz nginx-1.14.0
# pwd
/root/nginx-1.14.0
# ./configure --prefix=/usr/local/nginx //编译
--user=nginx
--group=nginx
--with-debug
--with-http_ssl_module
--with-http_realip_module
--with-http_image_filter_module
--with-http_gunzip_module
--with-http_gzip_static_module
--with-http_stub_status_module
--http-log-path=/var/log/nginx/access.log
--error-log-path=/var/log/nginx/error.log
# make -j $(grep 'processor' /proc/cpuinfo | wc -l) && make install //安装
# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
# cd /usr/local/nginx/sbin/
# ls
nginx
# cd /etc/init.d
# rz //上传ngin的启动脚本
# ls
... nginx .....
# chmod +x nginx
# source nginx //执行该脚本
# systemctl restart nginx
# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:80 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
3.2安装mysql
下载地址： https://dev.mysql.com/downloads/mysql/
# yum -y install ncurses-devel openssl-devel openssl cmake mariadbdevel
# tar xf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
# pwd
/usr/src
# cd /usr/local
# ln -sv mysql-5.7.22-linux-glibc2.12-x86_64/ mysql
# groupadd -r mysql //mysql创建组和用户
# useradd -M -s /sbin/nologin -g mysql mysql
# chown -R mysql.mysql mysql
# echo "export PATH=/usr/local/mysql/bin/:$PATH" > /etc/profile.d/mysql.sh //环境变量
# source /etc/profile.d/mysql.sh
# mkdir /opt/data //生成数据库目录
# chown -R mysql.mysql /opt/data/
# mysqld --initialize --user=mysql --datadir=/opt/data/ //初始化数据库
2020-04-26T13:28:47.194209Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2020-04-26T13:28:47.739448Z 0 [Warning] InnoDB: New log files created, LSN=45790
2020-04-26T13:28:47.878674Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2020-04-26T13:28:48.064606Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: dc2dc2c2-87c1-11ea-b320-000c29361d6b.
2020-04-26T13:28:48.065569Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2020-04-26T13:28:48.066537Z 1 [Note] A temporary password is generated for root@localhost: ,8wypuC8Swht //密码
# cd
# echo ",8wypuC8Swht" > passwd.txt //保存密码
# vim /etc/my.cnf //编写配置文件
# cat /etc/my.cnf
[mysqld]
basedir = /usr/local/mysql
datadir = /opt/data
socket = /tmp/mysql.sock
port = 3306
pid-file = /opt/data/mysql.pid
user = mysql
skip-name-resolve
# cp -a /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
# sed -ri 's#^(datadir=).*#1/opt/data#g' /etc/init.d/mysqld
# sed -ri 's#^(basedir=).*#1/usr/local/mysql#g' /etc/init.d/mysqld
# service mysqld start //启动
# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:80 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
LISTEN 0 80 :::3306 #mysql端口号
3、部署tomcat
tomcat9 下载地址：
# yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel //下载java
# wget https://mirror.bit.edu.cn/apache/tomcat/tomcat-9/v9.0.36/bin/apache-tomcat-9.0.36.tar.gz
# ls
apache-tomcat-9.0.36.tar.gz
# tar -xf apache-tomcat-9.0.36.tar.gz -C /usr/local
# echo "export PATH=/usr/local/apache-tomcat-9.0.33/bin:$PATH" > /etc/profile.d/tomcat.sh //环境变量
# startup.sh
# ss -antl
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 128 *:80 *:*
LISTEN 0 128 *:22 *:*
LISTEN 0 100 127.0.0.1:25 *:*
LISTEN 0 100 :::8080 :::*
LISTEN 0 128 :::22 :::*
LISTEN 0 100 ::1:25 :::*
LISTEN 0 1 ::ffff:127.0.0.1:8005 :::*
LISTEN 0 80 :::3306 :::*
3、实现负载均衡
客户端1：
# cd /usr/local/apache-tomcat-9.0.36/webapps/
# mkdir test
# cd test
# vim index.jsp
<html>
<head>
<title>第一个</title>
</head>
<body>
1111
<body>
</html>
客户端2：
# cd /usr/local/apache-tomcat-9.0.36/webapps/
# mkdir test
# cd test
# vim index.jsp
<html>
<head>
<title>第二个</title>
</head>
<body>
2222
<body>
</html>
服务端
修改配置文件：/usr/local/nginx/conf/nginx.conf
......
#添加
upstream www{
server 192.168.7.12:8080; #客户端2
server 192.168.7.11:8080; #客户端1
}
server {
listen 80; # 端口
server_name xxx.example.com; #设置域名
access_log logs/host.access.log; #指定日志文件
location ~*/test/*.(do|jsp) { #两个客户端的test
proxy_pass http://www; #www要与upstream 一样
index index.html index.htm;
}
}
......
效果：
