实验环境
虚拟机三台
tomcat1 192.168.103.192 tomcat+mysql
tomcat2 192.168.103.195 tomcat
apache2 192.168.103.217 apache2
tomcat目录放在/data/software
一、首先在tomcat1上安装mysql和redis、tomcat
mysql的安装
1.安装mysql相关依赖包
apt-get -y install gcc libncurses5-dev zlib1g-dev libssl-dev bison build-essential
2.MySQL5.5放弃了./configure预编译方式,改用cmake了,所以我们先要安装cmake。
wget http://www.cmake.org/files/v2.8/cmake-2.8.7.tar.gz
tar -zvxf cmake-2.8.7.tar.gz
cd cmake-2.8.7
./configure
make && make install
3.下载Mysql源码包,加压缩后编译安装mysql。
mkdir /var/lib/mysql /var/log/mysql 创建mysql 目录
wget http://downloads.mysql.com/archives/mysql-5.5/mysql-5.5.30.tar.gz
tar -zvxf mysql-5.5.30.tar.gz
cd mysql-5.5.30
cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/var/lib/mysql -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_INNOBASE_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DWITH_SSL=system -DWITH_DEBUG=0
make && make install
# 备注:对于csv,myisam,myisammrg,heap在cmake中是不需要明确指定存储引擎的名称,因为它们是强制性安装。
4.创建用户组和用户,创建相关目录并赋权。
#创建mysql组和mysql用户
groupadd mysql;
useradd -r -g mysql mysql 或 useradd -s /sbin/nologin mysql
chmod +w /usr/local/mysql
chown -R mysql:mysql /usr/local/mysql /var/lib/mysql /var/log/mysql
5.初始化数据库,并给数据库赋权
/usr/local/mysql/scripts/mysql_install_db --user=mysql --pid-file=/var/lib/mysql/mysql.pid --datadir=/var/lib/mysql/ --basedir=/usr/local/mysql
赋权:
chown -R mysql:mysql /var/lib/mysql
6.修改配置文件。
将解压后的tar包下的support-files/my-medium.cnf复制/etc并替换为/my.cnf. (根据需求复制相应配置)
cp support-files/my-medium.cnf /etc/my.cnf
#在[client]下修改socket值为/var/lib/mysql/mysql.sock,
修改mysqld下的socket值为/var/lib/mysql/mysql.sock,并指定mysql目录、mysql数据目录、mysql错误日志目录,配置如下,并设定数据库编码为UTF-8修改后保存退出
[client]
socket = /var/lib/mysql/mysql.sock
# The MySQL server
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
basedir = /usr/local/mysql
datadir = /var/lib/mysql/
log-error = /var/log/mysql/mysql-error.log
pid-file = /var/lib/mysql/mysql.pid
character-set-server = utf8
7.设置mysql开机启动。
启动mysql
/usr/local/mysql/bin/mysqld_safe &
ps -A|grep mysql
设置mysql开机启动。
cp support-files/mysql.server /etc/init.d/mysql
chmod +x /etc/init.d/mysql
chkconfig --add mysql
chkconfig mysql on
测试mysql是否能启动、暂停、重启
service mysql restart (start|stop|restart)
或/etc/init.d/mysql restart (start|stop|restart)
将部分mysql命令加入到/usr/bin中:
ln /usr/local/mysql/bin/mysql /usr/bin/
ln /usr/local/mysql/bin/mysqladmin /usr/bin/
ln /usr/local/mysql/bin/mysqldump /usr/bin/
安装成功后,设置mysql root密码
mysql>set password =password(‘123456‘);
mysql>GRANT ALL PRIVILEGES ON *.* TO ‘myuser‘@‘%‘ IDENTIFIED BY ‘mypassword‘ WITH GRANT OPTION; 可以从任何主机连接到mysql
mysql>flush privileges;
二、安装tomcat
- 首先配置java环境
#vi ~/.bashrc 在末尾添加参数
export JAVA_HOME=/data/software/jdk1.7.0_79
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
#java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)
2.解压配置tomcat
#tar zxvf apache-tomcat-7.0.62.tar.gz
#cd apache-tomcat-7.0.62/webapps/
然后上传登陆系统login,然后数据库指定到本地数据库地址(这里根据自己需求)
进入到tomcat的bin目录下启动服务
tomcat2 上只安装tomcat和以上步骤一样,login配置要指向192.168.103.192这个数据库
三、安装Apache2
1 安装apache2
apt-get install apache2
service apache2 stop
2 加载代理模块
a2enmod proxy proxy_ajp proxy_balancer proxy_connect proxy_ftp proxy_http lbmethod_byrequests
3 修改配置 sudo vi /etc/apache2/mods-enabled/proxy.conf
ProxyRequests Off
<Proxy *>
Order deny,allow
Deny from all
#Allow from .your_domain.com
</Proxy>
4 修改配置 vim /etc/apache2/sites-available/000-default.conf
负载均衡配置
ProxyRequests Off
Proxypass / balancer://proxy/
<Proxy balancer://proxy>
Order Deny,Allow
Allow from all
BalancerMember http://192.168.103.192:8080
BalancerMember http://192.168.103.195:8080
</Proxy>
</VirtualHost>
service apache2 restart
然后访问地址192.168.103.217/login 第一次访问会跳转到192.168.103.192第二次会转到192.168.103.195,实验完成。