centos65 负载均衡nginx session共享redis

一、安装JDK7

1.查询已经安装的jdk
rpm -qa|grep jdk
2.卸载已经安装的jdk
rpm -e --nodeps *****(查询出来的东西...)
3.将安装文件jdk-7u79-linux-x64.rpm上传到/usr/java
cd /usr/java
4.安装
rpm -ivh jdk-7u79-linux-x64.rpm
5.编辑profile 添加以下三行
vim /etc/profile
export JAVA_HOME=/usr/java/jdk1.7.0_79
export PATH=$PATH:$JAVA_HOME/bin:$JAVA_HOME/jre/bin
export CLASSPATH=.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$CLASSPATH
export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL
6.使配置立即生效
source /etc/profile

二、安装nginx

1.创建一个新的文件
touch /etc/yum.repos.d/nginx.repo
2.编辑新增文件
vim /etc/yum.repos.d/nginx.repo
3.将以下内容拷贝进去
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1
4.进行yum安装
yum -y install nginx
5.启动nginx
service nginx start
6.测试nginx
curl 127.0.0.1

三、安装redis

1.安装tcl支持
yum install tcl
2.安装gcc支持
yum install -y gcc g++ gcc-c++ make
3.下载redis
wget http://download.redis.io/releases/redis-2.8.16.tar.gz
4.解压
tar xzf redis-2.8.16.tar.gz
5.进入目录
cd redis-2.8.16
6.安装
make
make test
make install
7.编辑redis.conf文件并拷贝到etc目录下
vim redis.conf
修改daemonize no改成yes
cp redis.conf /etc
8.自启动
进入目录
cd /etc/init.d
创建文件
touch redis
编辑文件
vim redis
将以下内容拷贝到文件里面保存退出
##########################
#chkconfig: 2345 10 90
#description: Start and Stop redis
PATH=/usr/local/bin:/sbin:/usr/bin:/bin

REDISPORT=6379
EXEC=/usr/local/bin/redis-server
REDIS_CLI=/usr/local/bin/redis-cli

PIDFILE=/var/run/redis.pid
C/etc/redis.conf"
case "$1" in
start)
if [ -f $PIDFILE ]
then
echo "$PIDFILE exists, process is already running or crashed"
else
echo "Starting Redis server..."
$EXEC $CONF
fi
if [ "$?"="0" ]
then
echo "Redis is running..."
fi
;;
stop)
if [ ! -f $PIDFILE ]
then
echo "$PIDFILE does not exist, process is not running"
else
PID=$(cat $PIDFILE)
echo "Stopping ..."
$REDIS_CLI -p $REDISPORT SHUTDOWN
while [ -x ${PIDFILE} ]
do
echo "Waiting for Redis to shutdown ..."
sleep 1
done
echo "Redis stopped"
fi
;;
restart|force-reload)
${0} stop
${0} start
;;
*)
echo "Usage: /etc/init.d/redis {start|stop|restart|force-reload}" >&2
exit 1
esac
##############################
9.修改权限
chmod +x /etc/init.d/redis
10.启动redis服务
service redis start

11.进入redis-cli进行测试

set redis hello,redis
+OK
get redis
$11
hello,redis

四、nginx配置

1.忘记nginx装在哪里
whereis nginx
2.切入到目录
cd /etc/nginx
3.编辑配置文件
upstream www.test.com{
ip_hash;
server localhost:8080;
server localhost:9080;
}
server {
listen 80;
server_name www.test.com;
charset utf-8;
location / {
proxy_pass http://www.test.com;
proxy_set_header X-Real-IP $remote_addr;
client_max_body_size 100m;
proxy_connect_timeout 16;
proxy_read_timeout 16;
proxy_send_timeout 16;
}
}
4.重新加载一下
nginx -s reload
5.修改hosts文件
vim /etc/hosts
新增
127.0.0.1 www.test.com

五、同一台服务器上跑两个tomcat配置

1. 修改profile
vim /etc/profile
新增以下内容:
CATALINA_BASE=/mnt/apache-tomcat-01 【tomcat1路径】
CATALINA_HOME=/mnt/apache-tomcat-01
export CATALINA_BASE CATALINA_HOME
CATALINA_2_BASE=/mnt/apache-tomcat-02 【tomcat2路径】
CATALINA_2_HOME=/mnt/apache-tomcat-02
export CATALINA_2_BASE CATALINA_2_HOME
TOMCAT_HOME=/mnt/apache-tomcat-01
export TOMCAT_HOME
TOMCAT_2_HOME=/mnt/apache-tomcat-02
export TOMCAT_2_HOME
2.使配置生效
source /etc/profile
3.把tomcat复制两份，其中一份无需修改，另外一份需要做以下修改
修改server.xml
端口：8005->9005
端口：8080->9080
8009->9009