使用apache,nginx为tomcat cluster做负载均衡

P { margin-bottom: 0.21cm; }A:link { color: rgb(0, 0, 128); text-decoration: underline; }

下载apache2.2.15源代码。

tar xvf httpd-2.2.15.tar.gz

解压源代码

mkdir /apache2.2

建立安装目标目录(也可不建立，由make自动建立）

./configure --prefix=/apache2.2

编译预处理，并设置安装目标目录。

make

编译apache

make install

安装apache到目标目录

/apache2.2/bin/apachectl start

启动apache

访问出现页面则安装正确。

在apache下载mod_jk.so

修改apache的httpd.conf添加mod_jk相关配置(只有jsp被转发到tomcat！！)

LoadModule jk_module modules/mod_jk.so

JkWorkersFile conf/worker.properties

JkMount /*.jsp lbcontroller

JkShmFile logs/jkshm.shm

JkLogFile logs/mod_jk.log

添加worker.properties

worker.list = lbcontroller,node1,node2

##node1

worker.node1.port=8009

worker.node1.host=192.168.180.114

worker.node1.type=ajp13

worker.node1.lbfactor =1

##node2

worker.node2.port=8009

worker.node2.host=192.168.180.118

worker.node2.type=ajp13

worker.node2.lbfactor =1

##loadblancer

worker.lbcontroller.type=lb

worker.lbcontroller.balance_workers=node1,node2

worker.lbcontroller.sticky_session=1

安装nginx

下载稳定版本的ngnix，pcre

wget

wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.02.tar.gz

解压pcreb并安装pcre包

./configure

make

make install

解压nginx并安装nginx

./configure --prefix=/nginx

make

make install

修改nginx配置文件

worker_processes 10;

events {

use epoll;

worker_connections 8192;

}

http {

include mime.types;

default_type application/octet-stream;

sendfile on;

keepalive_timeout 65;

upstream backend

{

server 192.168.180.114:8080;

server 192.168.180.118:8080;

}

server {

listen 81;

server_name localhost;

#charset koi8-r;

#access_log logs/host.access.log main;

location / {

root /;

index index.jsp index.htm index.html;

proxy_redirect off;

proxy_set_header Host $host;

proxy_set_header X-Real-IP $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_pass

}

}

｝

安装TOMCAT

wget

下载JDK6

创建用户

[root@vm118 /]# useradd tomcat

[root@vm118 /]# passwd tomcat

Changing password for user tomcat.

New UNIX password:

BAD PASSWORD: it is based on a dictionary word

Retype new UNIX password:

passwd: all authentication tokens updated successfully.

[root@vm118 /]# id tomcat

uid=500(tomcat) gid=500(tomcat) groups=500(tomcat) context=root:system_r:unconfined_t:SystemLow-SystemHigh

安装tomcat。

tar xvf apache-tomcat-6.0.26.tar.gz

安装tomcat native

解压tomcat/bin/tomcat-native.tar.gz

tomcat Native需要apache的apr包，可以将另一个主机上的apache apr源代码复制到本机。

./configure

make

make install

当tomcat的日志文件中出现下面信息时，表示native安装成功

INFO: Loaded APR based Apache Tomcat Native library 1.1.20.