使用Nginx帮助Jboss负载

Shell代码

shell>> cd /opt
shell>> wget http://sysoev.ru/nginx/nginx-0.7.64.tar.gz
shell>> tar xzvf nginx-0.7.64.tar.gz
shell>> cd nginx-0.7.64

然后开始编译安装，先配置编译变量:

Shell代码

./configure \
--user=nginx \
--group=nginx \
--prefix=/opt/nginx \
--sbin-path=/usr/sbin/nginx \
--conf-path=/etc/nginx/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--http-client-body-temp-path=/tmp/nginx/client_body \
--http-proxy-temp-path=/tmp/nginx/proxy \
--http-fastcgi-temp-path=/tmp/nginx/fastcgi \
--pid-path=/var/run/nginx.pid \
--lock-path=/var/lock/subsys/nginx \
--with-http_stub_status_module

这里解释一下:
# --user            是指启用程序所属用户
# --group           是指启动程序所属组
# --prefix          是指nginx安装目录（不是源代码目录）
# --sbin-path       是指nginx命令位置
# --conf-path       是指配置文件路径
# --error-log-path 是错误日志路径
# --http-log-path   是访问日志

     其他是一些临时文件的路径和做linux service需要用到的文件

需要监控服务需安装此监控状态模块

# --with-http_stub_status_module

    然后make

Shell代码

shell>> cd /opt/nginx
shell>> make
shell>> make install

    现在已经可以通过nginx命令来启动了，但是我们如果想要把nginx做成一个服务，必须要写一个shell.
简单说一下，
# chkconfig:   - 85 15 所有运行级别，启动优先级85, 关闭优先级15
# processname: 进程名称
# config:      nginx配置文件位置
# config:      系统会优先找第一个，如果找不到再去找第二个
# pidfile:     进程ID存放文件，用来存放程序启动后的进程ID

# Source function library. linux常用的方法库，有兴趣可以去看看service XXX status 就使用了里边的一个方法
# Source networking configuration. 网络配置

Shell代码

#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
# by haitao.tu at 2009-12-15
# email:[email protected]
#
# chkconfig: - 85 15
# description: Nginx is an HTTP(S) server, HTTP(S) reverse \
# proxy and IMAP/POP3 proxy server
# processname: nginx
# config: /etc/nginx/nginx.conf
# config: /etc/sysconfig/nginx
# pidfile: /var/run/nginx.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
nginx="/usr/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/etc/nginx/nginx.conf"
[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile=/var/lock/subsys/nginx
start() {
[ -x $nginx ] || exit 5
[ -f $NGINX_CONF_FILE ] || exit 6
echo -n $"Starting $prog: "
daemon $nginx -c $NGINX_CONF_FILE
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
configtest_q || configtest || return 6
stop
start
}
reload() {
configtest_q || configtest || return 6
echo -n $"Reloading $prog: "
killproc $nginx -HUP
echo
}
configtest() {
$nginx -t -c $NGINX_CONF_FILE
}
configtest_q() {
configtest >/dev/null 2>&1
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
# Upgrade the binary with no downtime.
upgrade() {
local pidfile="/var/run/${prog}.pid"
local oldbin_pidfile="${pidfile}.oldbin"
configtest_q || configtest || return 6
echo -n $"Staring new master $prog: "
killproc $nginx -USR2
retval=$?
echo
sleep 1
if [[ -f ${oldbin_pidfile} && -f ${pidfile} ]]; then
echo -n $"Graceful shutdown of old $prog: "
killproc -p ${oldbin_pidfile} -QUIT
retval=$?
echo
return 0
else
echo $"Something bad happened, manual intervention required, maybe restart?"
return 1
fi
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart|configtest)
$1
;;
force-reload|upgrade)
rh_status_q || exit 7
upgrade
;;
reload)
rh_status_q || exit 7
$1
;;
status|status_q)
rh_$1
;;
condrestart|try-restart)
rh_status_q || exit 7
restart
;;
*)
echo $"Usage: $0 {start|stop|reload|configtest|status|force-reload|upgrade|restart}"
exit 2
esac

好了，已经做成chkconfig了，下边需要配置一下nginx反向代理,需要修改/etc/nginx/nginx.conf配置文件

Shell代码

user nginx;
worker_processes 2;
error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;
events {
use epoll; # 采用epoll,是linux下最快的event
worker_connections 2048;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
#gzip on;
#反向代理配置 ,向内网6台jboss转发
upstream jboss5 {
server 172.16.201.127:8080 weight=10;
server 172.16.201.128:8080 weight=10;
server 172.16.201.129:8080 weight=10;
server 172.16.201.130:8080 weight=10;
server 172.16.201.131:8080 weight=10;
server 172.16.201.132:8080 weight=10;
}
server {
listen 80;
server_name localhost;
location ~ ^/nginx_status/ {
stub_status on;
access_log off;
}
location / {
proxy_pass http://jboss5;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}

使用Nginx帮助Jboss负载

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