Nginx+resin――session问题
Nginx+resin
——session
问题
环境：server1 ： 192.168.2.33 nginx+resin 192.168.2.33:8081/web1
Server2 ： 192.168.2.34 resin
192.168.2.34:8081/web1
1
、192.168.2.34
上resin
配置：
Jdk和resin安装配置过程略！
[root@xxoo34 ~]# vi /usr/local/resin/conf/resin.xml
末尾自定义的站点段：
<cluster id="a">
<server-default>
<socket-timeout>40s</socket-timeout>
<keepalive-max>3000</keepalive-max>
<keepalive-timeout>40s</keepalive-timeout>
<load-balance-idle-time>30s</load-balance-idle-time>
<thread-max>512</thread-max> （线程池）
<jvm-arg>-Xms64m</jvm-arg>
<jvm-arg>-Xmx64m</jvm-arg>
<jvm-arg>-Xss32m</jvm-arg>
<jvm-arg>-server</jvm-arg>
</server-default>
<resin:import path="${resin.home}/conf/app-default.xml"/>
<server id="a" address="127.0.0.1" port="6801"> （这里的a 将是nginx配置文件里srun_id= 所对应的 ID别名）
<http id="" port="8081"/>
</server>
<host id="" root-directory=".">
<web-app id="/" root-directory="/usr/local/web/web1" />
<character-encoding>UTF-8</character-encoding>
</host>
</cluster>
2
、192.168.2.33
上resin
配置：
[root@xxoo33~]# vi /usr/local/resin/conf/resin.xml
末尾自定义的站点段：
<cluster id="b">
<server-default>
<socket-timeout>40s</socket-timeout>
<keepalive-max>3000</keepalive-max>
<keepalive-timeout>40s</keepalive-timeout>
<load-balance-idle-time>30s</load-balance-idle-time>
<thread-max>512</thread-max>
<jvm-arg>-Xms64m</jvm-arg>
<jvm-arg>-Xmx64m</jvm-arg>
<jvm-arg>-Xss32m</jvm-arg>
<jvm-arg>-server</jvm-arg>
</server-default>
<resin:import path="${resin.home}/conf/app-default.xml"/>
<server id="b" address="127.0.0.1" port="6801">
<http id="" port="8081"/>
</server>
<host id="" root-directory=".">
<web-app id="/" root-directory="/usr/local/web/web1" />
<character-encoding>UTF-8</character-encoding>
</host>
</cluster>
3
、nginx
上如果原来安装好了则从新 ./configure
和 make
如果没安装过则全新安装！
[root@xxoo33 home]# tar zxvf nginx-1.0.13.tar.gz -C /usr/src/
[root@xxoo33 home]# tar zxvf nginx-upstream-jvm-route-0.1.tar.gz -C /usr/src/
[root@xxoo33 home]# tar zcvf ngx_cache_purge-1.6.tar.gz -C /usr/src/
[root@xxoo33 home]# cd /usr/src/nginx-1.0.13/
[root@xxoo33 nginx-1.0.13]# patch -p0 < /usr/src/nginx_upstream_jvm_route/jvm_route.patch
（打nginx-upstream-jvm补丁 解决session）
[root@xxoo33~]# ./configure --prefix=/usr/local/nginx (--add-module=/usr/src/ngx_cache_purge-1.6 –单独清缓存模块) --with-http_stub_status_module --with-http_ssl_module --with-pcre=/usr/src/pcre-8.30/ --add-module=/usr/src/nginx_upstream_jvm_route
Make
Make install
[root@xxoo33 nginx-1.0.13]# vi /usr/local/nginx/conf/nginx.conf
user nobody;
worker_processes 8;
error_log logs/nginx_error.log crit;
pid
/usr/local/nginx/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 20480;
events
{
use epoll;
worker_connections 20480;
}
http {
#
ip_hash;
upstream web1 {
server 192.168.2.33:8081 srun_id=b; （srun_id对应resin server id 别名）
server 192.168.2.34:8081 srun_id=a;
jvm_route $cookie_JSESSIONID|sessionid;
(jvm_route 解决session) tomcat的是jvm_route $cookie_JSESSIONID|sessionid reverse;
}
include
mime.types;
default_type application/octet-stream;
#charset gb2312;
charset UTF-8;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_header_timeout 20;
client_max_body_size 20m;
sendfile on;
tcp_nopush
on;
keepalive_timeout 60;
tcp_nodelay on;
proxy_connect_timeout 30;
proxy_read_timeout 60;
proxy_send_timeout 20;
proxy_buffer_size 96k;
proxy_buffers 8 256k;
proxy_busy_buffers_size 512k;
proxy_temp_file_write_size 512k;
# proxy_store on;
# proxy_store_access user:rw group:rw all:rw;
proxy_temp_path /usr/local/nginx/proxy_temp;
（单独清缓存 无需则注释#注：proxy_temp_path和proxy_cache_path指定的路径必须在同一分区）
#设置Web缓存区名称为cache_one，内存缓存空间大小为20MB，1天没有被访问的内容自动清除，硬盘缓存空间大小为2GB。
proxy_cache_path /usr/local/nginx/www levels=1:2 keys_zone=cache_one:20m inactive=1d max_size=2g;
gzip on;
gzip_proxied any;
gzip_min_length 1k;
gzip_buffers
4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types
text/plain application/x-javascript text/css application/xml;
gzip_vary on;
# limit_zone one $binary_remote_addr 10m;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
server {
listen 80;
server_name 192.168.2.40; （这里用虚拟IP代替）
index index.html index.jsp;
location /
{
#如果后端的服务器返回502、504、执行超时等错误，自动将请求转发到upstream负载均衡池中的另一台服务器，实现故障转移。
proxy_next_upstream http_502 http_504 error timeout invalid_header;
proxy_cache cache_one;
#对不同的HTTP状态码设置不同的缓存时间
proxy_cache_valid 200 304 12h;
#以域名、URI、参数组合成Web缓存的Key值，Nginx根据Key值哈希，存储缓存内容到二级缓存目录内
proxy_cache_key $host$uri$is_args$args;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_pass http://backend_server;
expires 1d;
}
location /
{
proxy_cache cache_one;
proxy_cache_valid 200 304 2h;
proxy_cache_valid any 30m;
proxy_cache_key $host$uri$is_args$args;
proxy_pass http://web1;
}
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
{
proxy_cache cache_one;
proxy_cache_valid 200 304 5h;
proxy_cache_valid any 3m;
proxy_cache_key $host$uri$is_args$args;
expires 8h;
proxy_pass http://web1;
}
location ~ .*\.(js|css|html)$
{
proxy_cache cache_one;
proxy_cache_valid 200 304 3h;
proxy_cache_valid any 3m;
proxy_cache_key $host$uri$is_args$args;
expires 5h;
proxy_pass http://web1;
}
#用于清除缓存，假设一个URL为http://192.168.2.33/aa/xo.jsp，通过访问http://192.168.2.33/purge/aa/xo.jsp就可以清除该URL的缓存。
location ~ /purge(/.*)
{
allow all; (允许所有操作)
deny 59.42.95.33/32; （拒绝这个地址操作）
proxy_cache_purge cache_one $host$1$is_args$args;
}
}
}
4
、分别在
两台server
的web1
内建立测试页
：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
%>
<%
%>
<html>
<head>
</head>
<body>
192.168.2.33
<head>
</head>
<body>
192.168.2.33
<!--server2 这里为 192.168.2.34->
<br />
<%out.print(request.getSession()) ;%>
<br />
<%out.print(request.getSession()) ;%>
<!--输出session-->
<br />
<%out.println(request.getHeader("Cookie")); %>
<!--输出Cookie-->
<br />
<%out.println(request.getHeader("Cookie")); %>
<!--输出Cookie-->
</body>
</html> （方面测试 session 问题）
</html> （方面测试 session 问题）
或：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title> xxoo</title>
</head>
<body>
192.168.2.33 FACK you!
<br />
<img src=\'#\'" />
</body>
（方便测试缓存测试）
5
、session
测试结果：
http://192.168.2.40
192.168.2.33 8081 web1!! 192.168.2.33
SessionImpl[aaacAAl8SMpbS9uCcbGIt,]
JSESSIONID=aaacAAl8SMpbS9uCcbGIt
SessionImpl[aaacAAl8SMpbS9uCcbGIt,]
JSESSIONID=aaacAAl8SMpbS9uCcbGIt
如果无 jvm_route 模块功能 大家测试的时候如果有疑问可一把 nginx 配置文件的
srun_id=a srun_id=b 去掉，然后在访问，就会知道 页面是轮询访问得了！！
5
、缓存清楚测试结果：
http://192.168.2.40/purge/bb/ox.jsp
Successful purge
Key : 192.168.2.40/bb/ox.jsp
Path: /usr/local/nginx/www/3/5e/d1bee53e3e153261fdf88eb12c3ad5e3
nginx/1.0.13