通过sessionid转发web请求

1--安装nginx-0.7.65

1-0下载包

jvm-route安装包下载命令：

svn checkout http://nginx-upstream-jvm-route.googlecode.com/svn/trunk/ nginx-upstream-jvm-route-read-only

nginx当前稳定版下载路径wget  http://nginx.org/download/nginx-0.7.65.tar.gz

1-1 解压缩 nginx-0.7.65.tar.gz 到 /usr/develop/yagnwr

1-2解压缩jvm-route.zip到/usr/develop/yagnwr

还可以从网站上下载svncheckouthttp://nginx-upstream-jvm-route.googlecode.com/svn/trunk/nginx-upstream-jvm-route-read-only

1-3切换到/usr/develop/yagnwr/nginx-0.7.65

1-4patch-p0</usr/develop/yagnwr/jvm-route/jvm_route.patch

1-5./configure--prefix=/usr/mpsp/nginx-0.7.65--add-module=/home/yangwr/soft/jvm-route/--with-http_stub_status_module

1-6make

1-7 make install

2--配置文件

rm-f/usr/mpsp/nginx-0.7.65/nginx.conf

vi /usr/mpsp/nginx-0.7.65/nginx.conf

3--修改nginx.conf--针对tomcat

服务器10.110.5.151上的nginx.conf负载做如下配置

upstreamnewjboss{

#ip_hash;

server10.110.5.151:9081max_fails=3fail_timeout=30ssrun_id=a;

server10.110.5.152:9081max_fails=3fail_timeout=30ssrun_id=b;

jvm_route$cookie_JSESSIONID|sessionidreverse;

}

服务器10.110.5.151上的nginx.conf负载做如下配置

upstreamnewjboss{

#ip_hash;

server10.110.5.152:9081max_fails=3fail_timeout=30ssrun_id=b;

server10.110.5.151:9081max_fails=3fail_timeout=30ssrun_id=a;

jvm_route$cookie_JSESSIONID|sessionidreverse;

       }

4--修改tomcat配置/usr/mpsp/newjboss/conf/server.xml

10.110.5.151修改为

<Engine name="Catalina" defaultHost="localhost" jvmRoute="a">

10.110.5.152修改为<Engine name="Catalina" defaultHost="localhost" jvmRoute="b">

5--重启nginx，jbossWeb

注：nginx在cdn，F5后端的情况下，根据ip分发session的策略失效，此时需要根据sessionid来转发，

比如151服务器产生的sessionid以a结尾，服务器152产生的sessionid以b结尾，resin服务器则以a,b开头。