配置環(huán)境：

  主機(jī)一：172.16.251.73    安裝tomcat（tomcat, tomcat-lib, tomcat-admin-webapps, tomcat-webapps, tomcat-docs-webapp）
  主機(jī)二：172.16.251.75    安裝tomcat（tomcat, tomcat-lib, tomcat-admin-webapps, tomcat-webapps, tomcat-docs-webapp）
  主機(jī)三：172.16.251.91   安裝ngnix，httpd，haproxy


  在實(shí)驗(yàn)環(huán)境下所有主機(jī)清空防火墻策略以及禁用selinux：
    iptables   -F
    setenforce 0


 為了使實(shí)驗(yàn)便于觀察與分析，使2臺(tái)tomcat主機(jī)的默認(rèn)頁(yè)面為自定義頁(yè)面  。

QQ截圖20170902114109.png

①nginx + tomcat
vim /etc/nginx/nginx.conf

QQ截圖20170902113857.png

![QQ截圖20170902114138.png](http://upload-images.jianshu.io/upload_images/6107809-1b42467fa541f224.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

QQ截圖20170902114303.png

② haproxy + tomcat
vim /etc/haproxy/haproxy.cfg

QQ截圖20170902115030.png

QQ截圖20170902115052.png

![QQ截圖20170902115121.png](http://upload-images.jianshu.io/upload_images/6107809-070bf14f15a27738.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

haproxy的狀態(tài)頁(yè)

③httpd + tomcat
vim /etc/httpd/conf/httpd.conf

QQ截圖20170902134910.png

![QQ截圖20170902134927.png](http://upload-images.jianshu.io/upload_images/6107809-85960e5b9d799c0e.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)

④會(huì)話粘滯

QQ截圖20170902135846.png

![QQ截圖20170902135931.png](http://upload-images.jianshu.io/upload_images/6107809-68d3e42dea4e7943.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)