关于java:ngnix集群高并发

server {

    listen 80;
    server_name manage.jt.com;
    location / {
    #代理
    #proxy_pass http://localhost:8091;     
    proxy_pass http://jtWindows;
    }
}
#
upstream jtWindows {
#轮询,筞重,iphash  down属性 挂掉的意思  #backup 备用机
    #ip_hash;
    #server 127.0.0.1:8081 weight=6;
    #server 127.0.0.1:8083 weight=3;
    #server 127.0.0.1:8082 weight=1;
    server 127.0.0.1:8081  down;#down属性 挂掉的意思
    server 127.0.0.1:8083  max_fails=1 fail_timeout=60s;#阐明:max_fails 示意失败次数,在规定的fail_timeout的工夫范畴之         #内,如果        #检测服务器失败则在60秒内不会将申请发往这台tomcat.
    #60秒过后会再次检测.
    server 127.0.0.1:8082 backup;#backup 备用机