nginx 504初级解决方案

large_client_header_buffers 4 16k;
client_max_body_size 30m;
client_body_buffer_size 128k;
#proxy_connect_timeout 300;
#proxy_read_timeout 300;
#proxy_send_timeout 300;
#proxy_buffer_size 64k;
#proxy_buffers   4 32k;
#proxy_busy_buffers_size 64k;
#proxy_temp_file_write_size 64k;

fastcgi_connect_timeout 300;
fastcgi_read_timeout 300;
fastcgi_send_timeout 300;
fastcgi_buffer_size 64k;
fastcgi_buffers   4 32k;
fastcgi_busy_buffers_size 64k;
fastcgi_temp_file_write_size 64k;

upstream jetty-server {
        #server member.xx.com:8080 ;
        server 172.16.201.209:80 ;
        #jvm_route $cookie_JSESSIONID;
        #proxy_read_timeout 300;//下游服务器读取超时时间
        #proxy_send_timeout 300;//与上相对应
        keepalive 4;//长链接数
}

nginx.conf

          keepalive_timeout 3 //保持长链接超时时间 注意，只是空闲情况下的长链接数，如果并发量大时，会动态上涨；