nginx iis load balancing

configuration of keepalive is OK;Five, calibration and testing Start Keepalived (two units):/etc/init.d/keepalived start At the main server, the Nginx or keepalived service is closed to observe the availability of the service; If floating to the standby server, the same, on the standby server at random to the Nginx or keepalived services shut down, and then observe; Finally, it should

When the large-scale website is set up, it will consider that if the daily increase in user volume, a large number of concurrent access, will not give the site, the database to bring a crash disaster. Today we'll talk about how to solve these problems in reality in a set of the most easy to achieve solution.Control concurrency, everyone will first consider the distributed, load-balancing and other commonly

Environment Introduction192.168.127.131 nginx Load balancer and Web server192.168.127.130 nginx Load balancer and Web serverEach server has two Web sites, respectivelyWww.123.comWww.hu.comDescriptionReady to useDNSPolling resolution for load

Nginx is an excellent reverse proxy server. Here we mainly talk about its health check and load balancing mechanisms, as well as the problems caused by these mechanisms. The so-called health check means that when there is a problem at the backend (specifically, what is a problem, depending on the specific implementation, different implementation definitions), no

ObjectiveReverse proxy refers to the way users access the server backend by proxy server through the same server. (See Baidu Encyclopedia https://baike.baidu.com/item/Reverse Proxy/7793488)?Application scenario of Nginx reverse Proxy1, to achieve external network users access to internal network server, relative protection of intranet server security and save network resources2, increase the cache, ease the internal network server access pressure3. Im

Reprinted please indicate from "LIU Da's csdn blog": http://blog.csdn.net/poechant For more articles, refer to the csdn column nginx high-performance WEB server orBackend server development series-practical nginx High-Performance Web Server Nginx's httpupstreammodule provides simple Load Balancing for backend servers.

{server localhost: 8080 weight = 5; server localhost: 9091 weight = 1;} server {listen 80; server_name localhost; location/{proxy_connect_timeout 3; proxy_send_timeout 30; proxy_read_timeout 30; proxy_pass http://localhost ;}}} 5. load balancing weight configuration upstream localhost { server localhost:8080 weight=5; server localhost:9091 weight=1; } '). AddClass ('pre-numbering '). hide

solve the session sharing problem, you can use NFS shared session, the session to write MySQL or Memcache methods, when the machine size is larger, the general use of the session is written into the memcache inside. How the backend Web server is configured we do not discuss this here, the backend server may be apache,nginx,tomcat,lighthttp and so on, the front-end does not care what the back end is.First create a new proxy.conf file to make it easie

接成功后, back-end server response time (proxy receive timeout) - proxy_buffer_size 4k; #设置代理服务器 (nginx) buffer size for saving user header information + proxy_buffers 4 32k; #proxy_buffers缓冲区, the average web page is below 32k, so set A proxy_busy_buffers_size 64k; #高负荷下缓冲大小 (proxy_buffers*2) at proxy_temp_file_write_size 64k; #设定缓存文件夹大小, greater than this value, will be transmitted from the upstream server - } -}

1. Polling Polling is round Robin, which distributes the client's Web requests to different back-end servers sequentially, according to the order in the Nginx configuration file.Examples of configurations are as follows: http{ upstream SampleApp { Server Only 1 DNS portals were inserted into the upstream section, the SampleApp, which was also recalled in the Proxy_pass section later. 2, the least connection Web requests are forw

as the most front-end, then the Nginx IP can only get Squid server IP address, with this address to shunt is definitely confused.The back end of the 2.nginx also has other ways of load balancing.If the Nginx backend has other load balan