N years ago the application of Nginx load Balancing in Sina Podcast

2008 Sina Podcast is composed of static server cluster and dynamic server cluster, static server cluster uses squid to do front-end cache, dynamic server is also called interface server, mainly used to achieve display playback, record playback logs and so on.
The interface server uses F5 big-IP hardware four/Seven load balancer switch, 4 nginx reverse proxy Server four layer load balancing, by the four Nginx server to determine the URL, group, the back end 3 groups of Web servers to load balance seven.
F5 big-IP Backend 3 sets of Web servers, configuration is not the same, the first set of memory-intensive, technology is mainly Php+mencache services, the 2nd is CPU-intensive services, the main consumption of CP resources, the third group is disk-intensive, logging and other operations, require large space.
The following code is the interface server Nginx load Balancing configuration;

/*** code is n years ago, Sina interface Server Nginx Load balancer configuration, provide by the URL group service, load Balancing service ***/usr www www;worker_processesTen; Error_log/data1/logs/nginx_error.log Crit;pid/tmp/nginx.pidworker_rlimt_nofile51200; events{ UseEpull; Worker_connections51200;} http{includeConf/mine.types;    Default_type Application/octet-stream;    CharSet gb2312; Server_name_hash_bucket_size -; Keeplaive_timeout the;    Sendfile on;    Tcp_mopush on; Tcp_nodelay on;#第一组接口机: Memcache related (hits)Upstream count.Interface. video.sian.com.cn{Server xx.xx.xx. the: the; Server xx.xx.xx.: the; Server xx.xx.xx.: the; }#第二组接口机: Provide data class programsUpstream data.Interface. video.sian.com.cn{Server xx.xx.xx.: the; Server xx.xx.xx.: the; Server xx.xx.xx.: the; }#第三组接口机: Logging programs, function-related, nested pagesUpstream log.Interface. video.sian.com.cn{Server xx.xx.xx. the: the; Server xx.xx.xx.: the; }}server{Listen the; server_name interface. video. Sian. com.    cn; Location/{  Proxy_redirect off;#后端的web服务器可以直接通过X-forward-for Get the user real IPProxy_set_header x-forward- for$remote _adr;#按URL进行分组, Group One: Memcache related (hits)if($request _uri~"^\/app\/count\/") {Proxy_pass http://count.interface.video.sian.com.cn;}if($request _uri~"^\/app\/online\/") {Proxy_pass http://count.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/user\/getlogingap.php") {Proxy_pass http://count.interface.video.sian.com.cn;}#按URL进行分组, second group: External Data Class programif($request _uri~"^\/crossdomain.xml") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/client\/topvideoclient.php") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/common\/") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/randplay\/randplay.php") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/topic\/suggtop.php") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/uploadclient\/") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/xml\/") {Proxy_pass http://data.interface.video.sian.com.cn;}if($request _uri~"^\/outinterface\/") {Proxy_pass http://data.interface.video.sian.com.cn;}#按URL进行分组, Group Three: Playing log class programif($request _uri~"^\/interface\/flash\/") {Proxy_pass http://log.interface.video.sian.com.cn;}if($request _uri~"^\/interface\/playrank\/playrank2008_10.php") {Proxy_pass http://log.interface.video.sian.com.cn;}#按URL进行分组, other groups: feature-related, nested pages, etc. unmatched URLsProxy_pass http://log.interface.video.sina.com.cn;}#定义日至格式Log_format Count' $remote _addr-$remote _user [$time _local] $request '" $status" $body _bytes_sent "$http _referer"' "$http _user_agent" "$http _x_forwarded_for" ';#打日志access_log/data1/logs/ interface. Log count; #允许客户端请求的最大单文件字节数client_max_body_size m; #缓冲区代理缓冲用户端的最大字节数 can be understood as existing to the local and then passed to the user  Client_body_size k; #跟后端服务器连接的超时时间_ Initiate handshake wait response time-out proxy_connect_time #连接成功后 _ wait for back-end server Response time _ actually has entered the back end of the party waiting for processing proxy_read_timeout ; #后端回传时间_ The specified time incoming all data proxy_send_timeout ; #代理请求缓存区, save the user's header information for Nginx to handle the rules proxy_buffer_size 8K; proxy_buffers 4k; proxy_busy_buffers_size k; proxy_temp_file_write_size k;}}

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