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臺式機配置：雙核4G內(nèi)存 VM開了三個虛擬機：一個做nginx服務器，設memory1G，ip:10.10.21.134;兩個做web服務器，使用的是自己裝的Q2A網(wǎng)站，memory都是1G，ip分別為：10.10.21.135,10.10.21.138 nginx.conf主要內(nèi)容： worker_processes 2; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; #均衡 upstream webservers{ server 10.10.21.135 max_fails=3 fail_timeout=1s weight=1; server 10.10.21.138 max_fails=3 fail_timeout=1s weight=1; server 127.0.0.1:8080 backup; #緩存 proxy_cache_path /nginx/cache/first levels=1:2:1 keys_zone=a:20m max_size=1g; server { listen 80; server_name localhost; location / { proxy_pass http://webservers/; proxy_set_header X-Real-IP $remote_addr; proxy_connect_timeout 300; proxy_read_timeout 300; proxy_send_timeout 300; proxy_cache a; #js與css請求 location ~.*\.(gif|jpg|jpeg|png|bmp|swf|css|js)$ { proxy_pass http://10.10.21.135; } } } apache2.conf的最主要配置： Timeout 300 KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 15 <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 6 ServerLimit 550 MaxClients 500 MaxRequestsPerChild 10000 </IfModule> HostnameLookups Off 使用webbench做測試時，60S并發(fā)1000時基本均衡，漏掉的請求也不是很多，60S并發(fā)1500做測試時，使用grep 'GET /' /var/log/nginx/access.log | grep '15/Sep/2014:19'|wc -l 命令對access.log做計算時結(jié)果如下： nginx服務器：  兩個web：   結(jié)果漏了很多請求 error.log內(nèi)容： nginx：2014/09/15 19:30:04 [error] 29561#0: *7668 connect() failed (110: Connection timed out) while connecting to upstream, client: 10.10.21.137, server: localhost, request: "GET / HTTP/1.0", upstream: "http://10.10.21.135:80/", host: "10.10.21.134" 135服務器： [error] [client 10.10.21.134] PHP Notice: session_start(): ps_files_cleanup_dir: opendir(/var/lib/php5) failed: Permission denied (13) in /var/www/question2answer/qa-include/qa-app-users.php on line 150 138服務器： [error] [client 10.10.21.134] request failed: error reading the headers 難道這就是極限了嗎？還是我的配置數(shù)據(jù)有問題啊？ 怎樣優(yōu)化nginx的配置呢？ 尋求這位的幫助~~ |
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