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Linux ÉÏÅäÖÃNginx + Mongrel cluster

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Nginx²»½öÊÇÒ»¸öСÇÉÇÒ¸ßЧµÄHTTP·þÎñÆ÷£¬Ò²¿ÉÒÔ×öÒ»¸ö¸ßЧµÄ¸ºÔؾùºâ·´Ïò´úÀí£¬Í¨¹ýËü½ÓÊÜÓû§µÄÇëÇó²¢·Ö·¢µ½¶à¸öMongrel½ø³Ì¿ÉÒÔ¼«´óÌá¸ßRailsÓ¦ÓõIJ¢·¢ÄÜÁ¦¡£ÏÂÃæ½éÉÜÒ»ÏÂÈçºÎÔÚһ̨·þÎñÆ÷ÉÏÅäÖÃNginx + Mongrel cluster¡£

»ñµÃNginx£¬ÕâÀïÎÒÃǼÙÉè´ó¼ÒÊÇͨ¹ý×Ô¼º±àÒ룬²¢ÅäÖÃÁËĬÈϵıàÒëµÄ²ÎÊý£¬´Ë´¦Ê¹ÓõÄÊÇNginx 0.5.x°æ¡£

ÅäÖÃMongrel cluster
ÎÒÃÇ»¹ÐèÒª»ñµÃMongrelºÍÆäCluster²å¼þ£¨ÓÃÀ´·½±ãµÃÆô¶¯¶à¸öMongrel½ø³Ì£©£¬ÈçÏÂͨ¹ýgem½øÐа²×°£º

gem i -y mongrel mongrel_cluster

È»ºó½¨Á¢mongrel_clusterµÄÅäÖÃÎļþ¡£½øÈëRailsÓ¦Óü´ÄãµÄ³ÌÐòµÄ¸ù²¿Ä¿Â¼£¨ÒÔϼÙÉè/usr/rails£©£¬ÔËÐУº

mongrel_rails cluster::configure

È»ºómongrel_cluster±ã»áÔÚconfigĿ¼ÏÂÉú³ÉÒ»¸ömongrel_cluster.yml£¬ÄÚÈÝÈçÏ£º

---
log_file: log/mongrel.log
port: 3000
pid_file: tmp/pids/mongrel.pid
servers: 2

ÎÒÃÇ¿ÉÒÔͨ¹ýÐÞ¸ÄÆäÖеÄÉèÖÃÀ´¸ü¸Ämongrel_clusterµÄÔËÐУ¬Õâ¸ö·¶ÀýÅäÖÃÊ¡ÂÔÁËһЩÆäËû²ÎÊý£¬¾ßÌåµÄ²ÎÊýµÄº¬ÒåÈçÏ£º

address: Ö¸¶¨°ó¶¨µÄµØÖ·
port: Ö¸¶¨mongrel_clusterËùÔËÐеÄmongrel½ø³Ì´ÓÄĸö¶Ë¿Ú¿ªÊ¼°ó¶¨
servers: Ö¸¶¨Í¬Ê±ÔËÐжàÉÙ¸ömongrel½ø³Ì£¬½áºÏport²ÎÊý£¬¾ÍÊDZíʾportµ½port+servers-1£¨º¬£©µÄ¶Ë¿Ú½«±»Ê¹ÓÃ
environment: Ö¸¶¨RailsÔËÐеÄÅäÖû·¾³
user: Ö¸¶¨mongrel½ø³ÌÒÔʲôÓû§µÄÉí·ÝÔËÐÐ
group: Ö¸¶¨mongrel½ø³ÌÒÔʲô×éµÄÉí·ÝÔËÐÐ
cwd: Ö¸¶¨mongrelÔËÐеĸùĿ¼
log_file: ¸÷¸ömongrel½ø³ÌµÄÊä³öÈÕÖ¾µÄλÖã¬Ïà¶ÔÓÚcwdµÄĿ¼£¬»áÔÚÎļþµÄÀ©Õ¹Ãû֮ǰ¼ÓÉϸ÷½ø³Ì¶ÔÓ¦µÄ¶Ë¿ÚºÅ
pid_file: ¸÷¸ömongrel½ø³ÌµÄpidÎļþµÄλÖã¬Ïà¶ÔÓÚcwdµÄĿ¼£¬»áÔÚÎļþµÄÀ©Õ¹Ãû֮ǰ¼ÓÉϸ÷½ø³Ì¶ÔÓ¦µÄ¶Ë¿ÚºÅ
´ó¼Ò¿ÉÒÔ¸ù¾Ý×Ô¼ºµÄ¾ßÌåÇé¿ö½øÐÐÐ޸ġ£ÒÔÏÂÊÇÒ»¸öÍêÕûµÄmongrel_cluster.ymlÅäÖÃÎļþ£º

---
user: apache
cwd: /usr/rails/
log_file: log/mongrel.log
port: 3000
environment: production
group: apache
address: 127.0.0.1
pid_file: tmp/pids/mongrel.pid
servers: 5

½ÓÏÂÀ´±ã¿ÉÒÔÆô¶¯mongrel_clusterÁË£¬ÒÔÏÂÊÇ¿ØÖÆmongrel_clusterµÄÃüÁ

mongrel_rails cluster::start #Æô¶¯
mongrel_rails cluster::restart #ÖØÆô
mongrel_rails cluster::stop #Í£Ö¹

ÅäÖÃNginx¸ºÔؾùºâ·´Ïò´úÀí

ÀûÓÃnginxµÄupstreamÖ¸ÁîÅäÖÃÄÄЩ·þÎñÆ÷ÐèÒª½øÐиºÔؾùºâ¡£ÔÚÕâÀïÒ²¿ÉÒÔ˵ֱ½Ó˵¸æËßnginx mongrel_clusterÔÚÄÄЩµØÖ·ºÍ¶Ë¿ÚÉÏ£¬°´ÕÕÉÏÃæµÄmongrel_clusterµÄÅäÖã¬ÔÚnginxÖÐÓ¦¸ÃÕâÑùд£º

...
http{
...
#upstream¶ÎÒª·ÅÔÚhttp¶ÎÖÐ
upstream mongrel {
server 127.0.0.1:3000;
server 127.0.0.1:3001;
server 127.0.0.1:3002;
server 127.0.0.1:3003;
server 127.0.0.1:3004;
}
...
}

upstreamÖ¸ÁîºóÃæµÄmongrelÖ¸¶¨ÁËÕâÅúÉÏÓηþÎñÆ÷µÄµÄÃû³Æ£¬´ó¼Ò¿ÉÒÔʹÓñðµÄÃû×Ö¡£Ã¿¸öserverÖ¸ÁîÖ¸¶¨ÁËÒ»¸ö·þÎñÆ÷£¬serverÖ¸Á֧³Ö±ðµÄ²ÎÊý¿ÉÒÔÉèÖÃÖØÊÔ´ÎÊýºÍ³¬Ê±Ê±¼äÒÔ¼°²»Í¬·þÎñÆ÷µÄÈ¨ÖØ¡£

½ÓÏÂÀ´ÅäÖÃnginxÔÚ½ÓÊÜÄÄЩhttpÇëÇóʱת·¢µ½mongrel cluster£¬ÒòΪnginx´¦Àí¾²Ì¬ÎļþµÄËÙ¶ÈÔ¶Ô¶¸ßÓÚmongrel£¬ËùÒÔÒ»°ãµ±ÇëÇóµÄ·¾¶²»´æÔÚµÄʱºò²Å½«ÇëÇóת·¢µ½mongrel cluster£º

server {
listen 80;
server_name example.com;
#ÉèÖ÷þÎñÆ÷¸ùĿ¼ΪrailsÓ¦ÓõÄpublicĿ¼£¬Õâ¸öĿ¼Ï·ÅÁ˶ÔÍâµÄ¾²Ì¬Îļþ
root /usr/rails/public;
index index.html index.htm;
location / {
#ת·¢Ê±±£ÁôÔ­ÓÐÇëÇóµÄIPÐÅÏ¢ºÍHOSTÐÅÏ¢
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect false;

if (-f $request_filename/index.html) {
rewrite (.*) $1/index.html break;
}
if (-f $request_filename.html) {
rewrite (.*) $1.html break;
}
#µ±ÇëÇóµÄÎļþ²»´æÔÚ£¬×ª·¢µ½mongrel cluster
if (!-f $request_filename) {
proxy_pass http://mongrel;
break;
}
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}

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