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Steps
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=====
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1. Set up mongrel_cluster
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follow: http://mongrel.rubyforge.org/docs/mongrel_cluster.html
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run it with user ioi:ioi
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2. Set up Apache
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in general follow:
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http://mongrel.rubyforge.org/docs/apache.html
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2.1 enable mods
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run:
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sudo a2enmod rewrite
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sudo a2enmod proxy
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sudo a2enmod proxy_balancer
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sudo a2enmod proxy_http
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sudo a2enmod deflate
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sudo a2enmod headers
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2.2 edit virtual host at /etc/apache2/site-(available|enabled)
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added:
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===========================================
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<directory "/home/ioi/web_grader/public/">
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Options FollowSymLinks
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AllowOverride None
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Order allow,deny
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Allow from all
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</directory>
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<proxy balancer://mongrel_cluster>
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BalancerMember http://127.0.0.1:8000
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BalancerMember http://127.0.0.1:8001
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BalancerMember http://127.0.0.1:8002
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BalancerMember http://127.0.0.1:8003
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BalancerMember http://127.0.0.1:8004
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Allow from all
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</proxy>
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# can't use proxypass because we want access to balancer-manager
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#ProxyPass / balancer://mongrel_cluster/
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#ProxyPassReverse / balancer://mongrel_cluster/
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<Location /balancer-manager>
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SetHandler balancer-manager
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</Location>
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RewriteEngine On
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# Uncomment for rewrite debugging
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RewriteLog "/var/log/apache2/ioi_rewrite.log"
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RewriteLogLevel 9
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# Rewrite to check for Rails cached page
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RewriteRule ^([^.]+)$ $1.html [QSA]
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# Redirect all non-static requests to cluster
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RewriteCond %{REQUEST_URI} !^/balancer-manager/(.*)$
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RewriteCond %{DOCUMENT_ROOT}/%{REQUEST_FILENAME} !-f
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RewriteRule ^/(.*)$ balancer://mongrel_cluster%{REQUEST_URI} [P,QSA,L]
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===========================================
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jittat-