I successfully upgraded the nginx version to 0.8.11. Nginx is used now
to load balance the requests and also as reverse caching proxy.
The problem is I cannot synchronize to all without getting the following error.
Configuration error detected: '2009/08/31 09:23:04 [emerg] 7536#0:
unknown directive "proxy_cache_path" in /etc/nginx/nginx.conf:29
2009/08/31 09:23:04 [emerg] 7536#0: the configuration file
/etc/nginx/nginx.conf test failed'. Reverting configuration.
I did everything I could to use the same directory for the new nginx
0.8.11 as the original nginx 0.5.3 application. I used the same
compilation option. I just put the binaries in /usr/local/
Then I edited the init script to pint to this binary.
Everything works fine except I cannot bundle the image. What should I
do. Is this error important or just an alert?
There is a second problem with the bundle of the app instance. In the
app-servers.include file was an IP that didn't belong to me ;-( So I
retrieve the internal IP address of the app instance, copy it there
and it works.
FYI. Here is the nginx.conf from scalr modified to manage reverse proxy caching.
user www-data;
worker_processes 4;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;
events {
worker_connections 4096;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent '
'"$http_referer" "$http_user_agent"'
'"$upstream_cache_status"';
access_log /var/log/nginx/access.log main;
sendfile on;
keepalive_timeout 30;
tcp_nodelay on;
include /etc/nginx/app-servers.include;
proxy_cache_path /var/www/fbcaldotcom/cache levels=1:2 keys_zone=one:10m;
proxy_temp_path /temp/cache;
server {
listen 80;
if ( $remote_addr = 127.0.0.1 ) {
rewrite ^(.*)$ /500.html last;
return 302;
}
location / {
proxy_pass http://backend;
proxy_cache one;
proxy_cache_key backend$request_uri;
proxy_cache_valid 200 3h;
proxy_cache_use_stale error timeout invalid_header;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
error_page 500 501 = /500.html;
error_page 502 503 504 = /502.html;
}
location /500.html {
root /var/www/nginx-default;
}
location /502.html {
root /var/www/nginx-default;
}
}
}
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