"413 Request Entity Too Large" Error Rails 3.2 Passenger Phusion - ruby-on-rails-3

Question

I have a rails app using Rails 3.2.3, Ruby 1.9.3, and Phusion Passenger with the Nginx module. App users need to upload large files. I added the directive client_max_body_size 500M; to the location block in the nginx.conf (below) and stopped and started nginx through using Ctrl-C to stop nginx and passenger start to restart nginx. However, when I try to upload a file that is 127 mb, I get the error "413 Request Entity Too Large". Can someone let me know what I am overlooking?
Thanks,
My nginx.conf
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
passenger_root /Users/mcmahling/.rvm/gems/ruby-1.9.3-p125/gems/passenger-3.0.12;
passenger_ruby /Users/mcmahling/.rvm/wrappers/ruby-1.9.3-p125/ruby;
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 165;
#gzip on;
server {
listen 80;
server_name localhost;
client_max_body_size 4G;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
client_max_body_size 4G;
client_body_buffer_size 128k;
client_body_temp_path /usr/local/nginx/client_body_temp;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443;
# server_name localhost;
# ssl on;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_timeout 5m;
# ssl_protocols SSLv2 SSLv3 TLSv1;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}

Answer 1

Change client_max_body_size 4G; to 4g; or 500m; insde the server block

Answer 2

Judging from Nginx Error 413 and http://forum.slicehost.com/index.php?p=/discussion/1714/nginx-413-when-uploading-file-1mb-or-larger/p1, you might try having client_max_body_size specified just a single time, possibly only in the server section, although that seems dubious.
Also, as mentioned in another response, I think you want '4g' as the value.

Answer 3

This is just a wild guess, and since I know neither Rails, Ruby nor nginx, I can not really find out if my idea applies, but here is it anyway, maybe it helps...
Did you check by what method the files are transfered? Your problem reminds me of a situation where my Ajax-requests failed mystically. After some research, I found out all requests where sent via GET (which was the wrong way to do it in the first place). Changing it to POST solved my problem then.
Since you are sending files there, it might be a totally different thing (I had data about 2KiB in size or so).

Answer 4

client_max_body_size 10m;
works for me, with ';' at the and, and restart Nginx and Unicorn, or apache...etc
Like #MaffooClock says, inside the http block.