I'm having nginx + thin (rails) environment and somehow all my responses which are larger than 74KB are truncated to that size (ie. my json response which have up to 100KB are truncated to 74KB, same happens with larger HTMLs).

When i point browser to thin server response looks fine. Here is my nginx conf:

user xxxxxx;
worker_processes 1;

events {
worker_connections 1024;
}


http {
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" "$upstream_addr"';

access_log logs/access.log main;

sendfile on;

keepalive_timeout 65;

upstream thin {
server 127.0.0.1:3000;
server 127.0.0.1:3001;
}

server {
listen 80;
server_name localhost;
root /home/xxxx/Rails/yyyyy/public/;

location / {
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 off;

auth_basic "Restricted";
auth_basic_user_file htpasswd;

# don't page cache any POST requests
if ($request_method = POST) {
proxy_pass http://thin;
break;
}

if (-f $request_filename/index.html) {
rewrite (.*) $1/index.html break;
}
if (-f $request_filename.html) {
rewrite (.*) $1.html break;
}
if (!-f $request_filename) {
proxy_pass http://thin;
break;
}
}

error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}

}
}


Best