Nginx lb + CouchDB

gistfile1.nginxconf

# client body
client_header_timeout 3600;
client_body_timeout 3600;
client_max_body_size 128m;

# proxy options
proxy_read_timeout 3600;
proxy_connect_timeout 3600;

#ignore_invalid_headers on;
send_timeout 3600;

# req rate limitation
#limit_req_zone $binary_remote_addr zone=one:100m  rate=5r/s;

upstream couchdb_cluster {
    server couchdb01;
    server couchdb02;
}
  
server {
    listen 127.0.0.1:8080;

    server_name lb;

    root /usr/share/nginx/www;
    index index.html index.htm;
    
    #access_log /var/log/nginx/access_db-lb.optin-machine.com.log;

    # basic couch db routing
    location / {
        # allows a user no more than 5 request per second on average, with 
        # bursts of no more than 10 queries.
        #limit_req   zone=one  burst=10;
        try_files $uri $uri/ @couchdb;
        
        allow 127.0.0.1;
        deny all;
    }

    location @couchdb {
        proxy_pass http://couchdb_cluster;
        proxy_redirect off;
        proxy_buffering off; # don't break continuous _changes
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    if ($request_method ~ ^(DELETE)$ ) {
        return 444;
    }
}