apache

<Proxy balancer://loco>
  BalancerMember http://localhost:15000 
  BalancerMember http://localhost:15001
  BalancerMember http://localhost:15002
  BalancerMember http://localhost:15003
  BalancerMember http://localhost:15004
</Proxy>

<VirtualHost *:80>

  ServerName loco2.stemcel.co.uk

  ProxyPass / balancer://loco/
  ProxyPassReverse / balancer://loco/

  <Location />
    Allow from all

        ## basic authentication
        AuthType Basic
        AuthUserFile /etc/apache2/sites-enabled/.htpasswd
        AuthName "Loco2 staging site"
        require valid-user

  </Location>

  <Location /balancer-manager>
    SetHandler balancer-manager
  </Location>
</VirtualHost>

gistfile1.txt

MissingSourceFile (no such file to load -- mysql):
    /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'

gistfile2.txt

gem list

*** LOCAL GEMS ***

actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)
cgi_multipart_eof_fix (2.5.0)
daemons (1.0.10)
eventmachine (0.12.6, 0.12.2)
fastthread (1.0.1)
fiveruns-memcache-client (1.5.0.5)
gem_plugin (0.2.3)
god (0.7.12)
mechanize (0.9.2, 0.9.0)
mongrel (1.1.5)
mysql (2.7)
nokogiri (1.2.1, 1.1.1)
rails (2.2.2)
rake (0.8.4, 0.8.3)
starling-starling (0.9.9)