title: Rails Octopus Gem - Master-Slave Replication connection behaviour when slave is down
body: <p>I'm testing this great gem Octopus with Rails 4.0.2 in development.</p>
  
  <p>I created a Slave db and configured octopus as follows <em>(config>shards.yml)</em>:</p>
  
  <pre><code>octopus:
    environments:
      - development
    replicated: true
    fully_replicated: true 
    verify_connection: true
    development:
      slave1:
        host: 192.168.1.12
        adapter: mysql2
        username: slave_reader
        password: my_password
        database: my_server_development
        reconnect: true
  </code></pre>
  
  <p>It works very nice, reading from the Slave and writing to the Master, however if My Slave server is down, I would expect it to redirect to the Master db and get the content, but after some time trying, it throws the error:</p>
  
  <blockquote>
    <p><strong>Can't connect to MySQL server on '192.168.1.12' (113)</strong></p>
  </blockquote>
  
  <p>What can I do to make octopus look for my Master db if the Slave server is shutdown?</p>
  
  <p>Thanks in advance!</p>