title: Sql Alchemy connection time Out
body: <p>I am using <code>sqlalchemy</code> with <code>MySQL</code>, and executing query with sql expression. When executing a number of query then it time out. I found an <a href="http://groups.google.com/group/sqlalchemy/browse_thread/thread/b2bf9687aaee38af/cd9bcaed89b4dbb8" rel="noreferrer">answer</a> but it is not clear to me. Please, any one can help me?</p>
  
  <blockquote>
    <p>TimeoutError: QueuePool limit of size 5 overflow 10 reached, connection timed out, timeout 30 </p>
  </blockquote>