title: tomcat hot deploy war file to live site
body: <p>From <a href="http://agoodcoder.blogspot.co.uk/2011/03/tomcat-7-hot-deploy-rolling-upgrade.html" rel="nofollow">this blog</a> :</p>
  
  <blockquote>
    <p>All you need to do is to</p>
    
    <ol>
    <li><p>keep your old app foo.war untouched</p></li>
    <li><p>name your new version of app to foo##0001.war and upload to webapps folder</p></li>
    </ol>
    
    <p>The old session will use foo.war, and new user will use foo##0001.war.</p>
  </blockquote>
  
  <p>Is that the best way to deploy a new version of your app without restarting the webserver ?And is the string literally correct, <code>myApp.war</code> would be replaced with <code>myApp##0001.war</code>, the string seems rather unusual.</p>