title: Dropbox fs.inotify error
body: <p>I frequently get the following Dropbox error. The error message's proposal fixes  the error, but  I'm trying to figure out what it's doing to my system, and perhaps if there is a root cause at play.</p>
  
  <blockquote>
    <p>Unable to monitor entire Dropbox folder hierarchy. Please run </p>
  
  <pre><code>echo fs.inotify.max_user_watches=100000 | sudo tee -a /etc/sysctl.conf; sudo sysctl -p` 
  </code></pre>
    
    <p>and restart Dropbox to fix the problem.</p>
  </blockquote>