title: MongoDB log file size
body: <p>I'm developing a system around mongodb (version 2.0.1) environment for finance company.
  I have noticed that mongodb log file keep growing - in couple of days it became 65 GB consuming all hard disk space.</p>
  
  <p>How can i limit mongodb log file? Is there a way to tell mongo not to log any operation?
  I already tell mongo to use minimal log but it's not enough.
  Also, rotateFile command is not working in windows.
  The file is exclusive open by mongo so i can't delete or truncate.</p>
  
  <p>Regards</p>