title: Magento Cron Retry on Script Termination
body: <p>I'm having an issue with a Magento cron.  I have a method in a Helper Class firing via the cron, but at some points the the method logic, I exit with an error code (ie <code>error(1)</code>) if there are issues with files that the method is working with.  It seems that if the method doesn't end normally, Magento cron tries to re-run the script until it hits the 'Missed if Not run In' limit set in the config.</p>
  
  <p>I tried exiting with a success code (ie <code>exit(0)</code>), but that doesn't seem to help.  Is there a graceful way to do this so that Magento doesn't try to re-run the script if it errors-out?</p>