Description of problem:

  The "Applicable Errata" report template fails when run against a large number of hosts.  (Approximately 17,000).   It runs for about 12 hours, until it finally ends with a "500 Internal Server error".  (Maybe that 12 hours is a timeout wall?)

  When smaller numbers 

Version-Release number of selected component (if applicable):

  Red Hat Satellite 6.5.2

How reproducible:
Steps to Reproduce:
1.   In the WebUI:  "Monitor"->"Report Templates"->"Applicable Errata"
2.   In the Hosts Filter, specify a search string to match a large number of hosts.  Leave errata filter blank
3.   Submit

Actual results:

   Small numbers return in reasonable amount of time
   Large searches take impossibly long to report

Expected results:

   Reports generate or at least complete in reasonable amount of time.  (i.e. not erroring after 12 hours of waiting to return)