Description of problem: In the stage environment, repodata is regenerated using the same method that we used to use in prod. However, during heavy RHEL testing, the following scenario plays out: * someone pushes new packages to stage channels * TPS gets run, and hammers XMLRPC * stage xmlservers attempt to regenerate repodata, and become overwhelmed with requests from TPS * stage xmlservers become unresponsive * RHEL-QE complains to Eng Support that stage is down Ideally, we could use the new repodata regen process in stage, but have some kind of email or trigger that tells TPS when it can run.