How mirrormanager works

Hi Matt, I would like to run by you my understanding of how mirrormanager works, I hope I am not to far from the truth but please if I am let me know :) Mirrormanager is splitted into three parts: the UI, the API and a cron task. The UI is the current TurboGears1 application [1]. People can login in there and register an institution (Site) with one or more sub-domain (Host) each mirroring one or more Product (Fedora, EPEL...). For each sub-domain (Host), there are a number of settings available such as from where the mirror pulls its updates, who can pull from it, restricting the user's country or network. Users manage their mirror there, admin can access any Site/Host and update their settings as well. The API is a cgi script, called in our case by yum, which redirects the user to the closest mirror, active, up-to-date and according to the settings of the mirror. The cron task, runs daily and crawls the mirror to check if they are up to date or not and register in the database which folder are up to date and which are not for every single mirror. This cron task (or is it another?) also generates the publiclist pages [2] using the data it just retrieved about each mirror. I have been trying to figure out how exactly are retrieved the mirrors on publiclist. I found the query used by MM1 [3] and I was wondering if there would not be a way to simplify that. Would it be an option to have the cron task setting a flag on the database saying if a host is up to date or not? Or am I missing some of the information? If we could simplify this part we could drop the cron task generating the publiclist pages and just display them on the fly as part of the UI. As part of the re-write, there is of course the UI since it is TurboGears1, but the CGI script and the cron tasks should not need much changes, would they? Thanks for your help, Pierre [1] https://admin.fedoraproject.org/mirrormanager/ [2] http://mirrors.fedoraproject.org/publiclist/ [3] https://git.fedorahosted.org/cgit/mirrormanager/tree/server/mirrormanager...