Presto logging

[Thomas M Steenholdt]

Jesse Keating wrote:
> On Tuesday 27 March 2007 00:59:57 Thomas M Steenholdt wrote:
>> as long as
>> he remembers to put a simple date in a file, when he's done.
> 
> Which calls for special syncing.  And there is no guarantee that they'll 
> create the date file before or after the sync, so we'll still have to 
> validate the age of the repomd files.
> 

That's the whole point. We need to specify/document/demand the order in 
which the sync phases are carried out (remove date file, sync, create 
date file). The sync part is entirely up to the mirror admin, but the 
other parts are not. For a mirror to be considered official, they'd have 
to obey to these rules (I can't imagine, creating a timestamped file 
would be a huge obstacle for most mirrorsites). The date of the 
repomd.xml file is really another issue. It'll let you know the age of 
the repository contents, but it's not suitable for checking mirror sync 
status since you'd need to remove it for sync, and thus disabling the 
use of your mirror for updating, while syncing. Various different 
approaches can be taken to make this better, but IMO, none that I've 
seen or heard are as simple as the date file method.

/Thomas