Increase number of fast and reliable mirrors
Let's try to put a tiny bit of work into this, e.g. by contacting Debian mirrors.
If it succeeds, then it's a pretty efficient way to:
- serve our users better (even after #18263 (closed) is implemented)
- ask slower mirrors to sync' less often than hourly, so that fast mirrors get the new data earlier while releasing (the bottleneck is our rsync server's bandwidth); in some cases this will speed up the release process (once #19335 (closed) is done, we'll only wait until enough fast mirrors have the image before releasing)
Edited by intrigeri