Infrastructure/Mirroring/Tiering
From FedoraProject
Contents |
Tiering
Fedora mirror servers use Tiering, whereby a select few fast mirrors get read access to the master rsync servers, and all the other mirrors pull from those mirrors.
It turns out, 9 of our 10 Tier 0 or Tier 1 mirrors are available over Internet2. And, over half of our total mirrors are reachable over Internet2. So, let's make use of that whereever we can.
For our purposes, define:
- master: The Red Hat servers download*.fedora.redhat.com.
- Tier 0: The fast mirrors which pull from Red Hat's Internet2-connected master
- Tier 1: The fast mirrors which pull from the Tier 0 servers (or one of the other masters).
- Tier 2: The mirrors that pull from the Tier 1 servers.
Properties of Tier 0 and 1 mirrors:
- Limit the number of Tier 1 mirrors to 10, to ensure adequate bandwidth for these. Adjust number up or down depending on capability of the masters.
- Must carry everything under fedora-enchilada and fedora-epel. This allows Tier 2 mirrors to exclude what they wish, but get everything if they so wish. This means at least 1TB of disk space for the Fedora portion of this server.
- Must have a 1 Gigabit connection to the Internet, or faster.
- Must have an active, available, responsive mirror administrator during the days content is staged.
- Must have at least 2 Internet2-connected Tier 1 mirrors.
- Must have at least 1 Tier 1 mirror on each continent for which we have Tier 2 mirrors
- Must serve private rsync
Tier 0 Mirrors
Tier 0 mirrors can pull from Red Hat directly over the Internet2 connection.
| Server | Comment | Contact for ACL |
| fedora-archives.ibiblio.org | Internet2 / National Lamba Rail (NLR) connected hosts. | Don Sizemore <dls at metalab.unc.edu>. No ACLs - open for syncing. |
| archive.linux.duke.edu | Internet2. Uses ACL from MirrorManager database. | Drew Stinnett <drew.stinnett at duke.edu> (spacepope on IRC) |
Tier 1 Mirrors
Tier 1 mirrors pull from one of the Tier 0 mirrors.
| Server | Comment | Contact for ACL | |
| kernel.org | mirrors1.kernel.org, mirrors2.kernel.org - USx2, mirrors3.kernel.org - NL, mirrors4.kernel.org - SE Do not sync from mirrors.kernel.org, choose one of the ones above and use that. | <ftpadmin at kernel.org> | |
| wpi.edu | IPv6-connected or Internet2-connected mirrors only | Chuck Anderson <cra at wpi.edu> | |
| rsync.hrz.tu-chemnitz.de | rsync.hrz.tu-chemnitz.de::fedora-enchilada/. Uses ACL from MirrorManager database . | guenther.fischer at hrz.tu-chemnitz.de | |
| fedora-rsync.ftp.pub.2iij.net | rsync://fedora-rsync.ftp.pub.2iij.net/fedora-enchilada | mirror-contact at iij.ad.jp | |
| sunsite.mff.cuni.cz | |||
| ftp.heanet.ie | IPv6 and Internet2 connectivity. ftp.heanet.ie::fedora-enchilada, ftp.heanet.ie::fedora-epel | mirrors at heanet.ie | |
| mirror.speedpartner.de | IPv4 and IPv6 | mirror at speedpartner.de | |
| fedora.c3sl.ufpr.br | South America | Carlos Carvalho carlos at fisica.ufpr.br |
Master Mirrors
- download-i2.fedora.redhat.com in Raleigh, NC, USA (Internet2, NLR, and those reachable over NLR only)
- download1.fedora.redhat.com is offline, no ETA on its return. DNS for it points at download3.
- download2.fedora.redhat.com is offline, no ETA on its return. No DNS.
- download3.fedora.redhat.com in Phoenix, AZ, USA
- download4.fedora.redhat.com in Phoenix, AZ, USA
- download5.fedora.redhat.com in Phoenix, AZ, USA
