[Mageia-sysadm] Tier1 Mirrors

Mon May 9 17:27:02 CEST 2011

nicolas vigier (boklm at mars-attacks.org) wrote on 9 May 2011 17:05:
+ >On Mon, 09 May 2011, Carlos Carvalho wrote:
+ >> I think a tier1 mirror should indeed meet some requirements:
+ >> - minimum bandwidth
+ >> - mirror all of the repository, to allow other mirrors update from
+ >>   them
+ >> - update frequency
+ >
+ >Good idea.
+ >
+ >For tier1 :
+ >- minimum BW: 1Gb/s ?
+
+Fine.
+
+ >- update frequency: 15mn ?
+
+That's very frequent. I think it's not necessary, and it'll produce a
+high load on the master due to the disk scans. For short update
+periods the amount of changes/download is small and the disk scans are
+the biggest load. For now it won't be a problem because the repository
+is still small but later it'll be a bottleneck. Note that it also
+causes a load on the mirrors because there's a disk scan there too. I
+suggest 2h.
+
+That said, we have no problem with whatever frequency you choose.
+
+ >> About the update frequency, you might want to provide triggering for
+ >> the tier1s. It makes updates much more efficient. Some distros use it
+ >> and for Debian it's a requirement for a tier1.
+ >
+ >Interesting. The "Push Mirroring" ?
+ >http://www.debian.org/mirror/push_mirroring
+
+Yes.
+