Comment # 1 on bug 911575 from Neil Rickert

Yes, I see this.

I am not doing osc builds.  But I see it when downloading an iso, and I see
surprisingly slow update downloading.

It isn't a big problem for downloading an iso.  I use the meta link.  The
download starts slowly, but aria2c quickly finds faster sources.

Here's what I get with a mirror lookup for a tumbleweed iso:
 ---
List of best mirrors for IP address 2602:306:3afd:56b0:bc53:643c:1e1c:6a6b,
located in an unknown country:
Found 27 mirrors in other parts of the world:
 ---

However, if I add an entry to "/etc/hosts" with only IPv4 address (for
dowload.opensuse.org), I then see:

 ---
List of best mirrors for IP address 99.175.213.107, located at
41.839199,-88.361198 in United States (US), network 99.168.0.0/13 (autonomous
system 7018):

Found 3 mirrors which handle this country (US):

   
http://sfo-korg-mirror.kernel.org/opensuse/factory/iso/openSUSE-Tumbleweed-Rescue-CD-x86_64-Snapshot20141230-Media.iso
(us, prio 100)
   
http://mirrors1.kernel.org/opensuse/factory/iso/openSUSE-Tumbleweed-Rescue-CD-x86_64-Snapshot20141230-Media.iso
(us, prio 65)
   
http://mirrors2.kernel.org/opensuse/factory/iso/openSUSE-Tumbleweed-Rescue-CD-x86_64-Snapshot20141230-Media.iso
(us, prio 65)

Found 1 mirror in other countries, but same continent (NA):

   
http://mirrors.nl.eu.kernel.org/opensuse/factory/iso/openSUSE-Tumbleweed-Rescue-CD-x86_64-Snapshot20141230-Media.iso
(nl, prio 50)

Found 23 mirrors in other parts of the world:
 ---

It looks as if mirrorbrain isn't even trying with IPv6 addresses.

The IPv4 location is a few miles off, but close enough for mirrorbrain.

Other sites that try to locate me with IPv6 are a bit off, but still in the
correct continent.  They sometimes put me in Wisconsin (instead of Illinois),
or in Richardson, Texas (the main office of the ISP).