[Bug 1646872] Re: Unable to connect to two of the Singapore mirrors

[David Lawson]

Arguably this is an apt bug because it should cycle to the next
available address, but could you open a ticket with canonical IS by
mailing rt at ubuntu.com and we'll sort out what's going on with those two
v6 addresses.

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https://bugs.launchpad.net/bugs/1646872

Title:
  Unable to connect to two of the Singapore mirrors

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Two of the Singapore mirrors are not up, causing apt-get to halt for
  at least a minute before timing out.

  Here are the IP-addresses for the Singapore mirrors:

  $ host sg.archive.ubuntu.com
  sg.archive.ubuntu.com has address 91.189.88.149
  sg.archive.ubuntu.com has address 91.189.88.162
  sg.archive.ubuntu.com has address 91.189.88.152
  sg.archive.ubuntu.com has address 91.189.88.161
  sg.archive.ubuntu.com has IPv6 address 2001:67c:1560:8001::11
  sg.archive.ubuntu.com has IPv6 address 2001:67c:1360:8001::17
  sg.archive.ubuntu.com has IPv6 address 2001:67c:1560:8001::14
  sg.archive.ubuntu.com has IPv6 address 2001:67c:1360:8001::21

  Out of these, the following two addresses are unavailable and when
  attempting to connect to them, apt-get will hang:

  2001:67c:1560:8001::14
  2001:67c:1560:8001::17

  All of the IPv4 addresses as well as the remaining IPv6 addresses
  works fine.

  If these servers are never coming back online, I'd suggest removing
  those two IP addresses from the DNS entry for the host
  sg.archive.ubuntu.com

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.18
  ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24
  Uname: Linux 4.4.0-47-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Fri Dec  2 23:36:54 2016
  InstallationDate: Installed on 2014-12-11 (722 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to xenial on 2016-04-29 (216 days ago)

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