[Bug 1674532] Re: glibc update caused NSS ABI break

[fariazz]

I'm having this problem in 14.04 since yesterday, where all my DNS
resolutions take forever, some timeout. I've restarted several times.

This has broken many integrations in our site, is there anything that
can be done to make things work?

This is the version of libc6 that I have:

dpkg -s libc6
Package: libc6
Status: install ok installed
Priority: required
Section: libs
Installed-Size: 10568
Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Architecture: amd64
Multi-Arch: same
Source: glibc
Version: 2.21-0ubuntu4
Replaces: libc6-amd64
Depends: libgcc1
Suggests: glibc-doc, debconf | debconf-2.0, locales
Breaks: hurd (<< 1:0.5.git20140203-1), libtirpc1 (<< 0.2.3), lsb-core (<= 3.2-27), nscd (<< 2.21)
Conflicts: prelink (<= 0.0.20090311-1), tzdata (<< 2007k-1), tzdata-etch
Conffiles:
 /etc/ld.so.conf.d/x86_64-linux-gnu.conf 593ad12389ab2b6f952e7ede67b8fbbf
Description: GNU C Library: Shared libraries
 Contains the standard libraries that are used by nearly all programs on
 the system. This package includes shared versions of the standard C library
 and the standard math library, as well as many others.
Homepage: http://www.gnu.org/software/libc/libc.html
Original-Maintainer: GNU Libc Maintainers <debian-glibc at lists.debian.org>

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https://bugs.launchpad.net/bugs/1674532

Title:
  glibc update caused NSS ABI break

Status in eglibc package in Ubuntu:
  Invalid
Status in glibc package in Ubuntu:
  Fix Committed
Status in eglibc source package in Precise:
  Fix Released
Status in glibc source package in Precise:
  Invalid
Status in eglibc source package in Trusty:
  Fix Released
Status in glibc source package in Trusty:
  Invalid
Status in eglibc source package in Xenial:
  Invalid
Status in glibc source package in Xenial:
  Fix Released
Status in eglibc source package in Yakkety:
  Invalid
Status in glibc source package in Yakkety:
  Invalid

Bug description:
  After installing the libc6_2.19-0ubuntu6.10_amd64_udeb package during
  the automated install of ubuntu 14.04.5, the system was suddenly
  unable to resolve hostnames via dns. Installing -0ubuntu6.9 resolved
  the issue. Reinstalling -ubuntu6.10 broke the system again.

  I note that -ubuntu6.10 was recently added to the archive.

  I am currently unable to install Ubuntu 14.04.5.

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