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

[Jeff Klink]

Agreed on this one, we're also experiencing production failures, but
they happen every night around 1am and simply restarting apache clears
it up.

>From our logs

Start-Date: 2017-03-21  03:22:40
Commandline: /usr/bin/unattended-upgrade
Upgrade: libc6-dev:amd64 (2.23-0ubuntu3, 2.23-0ubuntu6), libc6:amd64 (2.23-0ubuntu3, 2.23-0ubuntu6), locales:amd64 (2.23-0ubuntu3, 2.23-0ubuntu6), libc-bin:amd64 (2.23-0ubuntu3, 2.23-0ubuntu6), libc-dev-bin:amd64 (2.23-0ubuntu3, 2.23-0ubuntu6), multiarch-support:amd64 (2.23-0ubuntu3, 2.23-0ubuntu6)
End-Date: 2017-03-21  03:22:46

Start-Date: 2017-03-22  00:27:23
Commandline: /usr/bin/unattended-upgrade
Upgrade: libc6-dev:amd64 (2.23-0ubuntu6, 2.23-0ubuntu7), libc6:amd64 (2.23-0ubuntu6, 2.23-0ubuntu7), locales:amd64 (2.23-0ubuntu6, 2.23-0ubuntu7), libc-bin:amd64 (2.23-0ubuntu6, 2.23-0ubuntu7), libc-dev-bin:amd64 (2.23-0ubuntu6, 2.23-0ubuntu7), multiarch-support:amd64 (2.23-0ubuntu6, 2.23-0ubuntu7)
End-Date: 2017-03-22  00:27:29

We believe that the unattended upgrade updated and killed us RIGHT
around the same time, thus needing the apache restart.  2 nights in a
row we found these failures, and 2 libc upgrades at the same time.

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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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