[Bug 525674] Re: apt-check hangs, preventing login via SSH

[RichardNeill]

Interestingly, 14.04 seems to be much better at this than 12.04, takling around 1.5 sec rather than 12.
However, it's interesting how much faster it can still be without this. 

Here is a measurement I made.  This is 14.04 server on the LAN, with ssh-key authentication, and I repeated serveral times:
   time  ssh server_on_lan true

With the /etc/update-motd.d/*  files unaltered, this takes ~ 1.13 sec
After chmod -x, this takes  ~ 0.15 sec.

I hope that helps,

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https://bugs.launchpad.net/bugs/525674

Title:
  apt-check hangs, preventing login via SSH

Status in “update-notifier” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: update-notifier

  While investigating protracted hangs in the remote login process, I
  noticed that apt-check is called to update the list of available
  updates and print the number of updatable packages in the MOTD. As it
  so happens, apt-check often hangs in mid-update, which effectively
  prevents remote login via SSH from taking place.

  ProblemType: Bug
  Architecture: i386
  Date: Mon Feb 22 12:20:16 2010
  DistroRelease: Ubuntu 10.04
  Package: update-notifier-common 0.96
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=fi_FI.UTF-8
   PATH=(custom, user)
   LANG=fi_FI.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-14.20-generic
  SourcePackage: update-notifier
  Uname: Linux 2.6.32-14-generic i686

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