[Bug 1766542] Re: Installation blocks when the machine is behind a proxy server

[Julian Andres Klode]

OK, so archive.ubuntu.com has 4 AAAA and 4 A entries, meaning that

16.04 waits 16 minutes (8 * 2 minutes)
18.04 waits 2 minutes, 2 seconds (2 minutes + 8 * 250 milliseconds)

Now we can shorten that further to one of the following:

* 12 seconds (10 + 8 * 250 ms)
* 22 seconds (20 + 8 * 250 ms)
* 32 seconds (30 + 8 * 250 ms)

30 seconds seems like a good conservative choice with reasonable
behavior.

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https://bugs.launchpad.net/bugs/1766542

Title:
  Installation blocks when the machine is behind a proxy server

Status in OEM Priority Project:
  Confirmed
Status in apt package in Ubuntu:
  New
Status in ubiquity package in Ubuntu:
  Incomplete
Status in apt source package in Bionic:
  New
Status in ubiquity source package in Bionic:
  New

Bug description:
  When the machine is behind a proxy server, the installation will block
  for a while (several minutes) to retrieve the package lists. The
  timeouts are too long and makes user feels the machine may have some
  problems.

  The symptom is similar with bug #14599, but it seems the apt-setup
  module was rewritten.

  Another method to trigger this issue is to make the machine cannot
  access to the Internet, for instance: a wrong gateway.

  Image: 16.04

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