[Bug 1244211] Re: system-image-cli hangs indefinitely at "Running group download reactor"

[Michał Sawicz]

On 08.11.2013 20:43, Barry Warsaw wrote:
> That looks like a problem with the download service not sending us the
> necessary signals.   I'll bet it's unreproducible right?;)
>
> Eventually, the reactor would timeout anyway (default is 10 minutes),
> but that probably wouldn't help you debug this much.  If you wanted to,
> you could set the environment variable SYSTEMIMAGE_REACTOR_TIMEOUT to
> some huge number of seconds and see if it's just a slow network
> connection.  While you're doing that, tail /var/log/system-
> image/client.log for details about system-image-dbus and (I think)
> /home/phablet/.cache/ubuntu-download-manager/ubuntu-download-manager
> /ubuntu-download-manager.log (!) for details about what's happening in
> the dl service.
>
> Best guess is that it's just an intermittent networking problem.

Probably, yes. Are we getting progress/error reports from the reactor 
during the download? Even with --verbose, you just have to hope that 
it's actually downloading and not stuck - would be enough to just 
forward some updates from the reactor to the user.

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https://bugs.launchpad.net/bugs/1244211

Title:
  system-image-cli hangs indefinitely at "Running group download
  reactor"

Status in “system-image” package in Ubuntu:
  Incomplete

Bug description:
  My current state:

  $ system-image-cli -i
  current build number: 4
  device name: mako
  channel: trusty-proposed
  last update: 2013-10-24 10:34:55
  version version: 4
  version ubuntu: 20131023
  version device: 20131015

  Trying to downgrade to the stable channel results in system-image-cli
  hanging indefinitely:

  $ system-image-cli -c stable -n -v
  [systemimage] Oct 24 12:52:36 2013 (5326) Looking for blacklist: https://system-image.ubuntu.com/gpg/blacklist.ta
  r.xz
  [systemimage] Oct 24 12:52:36 2013 (5326) Requesting group download:
          https://system-image.ubuntu.com/gpg/blacklist.tar.xz -> /var/lib/system-image/keyring.tar.xz
          https://system-image.ubuntu.com/gpg/blacklist.tar.xz.asc -> /var/lib/system-image/keyring.tar.xz.asc

  [systemimage] Oct 24 12:52:36 2013 (5326) Running group download reactor
  ^C[systemimage] Oct 24 12:52:38 2013 (5326) uncaught exception in state machine
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/systemimage/state.py", line 138, in run_until
      step()
    File "/usr/lib/python3/dist-packages/systemimage/state.py", line 187, in _get_blacklist_1
      get_keyring('blacklist', url, 'image-master')
    File "/usr/lib/python3/dist-packages/systemimage/keyring.py", line 107, in get_keyring
      (ascxz_src, ascxz_dst),
    File "/usr/lib/python3/dist-packages/systemimage/download.py", line 177, in get_files
      self._reactor.run()
    File "/usr/lib/python3/dist-packages/systemimage/reactor.py", line 93, in run
      self._loop.run()
    File "/usr/lib/python3/dist-packages/gi/overrides/GLib.py", line 523, in run
      raise KeyboardInterrupt
  KeyboardInterrupt

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: system-image-cli 1.9.1-0ubuntu1
  Uname: Linux 3.4.0-3-mako armv7l
  ApportVersion: 2.12.5-0ubuntu2
  Architecture: armhf
  Date: Thu Oct 24 12:46:57 2013
  InstallationDate: Installed on 2013-10-23 (0 days ago)
  InstallationMedia: Ubuntu Trusty Tahr (development branch) - armhf (20131023)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: system-image
  UpgradeStatus: No upgrade log present (probably fresh install)

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