Exception against NameHasNoOwner crashes program

[fantasai]

#529 seems to have been fixed, but now running into

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 177, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 363, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 653, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.gnome.Hamster': no such name

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/hamster", line 138, in on_activate_window
    self._open_window(action.get_name(), data)
  File "/usr/bin/hamster", line 168, in _open_window
    self.overview_controller = Overview()
  File "/usr/lib/python3/dist-packages/hamster/overview.py", line 479, in __init__
    self.find_facts()
  File "/usr/lib/python3/dist-packages/hamster/overview.py", line 533, in find_facts
    self.facts = self.storage.get_facts(start, end, search_terms=search)
  File "/usr/lib/python3/dist-packages/hamster/client.py", line 156, in get_facts
    for fact in self.conn.GetFactsJSON(dbus_range, search_terms)]
  File "/usr/lib/python3/dist-packages/hamster/client.py", line 97, in conn
    '/org/gnome/Hamster'),
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 243, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 250, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 182, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 280, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 653, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.Hamster exited with status 1
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 177, in activate_name_owner
    return self.get_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 363, in get_name_owner
    's', (bus_name,), **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 653, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.gnome.Hamster': no such name

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/hamster", line 138, in on_activate_window
    self._open_window(action.get_name(), data)
  File "/usr/bin/hamster", line 168, in _open_window
    self.overview_controller = Overview()
  File "/usr/lib/python3/dist-packages/hamster/overview.py", line 479, in __init__
    self.find_facts()
  File "/usr/lib/python3/dist-packages/hamster/overview.py", line 533, in find_facts
    self.facts = self.storage.get_facts(start, end, search_terms=search)
  File "/usr/lib/python3/dist-packages/hamster/client.py", line 156, in get_facts
    for fact in self.conn.GetFactsJSON(dbus_range, search_terms)]
  File "/usr/lib/python3/dist-packages/hamster/client.py", line 97, in conn
    '/org/gnome/Hamster'),
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 243, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 250, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 182, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 280, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 653, in call_blocking
    message, timeout)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.Spawn.ChildExited: Process org.gnome.Hamster exited with status 1

This is running 95687ac after executing the following:

☯ ~$ pkill -f hamster-service
☯ ~$ pkill -f hamster-windows-service
☯ ~$ pgrep -af hamster
☯ ~$ sudo ./waf uninstall
☯ ~$ cd temporary/hamster
☯ ~/temporary/hamster$ sudo ./waf uninstall
☯ ~/temporary/hamster$ ./waf configure build
☯ ~/temporary/hamster$ ( umask 0022 && sudo ./waf install; )
☯ ~/temporary/hamster$ hamster

I haven't bisected the commits to find the responsible commit, but as before, 8d281b9 builds and runs correctly.

[ederag]

Thanks for the report.
Looks a lot like #402 (comment).
What's your system ?
Have you followed the instructions, including the find check ?

[mwilck]

This error would occur if hamster-service (which owns org.gnome.Hamster) had exited or crashed. @fantasai, check if you can start the service manually, either by running hamster-service & or by activating org.gnome.Hamster e.g. with d-feet. Also, check your logs for DBus error messages (journalctl --user).

Looks a lot like #402 (comment).

Not quite. in #402, it was hamster-windows-service which failed to start. Here, it's hamster-service.

[ederag]

@fantasai Please just follow #566 (comment) and report back success or failure. We'll see then.

[ederag]

@fantasai Closing because this could scare packagers away for nothing,
but please report either way, I'd really like to have an answer before the v3.0 release.