[Duplicity-talk] Fwd: AssertionError on every attempt

[Bruce Merry]

Hi

(apologies if this shows up twice - my first attempt was without
subscribing to the list, and since it didn't show up in the list
archives I'm assuming it went to the bit-bucket)

I've somehow managed to get my Google Drive into a state where every
time I run duplicity I get the error below. This occurred after I
started a full backup, which crashed on volume 27, restarted it, and
it later crashed again (I don't have the errors messages from those
backups saved, sorry). I'm using the PyDrive backend, specifically
https://code.launchpad.net/~bmerry/duplicity/pydrive-regular. I've
tried
- running duplicity cleanup (hits the same assertion)
- wiping out the .cache/duplicity directory to force resync (resyncs,
then hits the same assertion)

I've since noticed that I have two copies of
duplicity-full.20150607T094026Z.vol27.difftar.gpg in my Google Drive,
which probably explains why I get the assertion error, but I'm not
sure how to safely recover from this without ending up with a
corrupted backup. Is it safe to just delete one of them?


Traceback (most recent call last):
  File "/usr/local/bin/duplicity", line 1523, in <module>
    with_tempdir(main)
  File "/usr/local/bin/duplicity", line 1517, in with_tempdir
    fn()
  File "/usr/local/bin/duplicity", line 1371, in main
    do_backup(action)
  File "/usr/local/bin/duplicity", line 1396, in do_backup
    globals.archive_dir).set_values()
  File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
line 710, in set_values
    self.get_backup_chains(partials + backend_filename_list)
  File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
line 835, in get_backup_chains
    add_to_sets(f)
  File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
line 823, in add_to_sets
    if set.add_filename(filename):
  File "/usr/local/lib/python2.7/dist-packages/duplicity/collections.py",
line 105, in add_filename
    (self.volume_name_dict, filename)
AssertionError: ({27:
'duplicity-full.20150607T094026Z.vol27.difftar.gpg', 28:
'duplicity-full.20150607T094026Z.vol28.difftar.gpg', 29:
'duplicity-full.20150607T094026Z.vol29.difftar.gpg', 30:
'duplicity-full.20150607T094026Z.vol30.difftar.gpg', 31:
'duplicity-full.20150607T094026Z.vol31.difftar.gpg', 32:
'duplicity-full.20150607T094026Z.vol32.difftar.gpg', 33:
'duplicity-full.20150607T094026Z.vol33.difftar.gpg', 34:
'duplicity-full.20150607T094026Z.vol34.difftar.gpg', 35:
'duplicity-full.20150607T094026Z.vol35.difftar.gpg', 36:
'duplicity-full.20150607T094026Z.vol36.difftar.gpg', 37:
'duplicity-full.20150607T094026Z.vol37.difftar.gpg', 38:
'duplicity-full.20150607T094026Z.vol38.difftar.gpg', 39:
'duplicity-full.20150607T094026Z.vol39.difftar.gpg', 40:
'duplicity-full.20150607T094026Z.vol40.difftar.gpg', 41:
'duplicity-full.20150607T094026Z.vol41.difftar.gpg', 42:
'duplicity-full.20150607T094026Z.vol42.difftar.gpg', 43:
'duplicity-full.20150607T094026Z.vol43.difftar.gpg', 44:
'duplicity-full.20150607T094026Z.vol44.difftar.gpg', 45:
'duplicity-full.20150607T094026Z.vol45.difftar.gpg', 46:
'duplicity-full.20150607T094026Z.vol46.difftar.gpg', 47:
'duplicity-full.20150607T094026Z.vol47.difftar.gpg', 48:
'duplicity-full.20150607T094026Z.vol48.difftar.gpg', 49:
'duplicity-full.20150607T094026Z.vol49.difftar.gpg', 50:
'duplicity-full.20150607T094026Z.vol50.difftar.gpg', 51:
'duplicity-full.20150607T094026Z.vol51.difftar.gpg', 52:
'duplicity-full.20150607T094026Z.vol52.difftar.gpg', 53:
'duplicity-full.20150607T094026Z.vol53.difftar.gpg', 54:
'duplicity-full.20150607T094026Z.vol54.difftar.gpg', 55:
'duplicity-full.20150607T094026Z.vol55.difftar.gpg', 56:
'duplicity-full.20150607T094026Z.vol56.difftar.gpg', 57:
'duplicity-full.20150607T094026Z.vol57.difftar.gpg', 58:
'duplicity-full.20150607T094026Z.vol58.difftar.gpg', 59:
'duplicity-full.20150607T094026Z.vol59.difftar.gpg', 60:
'duplicity-full.20150607T094026Z.vol60.difftar.gpg'},
'duplicity-full.20150607T094026Z.vol27.difftar.gpg')


Thanks
Bruce
--
Dr Bruce Merry
bmerry <@> gmail <.> com
http://www.brucemerry.org.za/
http://blog.brucemerry.org.za/