severity 1012389 normal
forwarded 1012389 https://bugs.launchpad.net/duplicity/+bug/1499990
tags 1012389 + moreinfo
thanks

On Mon, 06 Jun 2022 10:50:27 +0200, Christophe Lohr writes:
...
>in get_sorted_chains
>    assert len(chain_list) == 2
> AssertionError

looks like you've run into yet another long-unfixed problem that
upstream is ignoring; see the link to the upstream bug report.

apparently long-running and/or often-retried backups can lead to duplicity
losing its smarts.

>What's wrong? 

i don't know.

> What should I do?

i suspect you might get somewhere with a clean slate, ie.
after renaming all of your current backups *and* the cache directories.

to go any further it'll be necessary that you

a) report your full duplicity invocation (without that i have no clue
what backend you're using, whether this was a full backup
only or incremental or whatever)

and b) reproduce the problem from a clean state, run duplicity with -v9 and
provide the resulting log as well (minus personal/private information).


-- 
Alexander Zangerl + GPG Key 2FCCF66BB963BD5F + http://snafu.priv.at/
The determined programmer can write a FORTRAN program in any language.

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