Hi there,
On Wed, 18 Sep 2024, Daniel Berteaud wrote:
But I also triggered it a few years ago on CentOS 8 (don't have the
details as I do not have access to this system anymore)
Was there any correspondence on the mailing list at the time? I see
nothing from your email address. I wonder if any useful details have
been recorded somewhere. It would especially be interesting to know
about the filesystem - and in particular if it was encrypted ZFS which
so far seems to be a common theme, although obviously not conclusive.
You've seen the problem on two different versions of Perl, so I think
Perl itself might begin to look a less likely candidate, but in both
cases your versions of BackupPC, BackupPC::XS and rsync-bpc are very
similar. Although I'm on ext4, here are the versions I'm using:
Debian 'Bullseye' on arm64.
Perl 5.32.1 - Debian package
BackupPC 4.3.1 )
BackupPC::XS 0.59 ) Installed from Github sources, February 2020)
rsync-bpc 3.1.2.1 )
In your more recent versions there are several potentially interesting
changes from my older versions.
Maybe others who are using ZFS can let us know their versions/sources?
It might also be useful to get some statistics on the populations of
the files being backed up.
Have you tried for example setting $Conf{XferLogLevel} to 4 or greater
to see if there's anything interesting in the logs? I'm sure there
are other logging-type things which could help narrow this down.
I'd be keen to see the problem reproduced on an unencrypted ZFS. :)
--
73,
Ged.
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