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From:
Janne Johansson <icepic.dz@gmail.com>
Subject:
Re: sysupgrade/ftp: use a 'needle' to poke through caching layers
To:
Job Snijders <job@openbsd.org>, tech@openbsd.org
Date:
Sat, 4 May 2024 10:44:08 +0200

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Den fre 3 maj 2024 kl 19:22 skrev Kirill A. Korinsky <kirill@korins.ky>:
> > Someone will be installing a snapshot, and the files just get deleted.
> > But that's good, non-existant files can't fail the hash.
>
> If you only keep a previous version of the snapshot, this almost solves the
> problem. I agree that it doubles the disk space, but --delete-delay does
> that already.
>
> And it requires the mirrors to be synchronized quite often.
>
> Ok, it doesn't solve the issue, it covers it with the cost of disk space.

Still makes it hard for people using different arches to run around
looking into various DATE/ folders to see exactly which of them has
the latest armv7, landisk or octeon release which will not be
published daily for L2 mirrors to sync.
Whatever the solution is, it needs to handle 100G large snapshot dirs
partly updating daily, partly updating every 30 days. It's not just
"buy an extra drive for the server".

-- 
May the most significant bit of your life be positive.