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Subject: |
/gnu/store/.links filling the hard drive on foreign distro |
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Date: |
Wed, 22 Mar 2023 10:48:04 +0000 |
Hello,
I'm using guix over a foreign distro (Ubuntu 22.04). I initially installed guix
from the Ubuntu repositories (version 1.3.0-4), and updated as user with guix
pull (work computer: I don't have root access to run the installer script).
The problem is the size of /gnu/store/.links: after garbage collection with "guix gc
--delete-generations=1w", /gnu/store is 17.4 GB in total, and /gnu/store/.links is 14.5 GB
(344120 items, ranging from 93 MB to 4.1 kB each). The garbage collector prints that
"currently hard linking saves 3717.77 MiB".
With a 40GB hard drive, the gnu store regularly fills up all the available
space if I'm not careful. I found from an old issue
(https://issues.guix.gnu.org/24937#1) that 10 millions links should need around
700 MB, so this sounds like a bug.
After garbage collection, there are only 16 profiles left in
/var/guix/profiles/per-user/ for my account: 2 for current-guix, 2 for
guix-profile, and the rest for guix-home (where almost every program is
installed), plus one guix shell profile I keep activated during gc to not
uninstall it. I can't check for the root account, but I'm guessing it contains
only the profile of the initial guix installation. There are no other users.
I tried uninstalling the original guix from the Ubuntu repositories in case the
issue is due to some interference between it and the current guix I pulled as
user, but /var/guix/daemon-socket/socket was gone with it, so I couldn't try to
run the garbage collection.
Elias
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--- Begin Message ---
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Subject: |
Re: bug#62379: /gnu/store/.links filling the hard drive on foreign distro |
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Date: |
Sun, 07 May 2023 11:05:21 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) |
Hi,
Ludovic Courtès <ludo@gnu.org> writes:
> Hi,
>
> Elias Kueny <elias.kueny@posteo.net> skribis:
>
>> The problem is the size of /gnu/store/.links: after garbage collection
>> with "guix gc --delete-generations=1w", /gnu/store is 17.4 GB in
>> total, and /gnu/store/.links is 14.5 GB (344120 items, ranging from 93
>> MB to 4.1 kB each).
>
> This is expected: /gnu/store/.links contains hard links to other files
> in /gnu/store. IOW /gnu/store/.links is a subset of the rest of
> /gnu/store, sharing the same inodes.
>
>> The garbage collector prints that "currently hard linking saves
>> 3717.77 MiB". With a 40GB hard drive, the gnu store regularly fills
>> up all the available space if I'm not careful. I found from an old
>> issue (https://issues.guix.gnu.org/24937#1) that 10 millions links
>> should need around 700 MB, so this sounds like a bug.
>
> Note that the issue you mention was addressed to a large extent in 2021:
>
> https://issues.guix.gnu.org/24937#20
>
Closing, as this is working as intended. If you do not wish to use the
guix-daemon deduplication feature, you can provide it with the
'--disable-deduplication', with the caveat that your hard drive may be
filled even faster :-).
--
Thanks,
Maxim
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