GNU logs - #45266, boring messages

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Subject: bug#45266: "guix gc" needs free disk space to function
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It would be better if guix gc could run on a disk that was completely
full, as right now it cannot be used to free space on a full disk.

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To: Nathan Dehnel <ncdehnel@HIDDEN>
Subject: bug#45266: Acknowledgement ("guix gc" needs free disk space to
 function)
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Date: Wed, 16 Dec 2020 06:38:01 +0000

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Subject: bug#45266: "guix gc" needs free disk space to function
Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
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 (Nathan Dehnel's message of "Wed, 16 Dec 2020 00:36:54 -0600")
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Hi,

Nathan Dehnel <ncdehnel@HIDDEN> skribis:

> It would be better if guix gc could run on a disk that was completely
> full, as right now it cannot be used to free space on a full disk.

The daemon reserves a bit of extra space before starting operation (see
=E2=80=98reserve-space?=E2=80=99 in (guix store)), which should be enough t=
o gracefully
handle situations where builds are filling the disk.

However, there can also be non-Guix processes filling the disk, to the
point where it=E2=80=99s completely full, and at that point sqlite3 (which =
the
daemon uses) may be unable to operate.

I=E2=80=99m afraid there=E2=80=99s little we can do in this case.

Thoughts?

Ludo=E2=80=99.

Message sent to bug-guix@HIDDEN:

Subject: bug#45266: "guix gc" needs free disk space to function
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From: Nathan Dehnel <ncdehnel@HIDDEN>
Date: Tue, 22 Dec 2020 12:05:04 -0600
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>The daemon reserves a bit of extra space before starting operation (see
=E2=80=98reserve-space?=E2=80=99 in (guix store)), which should be enough t=
o gracefully
handle situations where builds are filling the disk.

>However, there can also be non-Guix processes filling the disk, to the
point where it=E2=80=99s completely full, and at that point sqlite3 (which =
the
daemon uses) may be unable to operate.

I didn't experience this. Guix pull filled the disk, which prevented
the gc from working. It's possible some other process was writing in
the background, but I had built an image which was almost completely
devoid of programs and services.

>I=E2=80=99m afraid there=E2=80=99s little we can do in this case.

>Thoughts?

Copy the database into tmpfs temporarily?

On Tue, Dec 22, 2020 at 8:37 AM Ludovic Court=C3=A8s <ludo@HIDDEN> wrote:
>
> Hi,
>
> Nathan Dehnel <ncdehnel@HIDDEN> skribis:
>
> > It would be better if guix gc could run on a disk that was completely
> > full, as right now it cannot be used to free space on a full disk.
>
> The daemon reserves a bit of extra space before starting operation (see
> =E2=80=98reserve-space?=E2=80=99 in (guix store)), which should be enough=
 to gracefully
> handle situations where builds are filling the disk.
>
> However, there can also be non-Guix processes filling the disk, to the
> point where it=E2=80=99s completely full, and at that point sqlite3 (whic=
h the
> daemon uses) may be unable to operate.
>
> I=E2=80=99m afraid there=E2=80=99s little we can do in this case.
>
> Thoughts?
>
> Ludo=E2=80=99.

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merge 45266 41484
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