GNU logs - #39051, boring messages

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Subject: bug#39051: nginx caching headers are broken due to epoch store timestamps
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I=E2=80=99ve been having hard-to-debug caching issues serving up static =
files
with nginx. It turns out this is due to nginx computing e-tag headers
from file timestamps, which are all epoch in the guix store.

I=E2=80=99ve fixed this on my server by applying a patch from Nix:
=
https://github.com/robx/guix/commit/4b406f5bc608b3c0e18e15795d8fe61d3477a3=
e2

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To: Robert Vollmert <rob@HIDDEN>
Subject: bug#39051: Acknowledgement (nginx caching headers are broken due
 to epoch store timestamps)
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Subject: bug#39051: nginx caching headers are broken due to epoch store timestamps
Resent-From: =?UTF-8?Q?G=C3=A1bor?= Boskovits <boskovits@HIDDEN>
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From: =?UTF-8?Q?G=C3=A1bor?= Boskovits <boskovits@HIDDEN>
Date: Thu, 9 Jan 2020 12:00:16 +0100
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Hello,

Robert Vollmert <rob@HIDDEN> ezt =C3=ADrta (id=C5=91pont: 2020. jan. 9.=
, Cs, 11:54):
>
> I=E2=80=99ve been having hard-to-debug caching issues serving up static f=
iles
> with nginx. It turns out this is due to nginx computing e-tag headers
> from file timestamps, which are all epoch in the guix store.
>
> I=E2=80=99ve fixed this on my server by applying a patch from Nix:
> https://github.com/robx/guix/commit/4b406f5bc608b3c0e18e15795d8fe61d3477a=
3e2

this is a known issue. Could you look around the tracker and merge?
>
>
>
>

Also, on the long run it would be nice to contribute a working etags
computation to nginx, that
is based on the file content hash, or something like that. Does that make s=
ense?

Best regards,
g_bor
--=20
OpenPGP Key Fingerprint: 7988:3B9F:7D6A:4DBF:3719:0367:2506:A96C:CF63:0B21

Message sent to bug-guix@HIDDEN:

Subject: bug#39051: nginx caching headers are broken due to epoch store timestamps
Resent-From: Robert Vollmert <rob@HIDDEN>
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I don=E2=80=99t see anything here: =
https://debbugs.gnu.org/cgi/pkgreport.cgi?package=3Dguix;include=3Dsubject=
%3Anginx

> On 9. Jan 2020, at 12:00, G=C3=A1bor Boskovits <boskovits@HIDDEN> =
wrote:
>=20
> Hello,
>=20
> Robert Vollmert <rob@HIDDEN> ezt =C3=ADrta (id=C5=91pont: 2020. =
jan. 9., Cs, 11:54):
>>=20
>> I=E2=80=99ve been having hard-to-debug caching issues serving up =
static files
>> with nginx. It turns out this is due to nginx computing e-tag headers
>> from file timestamps, which are all epoch in the guix store.
>>=20
>> I=E2=80=99ve fixed this on my server by applying a patch from Nix:
>> =
https://github.com/robx/guix/commit/4b406f5bc608b3c0e18e15795d8fe61d3477a3=
e2
>=20
> this is a known issue. Could you look around the tracker and merge?
>>=20
>>=20
>>=20
>>=20
>=20
> Also, on the long run it would be nice to contribute a working etags
> computation to nginx, that
> is based on the file content hash, or something like that. Does that =
make sense?
>=20
> Best regards,
> g_bor
> --=20
> OpenPGP Key Fingerprint: =
7988:3B9F:7D6A:4DBF:3719:0367:2506:A96C:CF63:0B21

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merge 37207 39051
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Hi,

G=C3=A1bor Boskovits <boskovits@HIDDEN> skribis:

> Hello,
>
> Robert Vollmert <rob@HIDDEN> ezt =C3=ADrta (id=C5=91pont: 2020. jan. =
9., Cs, 11:54):
>>
>> I=E2=80=99ve been having hard-to-debug caching issues serving up static =
files
>> with nginx. It turns out this is due to nginx computing e-tag headers
>> from file timestamps, which are all epoch in the guix store.
>>
>> I=E2=80=99ve fixed this on my server by applying a patch from Nix:
>> https://github.com/robx/guix/commit/4b406f5bc608b3c0e18e15795d8fe61d3477=
a3e2
>
> this is a known issue. Could you look around the tracker and merge?

Done.  Previous discussion:

  https://issues.guix.gnu.org/issue/37207

Thanks,
Ludo=E2=80=99, also eager to see a proper fix!

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retitle 37207 nginx serving files from the store returns Last-Modified = Epoch
quit

Last modified: Sat, 11 Jan 2020 21:30:02 UTC

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