`guix build --fallback` does not work with offloading

OpenSubmitted by Marius Bakke.
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2 participants
  • Ludovic Courtès
  • Marius Bakke
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unassigned
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M
Marius Bakke wrote on 7 Nov 2017 23:24
(address . bug-guix@gnu.org)
878tfh3eym.fsf@fastmail.com
Hello!

I've noticed that when offloading, --fallback sometimes fails to
actually fall back. Here is a shell transcript:

Toggle snippet (22 lines)
$ ./pre-inst-env guix build --substitute-urls="https://mirror.hydra.gnu.org" --fallback font-arabic-misc
@ substituter-started /gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz /gnu/store/19wpps1nmlg4j1530knl7kdhvgcmj5fc-guix-0.13.0-8.357ab93/libexec/guix/substitute
Downloading https://mirror.hydra.gnu.org/guix/nar/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz...
guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz' failed: 404, "Not Found"
@ substituter-failed /gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz 256 fetching path `/gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz' failed with exit code 1
process 8395 acquired build slot '/var/guix/offload/192.168.2.11/0'
process 8395 acquired build slot '/var/guix/offload/192.168.2.5/0'
load on machine '192.168.2.11' is 0.08 (normalized: 0.02)
@ build-started /gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv - x86_64-linux /var/log/guix/drvs/rq//gfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv.bz2
sending 0 store items to '192.168.2.11'...
offloading '/gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv' to '192.168.2.11'...
@ build-remote /gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv 192.168.2.11
@ substituter-started /gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz /gnu/store/19wpps1nmlg4j1530knl7kdhvgcmj5fc-guix-0.13.0-8.357ab93/libexec/guix/substitute
Downloading https://mirror.hydra.gnu.org/guix/nar/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz...
guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz' failed: 404, "Not Found"
@ substituter-failed /gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz 256 fetching path `/gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz' failed with exit code 1
derivation '/gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv' offloaded to '192.168.2.11' failed: some substitutes for the outputs of derivation `/gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source
@ build-failed /gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv - 1 builder for `/gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv' failed with exit code 100
cannot build derivation `/gnu/store/gna22xl7ycq4rzaj487axa5ijbyhqq1q-font-arabic-misc-1.0.3.drv': 1 dependencies couldn't be built
guix build: error: build failed: build of `/gnu/store/gna22xl7ycq4rzaj487axa5ijbyhqq1q-font-arabic-misc-1.0.3.drv' failed

Passing --no-build-hook makes it succeed:

Toggle snippet (12 lines)
$ ./pre-inst-env guix build --substitute-urls="https://mirror.hydra.gnu.org" --fallback --no-build-hook font-arabic-misc
@ substituter-started /gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz /gnu/store/19wpps1nmlg4j1530knl7kdhvgcmj5fc-guix-0.13.0-8.357ab93/libexec/guix/substitute
Downloading https://mirror.hydra.gnu.org/guix/nar/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz...
guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz' failed: 404, "Not Found"
@ substituter-failed /gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz 256 fetching path `/gnu/store/26nk7rgc2rhi7v0d8xhqqxglpg532syh-font-arabic-misc-1.0.3.tar.xz' failed with exit code 1
@ build-started /gnu/store/rqgfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv - x86_64-linux /var/log/guix/drvs/rq//gfr39aamfzqq93fl87ai2y61b5s992-font-arabic-misc-1.0.3.tar.xz.drv.bz2
font-arabic-misc-1.0.3/
font-arabic-misc-1.0.3/arabic24.bdf
font-arabic-misc-1.0.3/aclocal.m4
[...]

Interestingly no download was done on the second try, so apparently the
source was already in my store.

It looks like the offload hook starts before the actual download
(possibly because a substitute was advertised), and then fails when the
substitute 404s.
-----BEGIN PGP SIGNATURE-----

iQEzBAEBCgAdFiEEu7At3yzq9qgNHeZDoqBt8qM6VPoFAloCMoEACgkQoqBt8qM6
VPrgRggAztHhgGyH8Ll7+XnCd7gqWrwbfaN49DIxaWp2PQ6myevI05ggvRQVag7E
Tsl80O1oae/G/TT9PvV6u4AyZNq/bsLrCfroaAoJd5T9R1tnK5MnJNifkMtA0LAp
KFrJ3fy4NqUeK2wJVf/mV7TSWnB7l9hnbssnjtd7+cAQLar5pghwMwKzdS9vt5iy
LV4R8S1KEfCF5vQdpPQ1bxCLn4oev45+b+v0gbsh3iGtmac04se/K4BwdBTwj2Oj
6oQfDyAn6TwLISqxqYY9S+vKNTS1MueavoJ6pJo8ZKU7X+jINaJKursmIrkXU0nz
EmI4clWuuvQQHqm1I5CGKlzTK/FaGQ==
=cgml
-----END PGP SIGNATURE-----

L
L
Ludovic Courtès wrote on 8 Nov 2017 09:53
(name . Marius Bakke)(address . mbakke@fastmail.com)(address . 29200@debbugs.gnu.org)
87vailup6t.fsf@gnu.org
Marius Bakke <mbakke@fastmail.com> skribis:

Toggle quote (3 lines)
> I've noticed that when offloading, --fallback sometimes fails to
> actually fall back. Here is a shell transcript:

The problem is that guix-daemon does not pass “fallbackness” settings to
‘guix offload’ (you can check (guix scripts offload) to see what
settings are passed.)

We should adjust guix-daemon and (guix scripts offload) to pass this
extra setting, though there are probably other bits missing.

Thanks,
Ludo’.
L
L
Ludovic Courtès wrote on 12 Nov 2017 21:24
control message for bug #29200
(address . control@debbugs.gnu.org)
87y3nbckjf.fsf@gnu.org
merge 29200 24626
?