‘guix publish --cache’ can lose its daemon connection

DoneSubmitted by Ludovic Courtès.
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  • Ludovic Courtès
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Ludovic Courtès wrote on 4 Nov 2020 15:48
(address . bug-guix@gnu.org)
87lffh9nzf.fsf@inria.fr
With the introduction of “cache bypass” for ‘guix publish --cache’ incommit 2b2ab7796ac186d88060793b8873fc0e21462758, ‘guix publish’ cancrash like so:
Toggle snippet (55 lines)$ sudo guix publish -u ludo --cache=/tmp/cache --cache-bypass-threshold=30Mguix publish: publishing /gnu/store on 0.0.0.0, port 8080guix publish: using 'gzip' compression method, level 3 C-c C-z[1]+ Haltigita sudo guix publish -u ludo --cache=/tmp/cache --cache-bypass-threshold=30M$ bg[1]+ sudo guix publish -u ludo --cache=/tmp/cache --cache-bypass-threshold=30M &$ wget -O - http://localhost:8080/nar/gzip/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-foo--2020-11-04 15:42:50-- http://localhost:8080/nar/gzip/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-fooNi solvigas localhost (localhost)... 127.0.0.1Konektado al localhost (localhost)|127.0.0.1|:8080... konektita.HTTP peto sendita, ni atendas respondon... GET /nar/gzip/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-foo404 Not Found2020-11-04 15:42:50 ERARO 404: Not Found.
$ wget -O - http://localhost:8080/n8awazyldv9hbzb7pjcw76hiifmvrpvd.narinfo--2020-11-04 15:43:13-- http://localhost:8080/n8awazyldv9hbzb7pjcw76hiifmvrpvd.narinfoNi solvigas localhost (localhost)... 127.0.0.1Konektado al localhost (localhost)|127.0.0.1|:8080... konektita.HTTP peto sendita, ni atendas respondon... GET /n8awazyldv9hbzb7pjcw76hiifmvrpvd.narinfoIn guix/scripts/publish.scm: 455:4 5 (render-narinfo/cached #<store-connection 256.99 7f24e…> …) 460:12 4 (_ . _)In guix/store.scm: 1020:9 3 (_ #<store-connection 256.99 7f24eff0e320> "n8awazyldv9…") 916:4 2 (flush)In unknown file: 1 (put-bytevector #<input-output: socket 15> #vu8(29 0 …) …)In ice-9/boot-9.scm: 1669:16 0 (raise-exception _ #:continuable? _)In procedure fport_write: Rompita dukto500 Internal Server Error2020-11-04 15:43:13 ERARO 500: Internal Server Error.
$ wget -O - http://localhost:8080/n8awazyldv9hbzb7pjcw76hiifmvrpvd.narinfo--2020-11-04 15:43:15-- http://localhost:8080/n8awazyldv9hbzb7pjcw76hiifmvrpvd.narinfoNi solvigas localhost (localhost)... 127.0.0.1Konektado al localhost (localhost)|127.0.0.1|:8080... konektita.HTTP peto sendita, ni atendas respondon... GET /n8awazyldv9hbzb7pjcw76hiifmvrpvd.narinfoIn guix/scripts/publish.scm: 455:4 5 (render-narinfo/cached #<store-connection 256.99 7f24e…> …) 460:12 4 (_ . _)In guix/store.scm: 1020:9 3 (_ #<store-connection 256.99 7f24eff0e320> "n8awazyldv9…") 916:4 2 (flush)In unknown file: 1 (put-bytevector #<input-output: socket 15> #vu8(29 0 …) …)In ice-9/boot-9.scm: 1669:16 0 (raise-exception _ #:continuable? _)In procedure fport_write: Rompita dukto500 Internal Server Error2020-11-04 15:43:15 ERARO 500: Internal Server Error.

The first wget here, leads to this call in ‘render-nar/cached’:
(hash-part->path store "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee") ⇒ ""
and in turn to:
(bypass-cache? store "") (query-path-info store "")
at which point the daemon throws and closes the connection.
Further attempts to access the store all lead to EPIPE as shown above.At this point, ‘guix publish’ can only serve what’s already cached.
Ludo’.
L
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Ludovic Courtès wrote on 4 Nov 2020 16:06
Re: bug#44442: ‘guix publish --cach e’ can lose its daemon connection
(address . 44442@debbugs.gnu.org)
87h7q59n5l.fsf@gnu.org
Ludovic Courtès <ludo@gnu.org> skribis:
Toggle quote (4 lines)> With the introduction of “cache bypass” for ‘guix publish --cache’ in> commit 2b2ab7796ac186d88060793b8873fc0e21462758, ‘guix publish’ can> crash like so:
Fixed in 5e7cf66fb35780f930ad0bc5fe21ac330df4411d.
I’ll update the ‘guix’ package.
Ludo’.
L
L
Ludovic Courtès wrote on 4 Nov 2020 16:06
control message for bug #44442
(address . control@debbugs.gnu.org)
87ft5p9n5a.fsf@gnu.org
tags 44442 fixedclose 44442 quit
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