GNU bug report logs - #75679
Frequent TLS error in `guix substitute'

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Message #12 received at 75679 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: "Timo Wilken" <guix <at> twilken.net>
Cc: 75679 <at> debbugs.gnu.org, 76486 <at> debbugs.gnu.org,
 Christopher Baines <guix <at> cbaines.net>
Subject: Re: bug#76486: `guix substitute' occasionally crashes while looking
 for substitutes
Date: Tue, 25 Feb 2025 17:04:59 +0100

Hi,

"Timo Wilken" <guix <at> twilken.net> skribis:

> Sometimes, apparently randomly, `guix substitute' crashes as follows for me:
>
> substitute: looking for substitutes on 'https://bordeaux.guix.gnu.org'...   0.0%guix substitute: error: TLS error in procedure 'write_to_session_record_port': Error in the push function.
> guix system: error: `/gnu/store/jpbjljfva1hqspw1kd6hgnl63sgvw966-guix-1.4.0-32.5f6fdad/bin/guix substitute' died unexpectedly

I’ve sent patch fixing the client-side issue:

  https://issues.guix.gnu.org/76558

Now, I think this only happens with bordeaux.guix.gnu.org, and started
to happen more frequently lately.

Substitutes there are served by nar-herder so I wonder what’s special
about it compared to ‘guix publish’ (used on ci.guix).

Looking at the logs, the nar-herder doesn’t crash (i.e., shepherd never
has to respawn it).  The only thing I see in its own log file that might
be suspicious is this:

--8<---------------cut here---------------start------------->8---
2025-02-23 21:33:00 error: #<procedure 7fba1010cc60 at nar-herder/storage.scm:433:13 ()>:
2025-02-23 21:33:00   #<&port-read-timeout thunk: #<procedure 7fba1010cc80 at nar-herder/storage.scm:431:10 ()> port: #<closed: file 7fb9512eb700>>,
2025-02-23 21:33:00   attempt 1 of 3, retrying in 5
2025-02-23 21:33:01 2025-02-23 21:33:01 (INFO ): processing 1 recent changes
2025-02-23 21:33:11 2025-02-23 21:33:11 (INFO ): processing 1 recent changes
2025-02-23 21:33:21 2025-02-23 21:33:21 (INFO ): processing 1 recent changes
2025-02-23 21:33:31 2025-02-23 21:33:31 (INFO ): processing 1 recent changes
2025-02-23 21:33:35 error: #<procedure 7fba1010cc60 at nar-herder/storage.scm:433:13 ()>:
2025-02-23 21:33:35   #<&port-read-timeout thunk: #<procedure 7fba1010cc80 at nar-herder/storage.scm:431:10 ()> port: #<closed: file 7fb946607070>>,
2025-02-23 21:33:35   attempt 2 of 3, last retry in 5
2025-02-23 21:33:40 running last retry of #<procedure 7fba1010cc60 at nar-herder/storage.scm:433:13 ()> after 2 failed attempts
2025-02-23 21:33:51 2025-02-23 21:33:51 (INFO ): processing 1 recent changes
2025-02-23 21:33:58 error: #<procedure 7fb95e06b640 at nar-herder/storage.scm:433:13 ()>:
2025-02-23 21:33:58   #<&compound-exception components: (#<&error> #<&irritants irritants: (read-header-line #<eof>)> #<&exception-with-kind-and-args kind: bad-header args: (read-header-line #<eof>)>)>,
2025-02-23 21:33:58   attempt 1 of 3, retrying in 5
--8<---------------cut here---------------end--------------->8---

WDYT, Chris?

Thanks,
Ludo’.

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