Subject: bug#56319: 'guix system' failure due to substitute being temporarily 404 -> Implement a retry attempts?

From: Maxime Devos <[email-masked]>
Date: Fri, 1 Jul 2022 14:22:29 +0000

merge 56005 56320 56319
thanks

This doesn't look Guix System-specific to me and looks to have the same issue (i.e., something about write_wait_fd) as
<https://issues.guix.gnu.org/56005>, so merging into 56005.

Also, is the substitute server being down a hypothesis for the error but not actually known to actually have hapend, or something you have noticed the substitute server being down via other methods and believe it to be a plausible hypothesis for the error cause?

In all cases, I believe write_wait_fd: unimplemented to be a bug that needs to be investigated for the root cause and fixed, not something to accumulate work-arounds for and ignore by automatic retries.

Greetings,
Maxime.