From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: 30290@debbugs.gnu.org
Subject: bug#30290: guix-daemon slows to a crawl when a substitute server is offline
Date: Mon, 29 Jan 2018 22:07:49 -0500 [thread overview]
Message-ID: <87fu6o2ge2.fsf@gmail.com> (raw)
When a substitute server used by guix-daemon is offline, the daemon will
keep attempting to connect to it, even when it shouldn't need any data
(ran 'sudo guix system reconfigure my-config.scm' multiple times in a
row.
With the disconnected server (bayfront in my case), that command would
take close to 8 minutes, with many system calls like:
--8<---------------cut here---------------start------------->8---
connect(14, {sa_family=AF_INET, sin_port=htons(443), sin_addr=inet_addr("141.255.128.56")}, 16) = -1 EINPROGRESS
--8<---------------cut here---------------end--------------->8---
which wasted 5 seconds each time.
After removing this server from my substitute servers list, the same
operation (system reconfigure) is 8 times faster (1 minute).
Suggestion: the daemon should stop trying to use the offline substitute
server after trying for X times, and print a warning about it.
Maxim
next reply other threads:[~2018-01-30 3:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-30 3:07 Maxim Cournoyer [this message]
2020-12-03 0:20 ` bug#30290: guix-daemon slows to a crawl when a substitute server is offline zimoun
2020-12-19 3:04 ` Maxim Cournoyer
2020-12-22 15:16 ` Ludovic Courtès
2020-12-28 12:19 ` Efraim Flashner
2021-03-24 21:55 ` zimoun
2021-06-09 21:34 ` zimoun
2021-07-13 8:49 ` zimoun
2021-08-18 11:19 ` zimoun
2021-08-18 13:18 ` Maxim Cournoyer
2021-08-19 1:54 ` Maxim Cournoyer
2021-08-19 2:25 ` Maxim Cournoyer
2022-03-23 10:50 ` zimoun
2022-10-08 14:57 ` zimoun
2022-10-10 3:03 ` Maxim Cournoyer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://guix.gnu.org/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87fu6o2ge2.fsf@gmail.com \
--to=maxim.cournoyer@gmail.com \
--cc=30290@debbugs.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/guix.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).