From: ludo@gnu.org (Ludovic Courtès)
To: guix-devel <guix-devel@gnu.org>
Subject: Cuirass news
Date: Wed, 24 Jan 2018 23:12:08 +0100 [thread overview]
Message-ID: <877es6x5xj.fsf@gnu.org> (raw)
Hello Guix!
Over the last few days, out of frustration ;-), I hacked Cuirass to
improve several things:
• Logging is improved: useful events are logged, including build
started/succeeded/failed (using a variant of what I proposed in the
Guix ‘wip-ui’ branch). This makes it much easier to understand
what’s going on!
• Concurrency: the evaluate/build cycle would previously happen
sequentially. This was bad for latency (it could take a while
before we would pull from the repo) and for resource usage (while
evaluating all the build machines would be idle). Now there’s some
concurrency, with a switch to Fibers (yay!), which means that these
activities can be interleaved, as well as HTTP request processing.
• Build status: the starttime/stoptime of a ‘Build’ entry in the
database is now accurate since we set them once the build has
actually started/stopped. This means the database is updated as
soon as a build finishes, rather than when the whole
‘build-derivations’ RPC has returned. We can also distinguish
between started and scheduled builds now.
• HTTP API: as a corollary, /api/latestbuilds now really returns the
latest builds. There’s a new /api/queue that returns pending
builds—builds that have a database entry with ‘status’ < 0.
• Restarting unfinished builds: it’s common, especially when testing,
to interrupt Cuirass, leaving a number of builds unfinished or not
even started. Now Cuirass restarts those upon startup.
And! This brings a whole set of new bugs that I’m hunting notably on
berlin (which may thus lag behind…). Overall I think it’ll make Cuirass
easier to work with and more “introspectable”.
Feedback welcome!
Ludo’.
next reply other threads:[~2018-01-24 22:12 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-24 22:12 Ludovic Courtès [this message]
2018-01-25 10:55 ` Cuirass news Mathieu Othacehe
2018-01-25 10:59 ` Mathieu Othacehe
2018-01-25 13:09 ` Ludovic Courtès
2018-01-26 14:30 ` Danny Milosavljevic
2018-01-27 16:01 ` Ludovic Courtès
2018-01-27 17:18 ` Danny Milosavljevic
2018-01-27 19:12 ` Danny Milosavljevic
2018-01-28 21:47 ` Ludovic Courtès
2018-01-28 22:23 ` Danny Milosavljevic
2018-01-29 9:57 ` Andy Wingo
2018-02-08 13:37 ` Ludovic Courtès
2018-02-08 16:29 ` Danny Milosavljevic
2018-02-08 22:21 ` Ludovic Courtès
2018-02-08 23:05 ` Danny Milosavljevic
2018-02-09 6:17 ` Gábor Boskovits
2018-02-09 9:41 ` Ludovic Courtès
2018-02-09 11:29 ` Danny Milosavljevic
2018-02-09 16:53 ` Ludovic Courtès
2018-02-09 17:06 ` Danny Milosavljevic
2018-02-10 11:18 ` Ludovic Courtès
2018-02-13 9:12 ` Danny Milosavljevic
2018-02-14 13:43 ` Ludovic Courtès
2018-02-14 23:17 ` Ludovic Courtès
2018-02-19 15:35 ` Danny Milosavljevic
2018-02-19 15:35 ` [PATCH] database: Simplify 'db-get-builds' Danny Milosavljevic
2018-02-19 17:52 ` [PATCH] database: db-get-builds: Inline output selection Danny Milosavljevic
2018-02-19 22:08 ` Cuirass news Danny Milosavljevic
2018-03-02 13:21 ` Ludovic Courtès
2018-03-02 22:06 ` Ludovic Courtès
2018-03-02 23:29 ` Danny Milosavljevic
2018-02-14 23:21 ` Ludovic Courtès
2018-01-25 21:06 ` Ricardo Wurmus
2018-01-26 11:12 ` Ludovic Courtès
2018-01-25 22:28 ` Danny Milosavljevic
2018-01-26 10:47 ` Ludovic Courtès
2018-01-28 12:33 ` Cuirass frontend Danny Milosavljevic
2018-01-29 17:42 ` Ludovic Courtès
2018-01-26 0:46 ` Cuirass news Danny Milosavljevic
2018-01-27 17:27 ` Danny Milosavljevic
2018-01-28 21:48 ` Ludovic Courtès
2018-01-26 17:55 ` Jan Nieuwenhuizen
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