Gentoo Archives: gentoo-dev

From: Patrick Lauer <patrick@g.o>
To: gentoo-dev@l.g.o
Subject: [gentoo-dev] Breakage and frustration
Date: Sun, 13 Dec 2015 17:37:20
Message-Id: 566DACA9.2030302@gentoo.org
1 Broken breakage
2
3
4 tl;dr: Stuff is broken, and no one seems to care
5
6
7
8 In August the git "migration" happened, moving our main repository from
9 old stupid cvs to modern shiny git.
10
11 Well, migration is not the word I'd use, because this was an untested
12 forced migration that is now, months later, still suffering from
13 regressions and failures. But, hey, no more cvs! That's good because,
14 reasons.
15
16 So at first there was [1] the lack of proper Manifests. Which broke
17 things for all rsync users for a few hours.
18
19 Once that was 'fixed' there was the fun of [2], which made emerge --sync
20 very expensive because it refetched lots of files. Every time.
21
22 The 'fix' to the fix of the fix for that is still in progress ...
23
24
25 And a few little things like [3] happened. Oopsie.
26 Also there seems to be confusion how git works, leading to hilarity like
27 [4].
28
29 Now [5] was reported. Who needs ChangeLogs, this is git! Except for all
30 users, who don't get ChangeLogs. Well, let's add them and [6] not test
31 what happens. Guess what? Stuff breaks more.
32 And they are added backwards so that emerge --changelog fails in a
33 different way. No, I didn't want to read all changlog except the part I
34 cared about.
35
36 And fixing that introduces [7] some more regressions that broke updating
37 @system for about 3.5 days.
38
39 The fix to that fix (notice a pattern here?) broke rsync for *all* users
40 [8]. Almost as if no one ever tests things in a test environment ... but
41 hey, we're agile, let's fix stuff in production!
42
43 And the manifest issues are still [9] making life exciting.
44
45 So to summarize, in about 5 months there was user-visible breakage:
46
47 - ~1 day downtime for git migration (no updates)
48 - 8h no Manifests (no updates possible)
49 - a few days of emerge --sync being stupidly slow
50 - a few days of emerge-webrsync not updating
51 - about 3 months of emerge --changelog being broken, just to be broken
52 in a different way
53 - 3.5 days of emerge @system being broken
54 - about a day of emerge --sync needing manual interaction to be able to
55 update again
56 - a few days of grub being uninstallable (iow, making installing
57 impossible for many users)
58
59 So all in all emerge --sync && emerge -uND @system being down for >10%
60 of the time.
61
62 Now, I don't know if you use Gentoo, but I do, and I use it at work, so
63 having this level of randomization happen is not really useful.
64
65 Tell me then, please - what can I/we do so that this kind of breakage
66 stops, and we can actually aim at having a most excellent distro? In the
67 long run I am considering just creating my own clone of all
68 infrastructure bits so I can fix things, but it's an option that is
69 needlessly braindead, wasting effort, and not really useful to users
70 that are not me.
71
72
73 [1] https://bugs.gentoo.org/show_bug.cgi?id=557184
74 [2] https://bugs.gentoo.org/show_bug.cgi?id=557192
75 [3] https://bugs.gentoo.org/show_bug.cgi?id=557344
76 [4] https://bugs.gentoo.org/show_bug.cgi?id=557400
77 [5] https://bugs.gentoo.org/show_bug.cgi?id=557826
78 [6] https://bugs.gentoo.org/show_bug.cgi?id=565574
79 [7] https://bugs.gentoo.org/show_bug.cgi?id=565694
80 [8] https://bugs.gentoo.org/show_bug.cgi?id=567074
81 [9] https://bugs.gentoo.org/show_bug.cgi?id=567830

Replies

Subject Author
Re: [gentoo-dev] Breakage and frustration Sergei Trofimovich <slyfox@g.o>
Re: [gentoo-dev] Breakage and frustration "Robin H. Johnson" <robbat2@g.o>
Re: [gentoo-dev] Breakage and frustration Rich Freeman <rich0@g.o>