From: Alan McKinnon <alan.mckinnon@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] systemd
Date: Tue, 23 Aug 2011 23:22:18 +0200 [thread overview]
Message-ID: <1858702.FQp2FrNb1o@nazgul> (raw)
In-Reply-To: <4E541761.4050907@badapple.net>
On Tue 23 August 2011 14:10:57 kashani did opine thusly:
> On 8/23/2011 1:43 PM, Alan McKinnon wrote:
> > I can't fix it without running afoul of the Change Management
> > process, and today's emergency reboot didn't leave me any time
> > to poke around and determine the effect of removing hal.
> >
> > This is how life in corporate IT works....
>
> I hate Corp CM and it's one of the reasons I stay in startups.
It's
> job is to slow normal change down so much so that every change
> becomes an emergency.
>
> However next time I have to deal with one I am shoving
mathematical
> proof of "there is no rollback in systems" down there throats.
> http://www.iu.hio.no/~mark/papers/totalfield.pdf
Haven't read the pdf yet, but I just have to share this joke.
Tonight's CM was an unscheduled emergency reboot. This gave me
opportunity to do something I've been dying to do for ages, enter
this:
Install plan: reboot server
Test plan: ping server
Backout plan: unreboot server <====== :-)
On the whole our CM process is sane. The manager knows how
infrastructure works:
If that undersea optical link goes down, I'm fixing it right now and
to hell with the paperwork and process.
Contrast with my gf's job at the bank. That one truly is a case where
to change anything, she has to invent imaginary catastrophic
emergencies. More often than not, she causes them in undetectable ways
just to get her job done.
>
> For those that aren't ginormous systems nerds this bit sums it up
> nicely.
>
> "There is a deeper issue with roll-back in partial systems. If a
> system is in contact with another system, e.g. receiving data, or
> if we have partitioned a system into loosely coupled pieces only
> one of which is being changed, then the other system becomes a part
> of the total system and we must write a hypothetical journal for
> the entire system in order to achieve a consistent rollback."
>
> kashani
--
alan dot mckinnon at gmail dot com
next prev parent reply other threads:[~2011-08-23 21:23 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-17 21:04 [gentoo-user] systemd Stefan G. Weichinger
2011-08-17 22:54 ` Sebastian Beßler
2011-08-20 20:22 ` Stefan G. Weichinger
2011-08-20 20:54 ` Sebastian Beßler
2011-08-21 17:07 ` Stefan G. Weichinger
2011-08-22 8:26 ` Stefan G. Weichinger
2011-08-22 9:54 ` Stefan G. Weichinger
2011-08-22 10:26 ` Joost Roeleveld
2011-08-22 10:31 ` Stefan G. Weichinger
2011-08-22 11:42 ` Joost Roeleveld
2011-08-22 16:55 ` Stefan G. Weichinger
2011-08-22 17:03 ` Joost Roeleveld
2011-08-22 18:24 ` Stefan G. Weichinger
2011-08-22 18:29 ` Stefan G. Weichinger
2011-08-22 21:09 ` Stefan G. Weichinger
2011-08-23 6:27 ` Joost Roeleveld
2011-08-23 8:30 ` Stefan G. Weichinger
2011-08-23 9:04 ` Joost Roeleveld
2011-08-23 9:17 ` Stefan G. Weichinger
2011-08-23 9:22 ` Stefan G. Weichinger
2011-08-23 22:00 ` Stefan G. Weichinger
2011-08-24 7:03 ` Joost Roeleveld
2011-08-23 6:27 ` Joost Roeleveld
2011-08-23 17:17 ` Stroller
2011-08-23 17:49 ` Canek Peláez Valdés
2011-08-23 18:57 ` Alan McKinnon
2011-08-23 19:06 ` Canek Peláez Valdés
2011-08-23 19:43 ` Alan McKinnon
2011-08-23 19:50 ` Canek Peláez Valdés
2011-08-23 20:19 ` Alan McKinnon
2011-08-23 20:32 ` Canek Peláez Valdés
2011-08-24 21:19 ` [gentoo-user] systemd walt
2011-08-24 21:28 ` Alan McKinnon
2011-08-23 20:16 ` [gentoo-user] systemd Sebastian Beßler
2011-08-23 20:43 ` Alan McKinnon
2011-08-23 21:10 ` kashani
2011-08-23 21:22 ` Alan McKinnon [this message]
2011-08-24 4:15 ` Dale
2011-08-24 7:10 ` Joost Roeleveld
2011-08-30 11:56 ` Alex Schuster
2011-08-30 12:13 ` Michael Schreckenbauer
2011-08-30 15:11 ` Canek Peláez Valdés
2011-08-30 23:01 ` Alex Schuster
2011-08-30 23:18 ` Michael Mol
2011-09-01 21:48 ` Alan McKinnon
2011-09-01 22:32 ` Canek Peláez Valdés
2011-09-01 23:27 ` Alan McKinnon
2011-09-02 7:33 ` Mick
2011-09-02 15:28 ` Alan McKinnon
2011-09-03 0:05 ` Neil Bothwick
2011-09-03 7:56 ` Mick
2011-09-03 8:38 ` Neil Bothwick
2011-09-03 9:52 ` Alan McKinnon
2011-09-03 9:40 ` Alan McKinnon
2011-09-03 10:07 ` Neil Bothwick
2011-09-03 13:09 ` Peter Humphrey
2011-09-03 13:21 ` Alan McKinnon
2011-09-03 23:52 ` Peter Humphrey
2011-09-04 0:19 ` Alan McKinnon
2011-09-04 0:44 ` Peter Humphrey
2011-09-04 9:33 ` Peter Humphrey
2011-08-31 13:13 ` [gentoo-user] systemd walt
2011-10-11 20:27 ` [gentoo-user] systemd Stefan G. Weichinger
2011-10-11 21:04 ` Canek Peláez Valdés
2011-10-11 21:33 ` Stefan G. Weichinger
2011-10-11 22:23 ` Canek Peláez Valdés
2011-10-11 22:39 ` Stefan G. Weichinger
2011-10-11 22:47 ` Canek Peláez Valdés
2011-10-11 22:49 ` Stefan G. Weichinger
-- strict thread matches above, loose matches on Subject: below --
2017-11-04 16:15 [gentoo-user] Systemd siefke_listen
2017-11-04 16:58 ` Neil Bothwick
2017-11-04 20:30 ` siefke_listen
2011-08-16 0:28 [gentoo-user] OT: but cool - NASDAQ is gentoo powered Adam Carter
2011-08-16 1:48 ` Michael Mol
2011-08-16 17:06 ` Canek Peláez Valdés
2011-08-16 20:58 ` Stefan G. Weichinger
2011-08-16 21:06 ` Paul Hartman
2011-08-16 23:24 ` Canek Peláez Valdés
2011-08-17 14:04 ` Stefan G. Weichinger
2011-08-17 14:47 ` [gentoo-user] systemd (was: NASDAQ is gentoo powered) Stefan G. Weichinger
2011-08-17 15:00 ` [gentoo-user] systemd Stefan G. Weichinger
2011-08-17 16:00 ` Stefan G. Weichinger
2011-08-17 18:48 ` Stefan G. Weichinger
2011-08-17 19:20 ` Stefan G. Weichinger
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1858702.FQp2FrNb1o@nazgul \
--to=alan.mckinnon@gmail.com \
--cc=gentoo-user@lists.gentoo.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.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox