Re: [gentoo-dev] Re: eudev project announcement

[J. Roeleveld]

Stelian Ionescu <sionescu@××××.org> wrote:

>On Fri, 2012-12-21 at 12:48 +0100, J. Roeleveld wrote:
>> On Friday, December 21, 2012 12:42:23 PM Michał Górny wrote:
>> > On Fri, 21 Dec 2012 12:31:28 +0100
>> >
>> > "J. Roeleveld" <joost@××××××××.org> wrote:
>> > > On Friday, December 21, 2012 12:02:34 PM Michał Górny wrote:
>> > > > On Fri, 21 Dec 2012 11:24:45 +0100
>> > > >
>> > > > "J. Roeleveld" <joost@××××××××.org> wrote:
>> > > > > On Friday, December 21, 2012 09:57:25 AM Michał Górny wrote:
>> > > > > > Just let me know when you have to maintain a lot of such
>systemd
>> > > > > > and upgrade, say, glibc. Then maybe you'll understand.
>> > > > >
>> > > > > A shared /usr means I need to update ALL the systems at once.
>> > > > > When /usr is not shared, I can update groups at a time.
>> > > >
>> > > > Yes, and this is what disqualifies it for the general case. If
>you
>> > > > can't update one at some point, you can't update the others or
>it is
>> > > > going to likely get broken in a random manner.
>> > >
>> > > Yes, but do you want to find out when the entire production
>environment is
>> > > down? Or would you rather do the upgrades in steps and only risk
>having to
>> > > rebuild a few nodes and have a lower performance during that
>time?
>> > > There is a big difference between 50% performance and 0%.
>> >
>> > Didn't you just state that you *have* to update all at the same
>time?
>>
>> Please re-read what I wrote.
>> I said, with a *shared* /usr, then yes, I do need to update the
>entire
>> environment at the same time.
>
>That's not true.
>
>--
>Stelian Ionescu a.k.a. fe[nl]ix
>Quidquid latine dictum sit, altum videtur.
>http://common-lisp.net/project/iolib

How would you update a subset of servers when they all share the same /usr?

--
Joost
-- 
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