On Tue, 10 Aug 2010, Richard Troth wrote:
Russ ---
YOU ... are ... SPOOKY
How can you remember a date so accurately.
'sent mail' archives and grep, on the confirmation on that
lunch -- at Damon's of the Olentangy River Road, with the
midrange global Linux architect for another firm here in town
;)
It was Steve who suggested making the root RO and shared. I had only
been pushing for shared /usr and things. Sun used to share /usr
heavily, as I have said many times, so there is precedent in the
non-VM and non-z world, so it should not be a weird idea to other
Linux developers, distributors, and customers. But Steve took it up a
notch and I am hooked.
It is a compelling idea, at the expense of some re-jiggering
of the initrd, and mounts. The 'deduplication' gain is
compelling, and I have repeated the idea on VM work we have
done since
RPM is (still) the biggest part of the problem. Not RPM per se, but
the practices surrounding RPM based packaging. (Same goes for
Debian.)
For those late to the party, I served as the Editor of the RPM
website for many years, and talk daily with the long-time RPM
maintainer, Jeff Johnson, who now does consulting work in
packaging space (as I do) All the issues of the RO compoennt
are long since known and solved, and really the issue is that
a distribution packaging strategy designed to meet the needs
of 'onsies and twosies' installs, is not well suited for
hundreds or thousands of replications.
A entity with enough mass to be running more than a couple
hundreds instances needs to have packaging skills (in house,
or contracted as needed), and basically ends up spinning a
'local rework' of some vendors base [commercially: RH's or
SuSE's; community: CentOS, Debian testing, are the best
suited], re-jiggered to meet local needs. It is the only
sensible to out-compete one's peers in this space
-- Russ herrold
[email protected]
[email protected]
[email protected]
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