On 11/12/2014 10:47 PM, Victor Lowther wrote:
Hmmm... with this thread in mind, anyone think that changing DISCOVERING
to INTROSPECTING in the new state machine spec is a good idea?
As before I'm uncertain. Discovery is a troublesome term, but too many
people use and recognize it, while IMO introspecting is much less
common. So count me as -0 on this.
On Mon, Nov 3, 2014 at 4:29 AM, Ganapathy, Sandhya
<sandhya.ganapa...@hp.com <mailto:sandhya.ganapa...@hp.com>> wrote:
Hi all,
Following the mail thread on disambiguating the term 'discovery' -
In the lines of what Devananda had stated, Hardware Introspection
also means retrieving and storing hardware details of the node whose
credentials and IP Address are known to the system. (Correct me if I
am wrong).
I am currently in the process of extracting hardware details (cpu,
memory etc..) of n no. of nodes belonging to a Chassis whose
credentials are already known to ironic. Does this process fall in
the category of hardware introspection?
Thanks,
Sandhya.
-----Original Message-----
From: Devananda van der Veen [mailto:devananda....@gmail.com
<mailto:devananda....@gmail.com>]
Sent: Tuesday, October 21, 2014 5:41 AM
To: OpenStack Development Mailing List
Subject: [openstack-dev] [Ironic] disambiguating the term "discovery"
Hi all,
I was reminded in the Ironic meeting today that the words "hardware
discovery" are overloaded and used in different ways by different
people. Since this is something we are going to talk about at the
summit (again), I'd like to start the discussion by building
consensus in the language that we're going to use.
So, I'm starting this thread to explain how I use those two words,
and some other words that I use to mean something else which is what
some people mean when they use those words. I'm not saying my words
are the right words -- they're just the words that make sense to my
brain right now. If someone else has better words, and those words
also make sense (or make more sense) then I'm happy to use those
instead.
So, here are rough definitions for the terms I've been using for the
last six months to disambiguate this:
"hardware discovery"
The process or act of identifying hitherto unknown hardware, which
is addressable by the management system, in order to later make it
available for provisioning and management.
"hardware introspection"
The process or act of gathering information about the properties or
capabilities of hardware already known by the management system.
Why is this disambiguation important? At the last midcycle, we
agreed that "hardware discovery" is out of scope for Ironic --
finding new, unmanaged nodes and enrolling them with Ironic is best
left to other services or processes, at least for the forseeable future.
However, "introspection" is definitely within scope for Ironic. Even
though we couldn't agree on the details during Juno, we are going to
revisit this at the Kilo summit. This is an important feature for
many of our current users, and multiple proof of concept
implementations of this have been done by different parties over the
last year.
It may be entirely possible that no one else in our developer
community is using the term "introspection" in the way that I've
defined it above -- if so, that's fine, I can stop calling that
"introspection", but I don't know a better word for the thing that
is find-unknown-hardware.
Suggestions welcome,
Devananda
P.S.
For what it's worth, googling for "hardware discovery" yields
several results related to identifying unknown network-connected
devices and adding them to inventory systems, which is the way that
I'm using the term right now, so I don't feel completely off in
continuing to say "discovery" when I mean "find unknown network
devices and add them to Ironic".
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