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From Tim Mackey <tmac...@gmail.com>
Subject Re: Xen Project support and state of APIs
Date Tue, 17 Jun 2014 17:39:48 GMT
On Tue, Jun 17, 2014 at 7:30 AM, Rohit Yadav <bhaisaab@apache.org> wrote:

> Tim,
>
> Thanks for replying, let me clean up everything and re-setup my test infra
> after my $dayjob hours and get back to you. The test cases in the design
> doc does not discuss Xen Project so I thought I should ask if ACS works
> with Xen Project 4.x.
>

The longer term objective is to provide support for XenProject without
XAPI, most notably with libvirt.  Effectively XenServer implies XAPI and
XenProject would imply libvirt as the tooling.


>
> The Xen/XenProject/XenServer/XAPI/XCP is confusing [1]. From what I
> understand, XCP was some sort of an opensource version of XenServer, but
> since XenServer distribution (which consists of Xen, XenCenter, XAPI, Linux
> etc.) is opensource, XCP has been discontinued since 1.6 release?
>

XCP was rolled into XenServer as of XenServer 6.2 which means 1.6 was the
last version of XCP.  I tried to sum it up in this blog:
http://open.citrix.com/blog/342-knowing-what-you-ve-got-avoiding-the-xen-vs-xenserver-confusion.html


>
> Now, on many Linux distro XAPI is still available as 'xcp-xapi' such as in
> Debian/Ubuntu, so what package(s) do you suggest one needs to install and
> configure so I can get DevCloud [2] work again? DevCloud is a VM that runs
> Xen (Xen Project) inside it and can be used as a virtual host to
> test/develop ACS against it.
>
>
I see no reason why any other XAPI implementation wouldn't work, but it's
entirely possible the version of xcp-xapi you have has issues with
XenProject 4.4 due to normal versioning type issues.  There also was a
different "productization" attempt called xenserver-core, but that looks to
have died on the vine.  That being said, I could easily have broken
something.  If I've broken something, I probably won't be able to test
until next week due to travels.  The question of xapi inclusion in distros
is one I'd need to check on.



> [1] http://www.xenproject.org/developers/teams/xapi.html
> [2] http://bhaisaab.org/logs/devcloud
>
> Regards.
>
>
>
>
> On Tue, Jun 17, 2014 at 4:27 PM, Tim Mackey <tmackey@gmail.com> wrote:
>
> > Rohit,
> >
> > We've only supported xapi so far, so I'm curious if you had Xen Project
> 4.4
> > working before with xapi and if that is now broken. Nothing I did should
> > have impacted that, but it wasn't in my test suite so anything is
> possible
> > On Jun 17, 2014 11:21 AM, "Rohit Yadav" <bhaisaab@apache.org> wrote:
> >
> > > Hi,
> > >
> > > Xen Project (previously xen.org xenserver) is widely accessible in
> > several
> > > Linux distributions such as Arch, Fedora etc. Therefore, people may
> want
> > to
> > > use it instead of XenServer (6.2 or later). The ACS 4.5 design doc [1]
> > > explains about XenServer and how it should be tested etc. but what
> about
> > > using Xen Project?
> > >
> > > Since the recent Xen plugin refactoring as xenserver plugin [1], I'm
> > unable
> > > to get ACS to work with Xen Project 4.4 (on a real host and on a new
> > custom
> > > DevCloud). Using the XenServer ACS plugin, it identifies a Xen Project
> > host
> > > as some version of Xen but then fails. Has anyone tried this with ACS
> > > 4.4/master? Are we going to test/support Xen Project (4.x) soon? If so,
> > can
> > > people involved share their plan/vision/roadmap on it?
> > >
> > > Lastly, as the design doc [1] suggested XCP's development has stopped,
> > are
> > > we going to favour using XAPI [1] now or libVirt [2] or something else?
> > >
> > > [1]
> > >
> > >
> >
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/Convert+Xen+usage+to+XenServer
> > >
> > > [2] http://blog.xen.org/index.php/2014/03/10/xen-4-4-released
> > >
> > > Regards.
> > >
> >
>

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