Re: [Xen-users] virsh -c xen:/// list: = Connection refused

[Gerry Reno <greno@xxxxxxxxxxx>]

Gerry Reno wrote:
> Boris Derzhavets wrote:
> > > My base distro on this machine is Ubuntu 9.10 Server.  And I did 
> > pretty
> > > much the same thing for it as you did for F12.  I built debs for Xen
> > > 3.4.1 and installed them, custom built the JF pv_ops dom0 kernel and
> > > installed it.  Libvirt was already installed at version 0.7.0 so I
> > > didn't touch it.  libvirt had worked fine for a few test KVM 
> > guests. > But now I want the whole machine dedicated to Xen guests 
> > but I'd still
> > > like to use libvirt to manage the guests.  So how do I get 'virsh' to
> > > default to the xen:/// hypervisor and also how do I get it to 
> > connect to
> > > it?  There's nothing running on port 8000.  So this is a mystery.
> >
> > No mystery. Libvirt Xen driver was broken already on Ubuntu 8.04 ( 
> > Hardy Heron) Server
> > and never fixed afterwards.
> >
> > Boris.
> > P.S. View Ubuntu's Launchpad
> I checked the ubuntu launchpad but it only lists 6 bugs for 'libvirt 
> xen' search:
> https://bugs.launchpad.net/ubuntu/+bugs?field.searchtext=libvirt+xen&orderby=-importance&search=Search&field.status%3Alist=NEW&field.status%3Alist=INCOMPLETE_WITH_RESPONSE&field.status%3Alist=INCOMPLETE_WITHOUT_RESPONSE&field.status%3Alist=CONFIRMED&field.status%3Alist=TRIAGED&field.status%3Alist=INPROGRESS&field.status%3Alist=FIXCOMMITTED&field.assignee=&field.bug_reporter=&field.omit_dupes=on&field.has_patch=&field.has_no_package= 
>
> I didn't see any mention of this specific connection error.  Is there 
> another bug somewhere about this problem?
> -Gerry
Ok, found a couple things.  xend-http-server was not enabled in 
/etc/xen/xend-config.sxp.
So then I try to restart xend and found that no matter what I try to do 
with xend it just hangs the terminal; start, status, reload all hang.  
So this I don't understand.
# ps -ef | grep -i xen
root        23     2  0 16:38 ?        00:00:00 [xenwatch]
root        24     2  0 16:38 ?        00:00:00 [xenbus]
root      1901     1  0 16:38 ?        00:00:00 xenstored --pid-file 
/var/run/xenstore.pid
root      1905     1  0 16:38 ?        00:00:00 /usr/bin/python2.6 
/usr/sbin/xend start
root      1908     1  0 16:38 ?        00:00:00 xenconsoled
root      1910  1905  0 16:38 ?        00:00:01 /usr/bin/python2.6 
/usr/sbin/xend start
It looks like it's running though but you cannot control it with the 
init.d script.
What I did find is that after enabling the xend-http-server and then 
rebooting the host that I could connect to the xen hypervisor:
root@grp-01-23-02:~# virsh -c xen:/// list
Connecting to uri: xen:///
Id Name                 State
----------------------------------
 0 Domain-0             running

root@grp-01-23-02:~# virsh list
Connecting to uri: qemu:///system
Id Name                 State
----------------------------------

qemu/kvm is still the default hypervisor.

So now one last thing I need: how to set xen as the default hypervisor 
for libvirt.
-Gerry



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