11:10 a.m.
Hi,
i tried to use virt-viewer to connect to a remote machine
running libvirt & kvm-qemu at FC9 - but it failed.
So, I run virsh without the URL directly on FC9, it works (e.g. virsh
list).
If I use a connection URL, it failed.
Did I miss something ?
regards
Danny
[root@xxx03 ~]# virsh list
Id Name State
----------------------------------
oot@xxx03 ~]# virsh -c qemu+tls://localhost list
libvir: Remote error : Certificate's owner does not match the hostname
(localhost)
libvir: Remote error : unable to connect to 'localhost': Invalid
argument
error: failed to connect to the hypervisor
[root@xxx03 ~]# virsh -c qemu+tls://xxx03.domainname.com list
libvir: error : could not connect to qemu://
error: failed to connect to the hypervisor
*** Port is available:
[root@ xxx03 ~]# netstat -nl | grep 16514
tcp 0 0 0.0.0.0:16514 0.0.0.0:*
LISTEN
*** Also, a ssh does not work:
[root@xxx03 ~]# virsh -c qemu+ssh://xxx03.domainname.com list
root(a)xxx03.domainname.com password:
libvir: error : could not connect to qemu://
error: failed to connect to the hypervisor
** Connecting directly works:
[root@ xxx03 ~]# virsh -c qemu:///system list
Id Name State
----------------------------------
** but not with the remote name like
[root@ xxx03 ~]# virsh -c qemu://xxx03.domainname.com /system list
libvir: error : could not connect to qemu://xxx03.domainname.com /system
error: failed to connect to the hypervisor
1:48 p.m.
New subject: [libvirt] RE: Probs connecting QEMU hypervisor with URL ?
One more - i tried do debug this problem
with the debug-enviroment variable - it seems like
libvirt can't connect the qemu hypervisor ...
Hmm, in xen-enviroment, there's a xend daemon running - but
in qemu-enviroment ? There's no separate daemon "qemud" or similar
running ... so, again's which or what will libvirt try to connect to ?
Maybe a remote access to from libirt to qemu CAN NOT work ?
maybe this would be a additional info for libvirt-docu ?
regards
Danny
[root@xen03 ~]# LIBVIRT_DEBUG=SPAM virsh -c
qemu+tls://xxx03.domainname.com
DEBUG: libvirt.c: virInitialize (register drivers)
DEBUG: libvirt.c: virRegisterDriver (registering Test as driver 0)
DEBUG: libvirt.c: virRegisterNetworkDriver (registering Test as network
driver 0)
DEBUG: libvirt.c: virRegisterStorageDriver (registering Test as storage
driver 0)
DEBUG: libvirt.c: virRegisterDriver (registering Xen as driver 1)
DEBUG: libvirt.c: virRegisterDriver (registering OPENVZ as driver 2)
DEBUG: libvirt.c: virRegisterDriver (registering remote as driver 3)
DEBUG: libvirt.c: virRegisterNetworkDriver (registering remote as
network driver 1)
DEBUG: libvirt.c: virRegisterStorageDriver (registering remote as
storage driver 1)
DEBUG: libvirt.c: virRegisterDeviceMonitor (registering remote as device
driver 0)
DEBUG: libvirt.c: virConnectOpenAuth
(name=qemu+tls://xxx03.domainname.com, auth=0x35ce2930a0, flags=0)
DEBUG: libvirt.c: do_open (name "qemu+tls://xxx03.domainname.com" to URI
components:
scheme qemu+tls
opaque (null)
authority (null)
server xxx03.domainname.com
user (null)
port 0
path
)
DEBUG: libvirt.c: do_open (trying driver 0 (Test) ...)
DEBUG: libvirt.c: do_open (driver 0 Test returned DECLINED)
DEBUG: libvirt.c: do_open (trying driver 1 (Xen) ...)
DEBUG: libvirt.c: do_open (driver 1 Xen returned DECLINED)
DEBUG: libvirt.c: do_open (trying driver 2 (OPENVZ) ...)
DEBUG: libvirt.c: do_open (driver 2 OPENVZ returned DECLINED)
DEBUG: libvirt.c: do_open (trying driver 3 (remote) ...)
DEBUG: remote_internal.c: doRemoteOpen (proceeding with name = qemu://)
DEBUG: remote_internal.c: initialise_gnutls (loading CA file
/etc/pki/CA/cacert.pem)
DEBUG: remote_internal.c: initialise_gnutls (loading client cert and key
from files /etc/pki/libvirt/clientcert.pem and
/etc/pki/libvirt/private/clientkey.pem)
libvir: Fehler : could not connect to qemu://
DEBUG: libvirt.c: do_open (driver 3 remote returned ERROR)
DEBUG: datatypes.c: virUnrefConnect (unref connection 0x1c60120 1)
DEBUG: datatypes.c: virReleaseConnect (release connection 0x1c60120)
Fehler: Verbindung zum Hypervisor scheiterte
[root@xxx03 ~]#
[root@ xxx03 ~]# virsh version
Kompiliert gegen die Bibliothek: libvir 0.5.1
Verwende Bibliothek: libvir 0.5.1
Verwende API: QEMU 0.5.1
Laufender Hypervisor: QEMU 0.9.1
2 p.m.
On Thu, Jan 22, 2009 at 06:10:47PM +0100, Daniel Schwager wrote:
[root@xxx03 ~]# virsh list
Id Name State
----------------------------------
oot@xxx03 ~]# virsh -c qemu+tls://localhost list
libvir: Remote error : Certificate's owner does not match the hostname
(localhost)
libvir: Remote error : unable to connect to 'localhost': Invalid
argument
error: failed to connect to the hypervisor
This is simply due to SSL certs containing the hostname, which must
match the hostname you connect to, so you can't use localhost with
SSL.
[root@xxx03 ~]# virsh -c qemu+tls://xxx03.domainname.com list
libvir: error : could not connect to qemu://
error: failed to connect to the hypervisor
This is missing the /system on the end of the URL
[root@xxx03 ~]# virsh -c qemu+ssh://xxx03.domainname.com list
root(a)xxx03.domainname.com password:
libvir: error : could not connect to qemu://
error: failed to connect to the hypervisor
Again missing the trailing /system on the URL
** Connecting directly works:
[root@ xxx03 ~]# virsh -c qemu:///system list
Id Name State
----------------------------------
** but not with the remote name like
[root@ xxx03 ~]# virsh -c qemu://xxx03.domainname.com /system list
libvir: error : could not connect to qemu://xxx03.domainname.com /system
error: failed to connect to the hypervisor
You have a space in the URI between the hostname and the '/system' bit
for some reason
You need
virsh -c qemu://xxx03.domainname.com/system
Regards,
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
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2:30 p.m.
You need
virsh -c qemu://xxx03.domainname.com/system
Yes sir - here we are ... you are right.
With xen, you DO NOT need the "system" in the URL.
The following works for xen - but not for qemu:
[root@xen04 ~]$ virsh -c xen+tls://xen04.domainname.com list
Id Name State
This is a little bit inconsequent/confusing (-:
But, if it's known, it's easy...
regards
Danny
2:51 p.m.
On Thu, Jan 22, 2009 at 09:30:50PM +0100, Daniel Schwager wrote:
> You need
>
> virsh -c qemu://xxx03.domainname.com/system
Yes sir - here we are ... you are right.
With xen, you DO NOT need the "system" in the URL.
Xen is less flexible than QEMU. You can only have a single Xen
connection per host. With QEMU you can have a system wide instance,
or a per-user instance (qemu:///session).
The following works for xen - but not for qemu:
[root@xen04 ~]$ virsh -c xen+tls://xen04.domainname.com list
Id Name State
This is a little bit inconsequent/confusing (-:
But, if it's known, it's easy...
http://libvirt.org/uri.html
Regards,
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
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