[CentOS] virt-install error: "virDomainLookupByName() failed got unknown HTTP error code 400"

Tue Aug 26 14:00:02 UTC 2008
Graeme West <graeme.west at gcal.ac.uk>

I found what it was: there were some incomplete virtual machine configuration files in /etc/xen which I'd generated for testing previously. Because they weren't complete and their IDs weren't attached to any actual VM, they were screwing up any calls to virDomainLookupByName() . Removing them did the trick.

Hope this helps somebody.

Graeme

On 26 Aug 2008, at 09:42, Graeme West wrote:

Sorry to bump my own thread, but does anyone have any ideas about this?

I've now tried virtually every combination of options in virt-manager and virt-install, and nothing seems to avoid this error (or let me get beyond the networking screen in virt-manager).

Has anyone encountered anything like this before?


Thanks,

Graeme


On 6 Aug 2008, at 09:41, Graeme West wrote:

Hi there,
I've been happily installing VMs in CentOS 5.2's Xen implementation using virt-manager. However, my latest attempt to use the install wizard in virt-manager failed when I got to the networking screen. The 'forward' button was unresponsive, and I was unable to proceed. I checked the virt-manager logs, and saw this appearing immediately after I tried to proceed:

/root/.virt-manager/virt-manager.log:

[Tue, 05 Aug 2008 16:16:53 virt-manager 20637] ERROR (virt-manager:132) Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/create.py", line 294, in forward
    if(self.validate(notebook.get_current_page()) != True):
  File "/usr/share/virt-manager/virtManager/create.py", line 974, in validate
    vm = self.connection.vmm.lookupByName(name)
  File "/usr/lib64/python2.4/site-packages/libvirt.py", line 646, in lookupByName
    if ret is None:raise libvirtError('virDomainLookupByName() failed', conn=self)
libvirtError: virDomainLookupByName() failed got unknown HTTP error code 400
None



There was also a lot of this in the main system log (1-2 messages per second):
[Tue, 05 Aug 2008 16:16:53 virt-manager 20637] DEBUG (connection:580) Couldn't fetch domain id 3; it probably went away

So I tried to use virt-install on the shell instead, but got much the same error:

[root at optimus swadmin]# virt-install --hvm --name=zurich.gcal.ac.uk --ram=2048 --file=/var/lib/xen/images/zurich.gcal.ac.uk.img --vnc --vcpus=2 --cdrom=/home/swadmin/software/OpenSolaris/sol-nv-b93-x86-dvd.iso --network=bridge:xenbr0


Starting install...
virDomainLookupByName() failed got unknown HTTP error code 400
Domain installation may not have been
 successful.  If it was, you can restart your domain
 by running 'virsh start zurich.gcal.ac.uk'; otherwise, please
 restart your installation.
Tue, 05 Aug 2008 17:30:18 ERROR    virDomainLookupByName() failed got unknown HTTP error code 400
Traceback (most recent call last):
  File "/usr/bin/virt-install", line 502, in ?
    main()
  File "/usr/bin/virt-install", line 462, in main
    dom = guest.start_install(conscb,progresscb)
  File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 813, in start_install
    return self._do_install(consolecb, meter)
  File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 829, in _do_install
    self._create_devices(meter)
  File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 727, in _create_devices
    nic.setup(self.conn)
  File "/usr/lib/python2.4/site-packages/virtinst/Guest.py", line 287, in setup
    vm = conn.lookupByName(name)
  File "/usr/lib64/python2.4/site-packages/libvirt.py", line 646, in lookupByName
    if ret is None:raise libvirtError('virDomainLookupByName() failed', conn=self)
libvirtError: virDomainLookupByName() failed got unknown HTTP error code 400

It suggests I try to start the domain anyway, but it hasn't been created:
[root at optimus swadmin]# virsh start zurich.gcal.ac.uk
libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName
error: failed to get domain 'zurich.gcal.ac.uk'


Any ideas would be much appreciated.


Thanks,

Graeme West


Glasgow Caledonian University is a registered Scottish charity, number SC021474

Email has been scanned for viruses by Altman Technologies' email management service<http://www.altman.co.uk/emailsystems>

<ATT00001.txt>


Glasgow Caledonian University is a registered Scottish charity, number SC021474

Email has been scanned for viruses by Altman Technologies' email management service<http://www.altman.co.uk/emailsystems>

<ATT00001.txt>


Glasgow Caledonian University is a registered Scottish charity, number SC021474
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