Ritesh,
I did a test: I downloaded a qcow2 format ubuntu 12.04(http://docs.openstack.org/essex/openstack-compute/admin/content/starti ng-images.html) and use it create a new instance. Everything is fine,no any error information occurred. But when I reboot compute node, the situation was same, and after run virsh define again then to restart nova-compute, in the ubuntu12.04 instance booting, it also gives out: libvir: QEMU error : Domain not found: no domain with matching name 'instance-0000000c' but finally, instance: 7f2050b7-b83b-4603-b7c2-3a6912188e9c] Instance rebooted successfully, means this instance run normally and I also could ssh it, same like others before. So, it looks like no relation about images. I think perhaps something in libvirt or qemu perhaps had potential problems. The situation is: If I only create one instance from ubuntu12.04 and run it in the first one, anything run well, have no "libvirt:QEMU error,.." Information comes out; If I continue to boot instance from the centos(image created by me) or fedora(downloaded from http://docs.openstack.org/essex/openstack-compute/admin/content/starting-ima ges.html) or windows image,it show me: "libvirt:QEMU error,domain not found...",but instance would finally spawn successfully and run well. It looks like "libvirt:QEMU error,domain not found,." does not stop instance running and working. But, I did not know why reboot nova-compute node, /etc/libvirt/qemu would delete the one of instances XML file and nova-compute would stop to continue. Romi From: romi zhang [mailto:romizhang1...@163.com] Sent: Saturday, September 15, 2012 2:32 PM To: 'Ritesh Nanda' Cc: 'openstack@lists.launchpad.net' Subject: RE: [Openstack] strange problem when reboot nova-compute node: domain not found: no domain with matching name Ritesh, I will try your method. In the past,when I boot a new instance from a ubuntu image,it works ok. Centos and windows image was created by me according docs.openstack.org information,and every time when a new instance created from centos and windows,system always told me "Libvirt: QEMU error: Domain not found: no domain with matching name,...", but finally, the instance works well. So, I am not clear about the reason. Thanks. Romi From: Ritesh Nanda [mailto:riteshnand...@gmail.com] Sent: Friday, September 14, 2012 3:12 AM To: romi zhang Cc: openstack@lists.launchpad.net Subject: Re: [Openstack] strange problem when reboot nova-compute node: domain not found: no domain with matching name Hello romi, Image got into a stuck state , only solution is to hack your database for this particular instance and mark it as deleted, den restart nova-* service, it would start working. On Thu, Sep 13, 2012 at 9:45 PM, romi zhang <romizhang1...@163.com> wrote: Hi, I've installed essex and when I reboot one of the nova-compute node and next when I start nova-compute service again,the system promote: Libvirt: QEMU error: Domain not found: no domain with matching name 'instance-0000000a' Then I found: #ls /var/lib/nova/instances _base instance-0000000a instance-0000000b instance-0000000c #ls /etc/libvirt/qemu instance-0000000b.xml instance-0000000c.xml Network So: /var/lib/nova/instances/instance-0000000a# virsh define libvirt.xml Domain instance-0000000a defined from libvirt.xml And: #ls /etc/libvirt/qemu Instance-0000000a.xml instance-0000000b.xml instance-0000000c.xml network Then I restart: nova-compute &, and nova-compute could normally started. I did not understand why reboot compute node,and usually the first instance's xml file was deleted and nova-compute will terminate. By the way, when I create a new instance, the first line in the log also is : Libvirt: QEMU error: Domain not found: no domain with matching name 'instance-0000000a' Anyone who had met such a problem and why? Regards, romi _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- With Regards Ritesh Nanda
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