Ok. so i have added the option you mentioned, restarted nfs and remounted on the compute nodes.
Now i get this error: http://paste.openstack.org/show/19260/ :S On Wed, Jul 4, 2012 at 4:18 PM, Daniel P. Berrange <berra...@redhat.com>wrote: > On Tue, Jul 03, 2012 at 02:48:05PM +0100, Leander Bessa Beernaert wrote: > > Hello all, > > > > I've been trying to get the live migration to work according to the guide > > > http://docs.openstack.org/trunk/openstack-compute/admin/content/configuring-live-migrations.html > . > > > > So far i've setup 2 compute nodes and 1 controller node. They all share > the > > /var/lib/nova/instances dir. I've already verified that the nova user id > is > > the same across all the servers. > > > > Currently i'm running into this error when i launch an instance: > > http://paste.openstack.org/show/19221/ > > > > It's certainly a permission issue, so i tried adding the group "nova" to > > the user "libvirt-qemu". However, it still doesn't work. To which user > must > > i give the nova group permission in order to be able to write in that > > directory? > > So the error message you get here: > > libvirtError: Unable to pre-create chardev file > '/var/lib/nova/instances/instance-00000004/console.log': Permission denied > > is coming from the libvirt QEMU driver code. This code runs as root:root > in the libvirtd daemon. As such, ordinarily permissions would not be a > problem that blocks libvirtd doing what it wants. NFS is horrible / > special though, and has this capability "root squash" which causes any > client host processes running as root to be treated as if they were > running as 'nfsnobody' or a similar unprivileged user. So if you want > libvirtd to be able to use this mount point you'll need to make sure > that your NFS server has root squash disabled. eg by adding the option > 'no_root_squash' to the /etc/exports file for that mount. > > > Daniel > -- > |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/:| > |: http://libvirt.org -o- http://virt-manager.org:| > |: http://autobuild.org -o- http://search.cpan.org/~danberr/:| > |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc:| >
_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
