We're using OpenNebula to simulate a simple replicated JBoss application.
We've installed all opennebula packages, qemu and kvm and libvirt.
We have created a simple ethernet network ad hoc between my pc (a node) and the one of my friend (which is both node and front-end) by plugging an ethernet cable between me and him (10.0.0.1 and 10.0.0.2).
So we can ping each other correctly, we've set everything to that we can ssh without a password to each other with "oneadmin" user.
We've configured all files such as below:
/etc/libvirt/libvirtd.conf
/etc/default/libvirtd-bin
And so on... kvm and kvm-intel are both enabled. The daemon libvirtd -d -l seems to start correctly.
In fact, from the gui of opennebula in the front end, we can see both the hosts monitored.
Anyway there's a problem when we try to start the virtual machine on the node which is not the front-end. I mean when we try to do a deploy of a VM on the other node. The error is something like this
cannot stat `/var/lib/one/datastores/1/f5394317d377beaa09fc07697df9ff68
but if, from the front end which has virtual machine n°1 we perform, cd /var/lib/one/datastores/1 then we can see that file, we've also given all the permissions to it... Any idea? :(
This may be related with the datastore configuration. If you left the default values, OpenNebula expects a shared filesystem (ie NFS) between the front-end and the virtualization nodes.
More context on the error (which I believe can be found in /var/lib/one/oned.log) would help analysing this problem.