Hi, I'm looking at what first manifested as a bug when launching multiple lxc containers simultaneously, i.e. 'euca-run-instances -n 4', as reported at https://bugs.launchpad.net/ubuntu/+source/nova/+bug/842845.
The problem appears to be that nova uses self.driver.get_info(). Libvirt can raise excpetions on this for several reasons - the vm could be bad or not exist, or it could be in a transient state i.e. cgroups are not set up yet. What is the right way to handle this? Should the drivers categorize their exceptions into either 'broken' or 'transient' ones, so that nova can detect former and bail, and retry on the latter? Note that while the bug was raised for lxc, I suspect the same should be possible with kvm ones. However the qemu GetInfo method doesn't get its cpu/mem usage info from cgroups, so it would not happen the exact same way. -serge _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
