Reviewed: https://review.openstack.org/51316 Committed: http://github.com/openstack/nova/commit/c63f4af000af191a9a70b6b62dbda40a5c9b59e5 Submitter: Jenkins Branch: milestone-proposed
commit c63f4af000af191a9a70b6b62dbda40a5c9b59e5 Author: Nikola Dipanov <[email protected]> Date: Thu Oct 10 16:00:26 2013 +0200 Libvirt: disallow live-mig for volume-backed with local disk This patch makes libvirt raise an error if a live migration was requested without shared storage for a volume-backed instance, if that instance has any local disks. The reason is that without shared storage, local disks will be re-created on the destination node which can result in loss of data. Change-Id: Ic96dabf6020e957309280862b325792faf44b1f5 Closes-bug: 1236356 (cherry picked from commit cf89e78a1b921adee5b1943600315b0637fdefdc) ** Changed in: nova Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1236356 Title: Havana libvirt live migration should not be allowed without shared storage, even for volume-backed VMs Status in OpenStack Compute (Nova): Fix Released Bug description: The following patch related to bug #1074054 https://review.openstack.org/#/c/17118/ mistakenly allows live migration without shared storage, if the instance is volume backed - only in the libvirt driver. Bug #1235182 made this issue visible. this is not the correct thing to do because even though the instance root disk is a cinder volume - the instance might have additional disks that need to be migrated. Currently - nova would just create them on the destination node. Two possible solutions are: 1) Prevent non-block live migration without shared storage - effectively reverting https://review.openstack.org/#/c/17118/ 2) Allow live migration ONLY for volume backed instances that have no local disks. This might be a preferred way of solving the issue, as there is value in having the flexibility to have live migrations without the overhead of setting up shared storage for volume-only VMs To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1236356/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
