Hello, dcain !
I change the /var/lib/nova/instances in all computer nodes but a I have the same problem.
Error:
<179>Feb 29 17:43:53 node-3 nova-compute 2016-02-29 17:43:53.943 4270 ERROR nova.virt.libvirt.driver [req-dc1a9aba-5997-47ee-9e05-d28884b6fdfb 05f3d3e2ac4e420fb3951984998c3f66 3336ff9d2c464d78b39d8458af37c866 - - -] [instance: 02c278ba-b79a-49bb-bfd0-b5e7c5667679] Live Migration failure: Unsafe migration: Migration may lead to data corruption if disks use cache != none
<179>Feb 29 17:43:54 node-3 nova-compute 2016-02-29 17:43:54.440 4270 ERROR nova.virt.libvirt.driver [req-dc1a9aba-5997-47ee-9e05-d28884b6fdfb 05f3d3e2ac4e420fb3951984998c3f66 3336ff9d2c464d78b39d8458af37c866 - - -] [instance: 02c278ba-b79a-49bb-bfd0-b5e7c5667679] Migration operation has aborted
Config:
root@node-3:~# cat /etc/nova/nova.conf | grep live_migration_flag
#live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE, VIR_MIGRATE_PEER2PEER, VIR_MIGRATE_LIVE, VIR_MIGRATE_TUNNELLED
live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE,VIR_MIGRATE_PERSIST_DEST
Mount Point:
root@node-3:~# df -h
Filesystem Size Used Avail Use% Mounted on
udev 16G 12K 16G 1% /dev
tmpfs 3.2G 16M 3.2G 1% /run
/dev/dm-1 27G 2.7G 23G 11% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
none 5.0M 0 5.0M 0% /run/lock
none 16G 0 16G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/sda3 196M 44M 143M 24% /boot
/dev/mapper/vm-nova 47G 33M 47G 1% /var/lib/nova
10.250.3.253:/vol/openstack_inst 10G 1.2M 10G 1% /var/lib/nova/instances
10.250.3.253:/vol/openstack 750G 647G 104G 87% /var/lib/cinder/mnt/36f09148d1243e64fbe04aa72c497a2e
10.250.3.253:/vol/openstack 750G 647G 104G 87% /var/lib/nova/mnt/36f09148d1243e64fbe04aa72c497a2e