Hi Michal,

We're testing libvirt-1.2.13 and found it failed to live migrate domains with attached network drives. The change to libvirt was made in commit cf54c606, announced here: https://www.redhat.com/archives/libvir-list/2014-November/msg01053.html

It's not necessary to precreate network drives. They're created during nova live migration in openstack. How about this patch?

diff -U3 -r libvirt-1.2.13.orig/src/qemu/qemu_migration.c libvirt-1.2.13/src/qemu/qemu_migration.c
--- libvirt-1.2.13.orig/src/qemu/qemu_migration.c 2015-02-23 22:04:12.000000000 -0800
+++ libvirt-1.2.13/src/qemu/qemu_migration.c 2015-03-18 12:18:14.137990147 -0700
@@ -1510,6 +1510,9 @@
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_DIR:
case VIR_STORAGE_TYPE_NETWORK:
+ ret = 0;
+ goto cleanup;
+ break;
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,

Cheers,

Noel Burton-Krahn

Sr, Distributed Systems Engineer

Piston Cloud Computing