5a29fe4245
When using block migration, you need to specify one of NON_SHARED_INC or
NON_SHARED_DISK, otherwise the data is not transfered.
VIR_MIGRATE_LIVE is needed to be able to live migrate VM and not pause
them during the migration « Do not pause the VM during migration »
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/libvirt.c;h=48065359507f80cb1440aadc3baaea6af00c2a42;hb=HEAD#l6039
In Juno, we also have the VIR_MIGRATE_TUNNELLED « Tunnel migration data
over the libvirt RPC channel »
442f21c08c/nova/virt/libvirt/driver.py (L161-L163)
http://libvirt.org/git/?p=libvirt.git;a=blob;f=src/libvirt.c;h=48065359507f80cb1440aadc3baaea6af00c2a42;hb=HEAD#l6041
But we have a error with qemu-nbd…
virNetSocketReadWire:1477 : End of file while reading data: Input/output error
qemuMigrationBeginPhase:2088 : NBD in tunnelled migration is currently not supported
When not using VIR_MIGRATE_TUNNELLED flag, a new TCP connexion is
created during migration to transfer the disk image.