On Tue, Jul 24, 2012 at 10:52 AM, Kevin Wolf <kw...@redhat.com> wrote: > Am 23.07.2012 16:22, schrieb benoit.ca...@gmail.com: >> From: Benoît Canet <ben...@irqsave.net> >> >> This patchset is designed to avoid starting a live migration while any of >> the block device is busy. >> >> Tested with the following sequence: >> >> QEMU 1.1.50 monitor - type 'help' for more information >> (qemu) block_stream virtio0 1k >> (qemu) migrate tcp:localhost:4444 >> migrate: Migration is blocked by streaming >> (qemu) block_job_cancel virtio0 >> (qemu) migrate tcp:localhost:4444 >> migrate: Connection can not be completed immediately >> (qemu) >> => migration then succeed > > Maybe I'm missing the obvious, but why? Migration will stop the > streaming if it isn't restarted explicitly on the destination, but I > think that's expected.
Hmm...maybe this is a policy decision. I figure if you are running image streaming and try to migrate, chances are you're migration will break on the destination host because you were trying to do pre-copy storage migration and never finished. Stefan
