Comment 12 for bug 1203193

[In reply to comment #9]

Pawel, seems like there's general agreement from libvirt upstream that this needs to be handled at a higher-layer than libvirt.

[Below is a comment from IRC, by Dan Berrangé, on this topic, from here: https://bugzilla.redhat.com/show_bug.cgi?id=994882#c3 ]
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"This bug is basically asking for the block migration functionality to extend to other qemu devices backed by files. This is pretty tricky in general, because with latest libvirt & qemu, qemu doesn't even get acess to the log files. It just gets given an anonymous pipe file descriptor, so it has no ability to migrate the log file even if it wanted to.

libvirt tries to only concern itself with what happens on a single-node
so moving stuff between nodes is left to the app using libvirt which knows better what to do".
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And, Pawel just agreed on #openstack-nova that it "sounds fair that higher-layer should handle this, yes".