Comment 1 for bug 1686703

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Matthew Booth (mbooth-9) wrote :

As mentioned in the above ML post, I don't think the image cache manager should expire the image of an instance while a migration is active. However, also as described in the post I'm not convinced it's currently possible to reliably identify if a migration is ongoing.

My current thought is that we could send the image from source to dest during migrate_disk_and_power_off. This way, all data transfer would happen in the same place, and any failure involving user data would happen before the switch, not after.

However, while this would resolve this failure mode, I still think it would be better for the image cache manager to consider instances with active migrations.