On 11/07/2016 10:03 AM, Matt Riedemann wrote:
Nova has a known gap in integration testing of ephemeral/swap disks, especially
around resizes and migrations.
In Newton, Diana Clarke worked on a Tempest patch to verify the size of disks
before and after a resize:
https://review.openstack.org/#/c/338411/
The QA team took issue with that patch because it creates specific flavors which
might not work in all clouds, which is a valid concern.
At the summit some of the Nova people talked about what if we just added
ephemeral/swap to the flavors that devstack creates and puts in tempest.conf -
then we'd get some implicit coverage of those by default. That doesn't really
help non-devstack CI systems, but I'm not entirely sure it matters, at least
right now.
If we did have a specific test for this, like Diana's above, then we could just
skip the test if the flavors in tempest.conf don't have ephemeral/swap defined.
That would allow us to test this in the upstream CI, and external CI could also
test it if they wanted to, but it wouldn't break external CI.
Would that be OK? Or are there other issues with that approach?
This sounds like a start...given that we default to no preallocation, the real
increased disk consumption should be minimal.
Chris
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