With remote storage, swap disk size changed after resize-revert

Bug #1781643 reported by Chris Friesen
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OpenStack Compute (nova)

Bug Description

There seems to be an issue (discovered in Pike) where ceph-backed swap does not return to the original size if a resize operation is reverted.

Steps to reproduce:
1) Configure compute nodes to use remote ceph-backed storage for instances.
2) Launch a vm with with ephemeral and swap disk. (The swap disk will be RBD-backed.)
3) Resize vm to a new flavor with larger swap disk size. The swap disk will be resized to the larger size.
4) Resize-revert to original flavor.
5) Check actual disk sizes from within the VM and from ceph directly.

Expected behaviour:
VM swap disk size should be reverted back to original size.

Actual behaviour:
VM swap disk remains at the larger size.

Revision history for this message
jichenjc (jichenjc) wrote :

not directly related but looks similar

seems swap disk in resize action has some issue overall

Changed in nova:
status: New → Triaged
importance: Undecided → Low
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