[Openstack-operators] Problem with custom flavors "virtual size larger than flavor root disk size"

Juan José Pavlik Salles jjpavlik at gmail.com
Mon Nov 18 18:31:27 UTC 2013


Hi guys, i've deleted the default flavors and created our own like this:

+-----+--------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| ID  | Name   | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor
| Is_Public | extra_specs |
+-----+--------+-----------+------+-----------+------+-------+-------------+-----------+-------------+
| 100 | small  | 512       | 10   | 0         | 512  | 1     | 1.0
| True      | {}          |
| 101 | medium | 1024      | 10   | 0         | 512  | 2     | 1.0
| True      | {}          |
| 102 | big    | 4096      | 10   | 0         | 512  | 4     | 1.0
| True      | {}          |
| 103 | large  | 8192      | 10   | 0         | 512  | 8     | 1.0
| True      | {}          |
+-----+--------+-----------+------+-----------+------+-------+-------------+-----------+-------------+

We can create instances with all of them with no problems at all, but...
when i try to do soft reboot to , for instance, a medium flavor instance i
get this in nova-compute.log

2013-11-18 17:41:27.862 ERROR nova.virt.libvirt.imagebackend
[req-55af4cf8-5936-4764-817c-47f165ea61ee 20390b639d4449c18926dca5e038ec5e
d1e3aae242f14c488d2225dcbf1e96d6] /var/lib/nova/instances/_base/swap
virtual size larger than flavor root disk size 536870912
2013-11-18 17:41:27.863 ERROR nova.compute.manager
[req-55af4cf8-5936-4764-817c-47f165ea61ee 20390b639d4449c18926dca5e038ec5e
d1e3aae242f14c488d2225dcbf1e96d6] [instance:
da36019f-036b-4ca7-9ce2-6223db882ba6] Cannot reboot instance: Image is
larger than instance type allows

The solution was to do a hard reboot to the instance, that... somehow
solved the problem. Any ideas?

Cheers!!!

-- 
Pavlik Salles Juan José
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