Incorrect usage reported in Horizon for downsized Vms

[Radoslav]

When instance is downsized storage does not shrink. When one views quota usage in horizon it shows the current flavor disk size which is not correct. Actual disk size is the biggest flavor disk size the instance has been resized to.

[Kyrylo Romanenko (kromanenko)]

Hello, Radoslav. Do instance shrinking by itself works properly?

[Radoslav (radoslav-milanov)]

Depends what do you mean by "instance shrinking":

Memory and CPU gets decreased, storage does not - most images use xfs
which supports only growing so storage does not shrink. But horizon
thinks storage has shrunk for usage calculation and this allows for
users to cheat on storage quotas.

On 7.9.2017 г. 11:04 ч., Kyrylo Romanenko wrote:
> Hello, Radoslav. Do instance shrinking by itself works properly?
>

[Kyrylo Romanenko (kromanenko)]

Thanks!

[Kyrylo Romanenko (kromanenko)]

It seems that Horizon counts on Volumes and Volume Storage gauges only Cinder volumes, not regarding to Instances and their flavors.

[Kyrylo Romanenko (kromanenko)]

For example i have resized instance from 5 to 10 Gb and this did not changed readings on Volumes and Storage gauges.

[Radoslav (radoslav-milanov)]

I observed the issue with VM ephemeral storage.

Thanks.

On 8.9.2017 г. 09:11 ч., Kyrylo Romanenko wrote:
> For example i have resized instance from 5 to 10 Gb and this did not
> changed readings on Volumes and Storage gauges.
>
> ** Attachment added: "resize_up.png"
> https://bugs.launchpad.net/horizon/+bug/1670786/+attachment/4946539/+files/resize_up.png
>

[Radoslav (radoslav-milanov)]

It seems latest Ocata code does not allow the resize operation to
complete if target disk size is smaller than current one so this might
no longer be an issue.

On 8.9.2017 г. 09:11 ч., Kyrylo Romanenko wrote:
> For example i have resized instance from 5 to 10 Gb and this did not
> changed readings on Volumes and Storage gauges.
>
> ** Attachment added: "resize_up.png"
> https://bugs.launchpad.net/horizon/+bug/1670786/+attachment/4946539/+files/resize_up.png
>

[Ying Zuo (yingzuo)]

It's not very clear what the issue is for this ticket. What usage quota is incorrect and where do you see it?

[Launchpad Janitor (janitor)]

[Expired for OpenStack Dashboard (Horizon) because there has been no activity for 60 days.]