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This looks like a bug, so you could raise a bug on cinder at 
https://bugs.launchpad.net/cinder/+filebug

When you do you could include information about the version of cinder 
you are using, is it grizzy, folsom or are you testing on head?

Also, if you can include any context information for example had that 
project id had used more quota in the past and deleted it?

It would also be useful to search through any cinder logs for other 
error warnings, in case there was a failure in the past, when quota was 
either consumed or recovered by this project and where the operation was 
not completed successfully.

Ollie




On 12/06/13 10:02, Heiko Krämer wrote:
> Hi guys,
>
> I'm running in a problem raised by cinder api.
>
> I'll show you the log output it's more then my explaination :)
>
>
> 2013-06-12 10:50:13    AUDIT [cinder.api.v1.volumes] Create volume of 30 GB
> 2013-06-12 10:50:13  WARNING [cinder.volume.api] Quota exceeded for
> d4e1c14691d841f6b53a24b6c4c42a0e, tried to create 30G volume (172G of
> 200G already consumed)
> 2013-06-12 10:50:13    ERROR [cinder.api.middleware.fault] Caught error:
> Requested volume or snapshot exceeds allowed Gigabytes quota
>
>
> root at api2:~# cinder list
> +--------------------------------------+--------+---------------------------------------------+------+-------------+----------+--------------------------------------+
> |                  ID                  | Status |
> Display Name                | Size | Volume Type | Bootable
> |             Attached to              |
> +--------------------------------------+--------+---------------------------------------------+------+-------------+----------+--------------------------------------+
> | 6ce6f626-2d2b-4a17-8933-13e196fa650c | in-use |
> bosh                    |  10  |   default   |  false   |
> 567a4c86-08ab-43cd-b9bc-3b220f2bf262 |
> | 8822b84b-595e-4b6f-9636-472dae7c33a4 | in-use |
> volume-64e51c64-5da4-4981-9b05-f7abfc6695b1 |  16  |     None    |
> false   | 65f33296-c2b0-4824-b887-359ee0462b56 |
> | d56e5a86-f6d1-43ed-b125-2ff977aefa24 | in-use |
> volume-363573c1-05d6-4484-9aad-0919e47546e0 |  5   |     None    |
> false   | fbb809d5-71f3-4a78-9cb7-4913c1e0af83 |
> | f7506174-4ae4-4a3c-928f-47b785bb35f5 | in-use |
> volume-385997c8-709c-4fa2-9d5b-ca2bba9d4e87 |  7   |     None    |
> false   | 0f1ab672-043a-4361-afd5-9f2ddd818ed8 |
> +--------------------------------------+--------+---------------------------------------------+------+-------------+----------+--------------------------------------+
>
>
> root at api2:~# cinder quota-show d4e1c14691d841f6b53a24b6c4c42a0e
> +-----------+-------+
> |  Property | Value |
> +-----------+-------+
> | gigabytes |  200  |
> | snapshots |   20  |
> |  volumes  |   30  |
> +-----------+-------+
>
>
>
> you see I consume only 38GB of 200GB and not 172GB (log).
> It's anything wrong with caching by cinder ? Have anyone the same
> problem or any hints ?
>
>
> Greetings
> Heiko
>
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