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[Akihiro Motoki <1370867@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Nova icehouse 2014.1.2

There is a case where nova absolute-limits returns negative values for *Used fields
even when there is no instance for the project (as below)

*Used should be 0 when there is no instance.

Note that after it happened, I booted one instance.
Then *Used fields became the correct value (1 for totalInstancesUsed)
After that the instance was deleted and *Used fields was reset to 0.

ubuntu@dev03:~$ nova list
+----+------+--------+------------+-----------i-+----------+
| ID | Name | Status | Task State | Power State | Networks |
+----+------+--------+------------+-------------+----------+
+----+------+--------+------------+-------------+----------+
ubuntu@dev03:~$ nova absolute-limits
+-------------------------+-------+
| Name                    | Value |
+-------------------------+-------+
| maxServerMeta           | 128   |
| maxPersonality          | 5     |
| maxImageMeta            | 128   |
| maxPersonalitySize      | 10240 |
| maxTotalRAMSize         | 51200 |
| maxSecurityGroupRules   | 20    |
| maxTotalKeypairs        | 100   |
| totalRAMUsed            | -2048 |
| maxSecurityGroups       | 10    |*
| totalFloatingIpsUsed    | 0     |
| totalInstancesUsed      | -1    |
| totalSecurityGroupsUsed | 1     |
| maxTotalFloatingIps     | 10    |
| maxTotalInstances       | 10    |
| totalCoresUsed          | -1    |
| maxTotalCores           | 20    |
+-------------------------+-------+

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: icehouse-backport-potential

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https://bugs.launchpad.net/bugs/1370867

Title:
  absolute-limits sometimes returns negative value

Status in OpenStack Compute (Nova):
  New

Bug description:
  Nova icehouse 2014.1.2

  There is a case where nova absolute-limits returns negative values for *Used fields
  even when there is no instance for the project (as below)

  *Used should be 0 when there is no instance.

  Note that after it happened, I booted one instance.
  Then *Used fields became the correct value (1 for totalInstancesUsed)
  After that the instance was deleted and *Used fields was reset to 0.

  ubuntu@dev03:~$ nova list
  +----+------+--------+------------+-----------i-+----------+
  | ID | Name | Status | Task State | Power State | Networks |
  +----+------+--------+------------+-------------+----------+
  +----+------+--------+------------+-------------+----------+
  ubuntu@dev03:~$ nova absolute-limits
  +-------------------------+-------+
  | Name                    | Value |
  +-------------------------+-------+
  | maxServerMeta           | 128   |
  | maxPersonality          | 5     |
  | maxImageMeta            | 128   |
  | maxPersonalitySize      | 10240 |
  | maxTotalRAMSize         | 51200 |
  | maxSecurityGroupRules   | 20    |
  | maxTotalKeypairs        | 100   |
  | totalRAMUsed            | -2048 |
  | maxSecurityGroups       | 10    |*
  | totalFloatingIpsUsed    | 0     |
  | totalInstancesUsed      | -1    |
  | totalSecurityGroupsUsed | 1     |
  | maxTotalFloatingIps     | 10    |
  | maxTotalInstances       | 10    |
  | totalCoresUsed          | -1    |
  | maxTotalCores           | 20    |
  +-------------------------+-------+

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