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["Markus Zoeller \(markus_z\)" <mzoeller@xxxxxxxxxxxxxxxxxx>]

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (LIBERTY, MITAKA, OCATA, NEWTON).
  Valid example: CONFIRMED FOR: LIBERTY


** Changed in: nova
   Importance: Low => Undecided

** Changed in: nova
       Status: Confirmed => Expired

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https://bugs.launchpad.net/bugs/1315988

Title:
  report disk consumption incorrect in nova-compute

Status in OpenStack Compute (nova):
  Expired

Bug description:
  I have following flavor
  jichen@controller:~$ nova flavor-list
  +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
  | ID | Name      | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
  +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
  | 1  | m1.tiny   | 512       | 1    | 0         |      | 1     | 1.0         | True      |
  | 11 | t.test1   | 512       | 1    | 5         |      | 1     | 1.0         | True      |
  | 2  | m1.small  | 2048      | 20   | 0         |      | 1     | 1.0         | True      |
  | 3  | m1.medium | 4096      | 40   | 0         |      | 2     | 1.0         | True      |
  | 4  | m1.large  | 8192      | 80   | 0         |      | 4     | 1.0         | True      |
  | 5  | m1.xlarge | 16384     | 160  | 0         |      | 8     | 1.0         | True      |
  +----+-----------+-----------+------+-----------+------+-------+-------------+-----------+

  I used following command
  nova boot --flavor 11 --key_name mykey --image 47b00a69-ba84-4dce-bc7e-72ffc5a5d93e --ephemeral 2 t6

  so the disk consumption is 2G instead of 5G

  
  but I added following logs:
  def _update_usage(self, resources, usage, sign=1):
          mem_usage = usage['memory_mb']

          overhead = self.driver.estimate_instance_overhead(usage)
          mem_usage += overhead['memory_mb']

          resources['memory_mb_used'] += sign * mem_usage
          resources['local_gb_used'] += sign * usage.get('root_gb', 0)
          resources['local_gb_used'] += sign * usage.get('ephemeral_gb', 0)

          LOG.audit(_("------%s %s------") % (usage.get('ephemeral_gb',
  0), usage.get('root_gb', 0)))

  
  I got following info in the log
  2014-05-05 11:27:12.105 5209 AUDIT nova.compute.resource_tracker [-] ------5 1------

  
  so the free disk was changed from 
  2014-05-05 10:16:16.174 3033 AUDIT nova.compute.resource_tracker [-] Free disk (GB): 35

  to

  2014-05-05 10:16:16.174 3033 AUDIT nova.compute.resource_tracker [-]
  Free disk (GB): 29

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