Public bug reported:
When looking at hypervisor resources through either nova hypervisor-
stats or nova hypervisor-show with compute nodes of differing sizes, I
am getting incorrect/inconsistent values back for one of the
hypervisors. For example, in an environment with one 32 GB compute node
and one 16 GB node, I see the following when running nova hypervisor-
show multiple times on the 32 GB node:
$ nova hypervisor-show 1 | grep memory_mb
| memory_mb | 15934 |
| memory_mb_used | 20992 |
$ nova hypervisor-show 1 | grep memory_mb
| memory_mb | 31906 |
| memory_mb_used | 20992 |
hypervisor-stats shows similar incorrect behavior:
$ nova hypervisor-stats | grep memory_mb
| memory_mb | 31868 |
| memory_mb_used | 34304 |
$ nova hypervisor-stats | grep memory_mb
| memory_mb | 63812 |
| memory_mb_used | 34304 |
>From what I can tell, the same stats are being returned for both
hypervisors, but which node's stats are being used randomly changes.
This particular environment is a two node devstack setup built today,
but I've seen similar behavior in a three compute TripleO deployment
using recent builds of Nova for at least a couple of weeks.
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1585826
Title:
nova hypervisor-show/stats reports incorrect values
Status in OpenStack Compute (nova):
New
Bug description:
When looking at hypervisor resources through either nova hypervisor-
stats or nova hypervisor-show with compute nodes of differing sizes, I
am getting incorrect/inconsistent values back for one of the
hypervisors. For example, in an environment with one 32 GB compute
node and one 16 GB node, I see the following when running nova
hypervisor-show multiple times on the 32 GB node:
$ nova hypervisor-show 1 | grep memory_mb
| memory_mb | 15934 |
| memory_mb_used | 20992 |
$ nova hypervisor-show 1 | grep memory_mb
| memory_mb | 31906 |
| memory_mb_used | 20992 |
hypervisor-stats shows similar incorrect behavior:
$ nova hypervisor-stats | grep memory_mb
| memory_mb | 31868 |
| memory_mb_used | 34304 |
$ nova hypervisor-stats | grep memory_mb
| memory_mb | 63812 |
| memory_mb_used | 34304 |
From what I can tell, the same stats are being returned for both
hypervisors, but which node's stats are being used randomly changes.
This particular environment is a two node devstack setup built today,
but I've seen similar behavior in a three compute TripleO deployment
using recent builds of Nova for at least a couple of weeks.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1585826/+subscriptions
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