see comments on review
** Changed in: nova
Status: Triaged => Invalid
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https://bugs.launchpad.net/bugs/1266415
Title:
Compute node reports wrong amount of free memory
Status in OpenStack Compute (Nova):
Invalid
Bug description:
In nova/compute/resource_tracker.py in the definition of the
_update_usage_from_instances function the amount of free memory
reported by the hypervisor layer gets overwriten by the amount of
configured host reserved memory:
resources['memory_mb_used'] = CONF.reserved_host_memory_mb
If the compute host uses more memory (not counting the VMs memory
usage) than the reserved_host_memory, it results in erroneus free
memory reporting by the compute host and consequently to suboptimal
scheduling.
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