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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

Mitaka is very old at this point. Is this still a problem on newer
releases, like Pike or Rocky?

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1805887

Title:
  Used RAM greater than Available RAM with ram allocation ratio is set
  to 0.9

Status in OpenStack Compute (nova):
  Invalid

Bug description:
  Hello,

  We are facing in a production openstack Mitaka a situation where the
  used RAM (reported by Nova) is greater than the available RAM
  (reported by Nova) and the ram allocation ratio is set  to 0.9.

  Used ram: 624.5 GB Available:503.8 GB

  The real available memory in the compute is 70GB.

  Is it something we need to worry about ( Even if all instances in the compute start using their real allocated memory) ?
  We are not able to reproduce this behavior in a test environment.

  Environment:

  ii  nova-common                          2:13.1.4-0ubuntu4.2                        all          OpenStack Compute - common files
  ii  nova-compute                         2:13.1.4-0ubuntu4.2                        all          OpenStack Compute - compute node base
  ii  nova-compute-kvm                     2:13.1.4-0ubuntu4.2                        all          OpenStack Compute - compute node (KVM)
  ii  nova-compute-libvirt                 2:13.1.4-0ubuntu4.2                        all          OpenStack Compute - compute node libvirt support
  ii  python-nova                          2:13.1.4-0ubuntu4.2                        all          OpenStack Compute Python libraries

  
  Hypervisor: Libvirt + KVM

  Storage: Ceph

  Netowkring: Neutron + linuxbridge

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