** Changed in: nova/juno
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1305897
Title:
Hyper-V driver failing with dynamic memory due to virtual NUMA
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) juno series:
Fix Released
Bug description:
Starting with Windows Server 2012, Hyper-V provides the Virtual NUMA
functionality. This option is enabled by default in the VMs depending
on the underlying hardware.
However, it's not compatible with dynamic memory. The Hyper-V driver
is not aware of this constraint and it's not possible to boot new VMs
if the nova.conf parameter 'dynamic_memory_ratio' > 1.
The error in the logs looks like the following:
2014-04-09 16:33:43.615 18600 TRACE nova.virt.hyperv.vmops HyperVException:
WMI job failed with status 10. Error details: Failed to modify device 'Memory'.
2014-04-09 16:33:43.615 18600 TRACE nova.virt.hyperv.vmops
2014-04-09 16:33:43.615 18600 TRACE nova.virt.hyperv.vmops Dynamic memory and
virtual NUMA cannot be enabled on the same virtual machine. -
'instance-0001c90c' failed to modify device 'Memory'. (Virtual machine ID
F4CB4E4D-CA06-4149-9FA3-CAD2E0C6CEDA)
2014-04-09 16:33:43.615 18600 TRACE nova.virt.hyperv.vmops
2014-04-09 16:33:43.615 18600 TRACE nova.virt.hyperv.vmops Dynamic memory and
virtual NUMA cannot be enabled on the virtual machine 'instance-0001c90c'
because the features are mutually exclusive. (Virtual machine ID
F4CB4E4D-CA06-4149-9FA3-CAD2E0C6CEDA) - Error code: 32773
In order to solve this problem, it's required to change the field
'VirtualNumaEnabled' in 'Msvm_VirtualSystemSettingData' (option
available only in v2 namespace) while creating the VM when dynamic
memory is used.
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