應該只有影響 ocata

Ref.
OpenStack KVM

[ocata] unsupported configuration: CPU mode ‘host-model’ for aarch64 kvm domain on aarch64 host is not supported by hypervisor

程式解法
aarch64: set default cpu_mode to host-passthrough

The post unsupported configuration: CPU mode ‘host-model’ for aarch64 kvm domain on aarch64 host is not supported by hypervisor appeared first on richliu's blog.

no valid host was found. There are not enough hosts available.
Code
500
Details
File "/usr/lib/python2.7/dist-packages/nova/conductor/manager.py", 
line 526, in build_instances context, request_spec, filter_properties) File "/usr/lib/python2.7/dist-packages/nova/conductor/manager.py", 
line 597, in _schedule_instances hosts = self.scheduler_client.select_destinations(context, spec_obj) File "/usr/lib/python2.7/dist-packages/nova/scheduler/utils.py", 
line 371, in wrapped return func(*args, **kwargs) File "/usr/lib/python2.7/dist-packages/nova/scheduler/client/__init__.py", 
line 51, in select_destinations return self.queryclient.select_destinations(context, spec_obj) File "/usr/lib/python2.7/dist-packages/nova/scheduler/client/__init__.py", 
line 37, in __run_method return getattr(self.instance, __name)(*args, **kwargs) 
File "/usr/lib/python2.7/dist-packages/nova/scheduler/client/query.py", 
line 32, in select_destinations return self.scheduler_rpcapi.select_destinations(context, spec_obj) 
File "/usr/lib/python2.7/dist-packages/nova/scheduler/rpcapi.py", 
line 129, in select_destinations return cctxt.call(ctxt, 'select_destinations', **msg_args) 
File "/usr/lib/python2.7/dist-packages/oslo_messaging/rpc/client.py", 
line 169, in call retry=self.retry) 
File "/usr/lib/python2.7/dist-packages/oslo_messaging/transport.py", 
line 97, in _send timeout=timeout, retry=retry) 
File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", 
line 458, in send retry=retry) File "/usr/lib/python2.7/dist-packages/oslo_messaging/_drivers/amqpdriver.py", 
line 449, in _send raise result

Possible reason

* if using cloud uefi image, it needs to install qemu-efi package in computer node, don’t know why it won’t install it automatically .
$ apt install qemu-efi
* when add new UEFI image, it needs to add new meta data parameter in Horization
hw_firmware_type=uefi

if see

2017-08-01 14:02:13.612 2409 ERROR nova.compute.manager [instance: b334f0b3-ca9a-4f9a-b488-532dce00265a] libvirtError: unsupported configuration: logfile not supported in this QEMU binary
2017-08-01 14:02:13.612 2409 ERROR nova.compute.manager [instance: b334f0b3-ca9a-4f9a-b488-532dce00265a]
# Use the "logd" backend for handling stdout/stderr from QEMU processes.

Reason
* Libvirt later version support new function, logd, it’s a new console log function, but ARM64 doesn’t support it. workaround solution is to disable it

Edit file /usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py, find

MIN_LIBVIRT_VIRTLOGD = (1, 3, 3)
MIN_QEMU_VIRTLOGD = (2, 7, 0)

Replaced it with

MIN_LIBVIRT_VIRTLOGD = (9, 9, 9)
MIN_QEMU_VIRTLOGD = (9, 9, 9)

it can avoid to call libvirt logd function.

rm -f /usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.pyc, make sure it will call .py
then, reboot service (or system)

Ref.
http://dozencloud.org/

The post No valid host was found. There are not enough hosts available appeared first on richliu's blog.