OpenStack (Juno)

スナップショットに時間がかかると失敗する。

glance.api.v1.upload_utils NotAuthenticated: Authentication required

Bug #1407592 “Snapshots fail to upload larger (~30G+) images, wi...” : Bugs : OpenStack Compute (nova)

keystone.conf
expiration_time=3600 

3600(1時間)をふやす。

イメージの削除に失敗 Ceph

Re: [ceph-users] cannot remove rbd image, snapshot busy

CPUが異なるホスト間でのライブマイグレーションが失敗する。

Junoにもバックポートされてない。

Daniel Schneller (daniel-schneller) wrote on 2015-02-23:

Ok. So if I wanted to have reliable live migration on my Icehouse cluster, would this be a valid approach?

1) Find lowest common denominator CPU model across all hypervisors using virsh capabilities / virsh cpu-baseline
2) Configure nova-compute.conf to include cpu_mode=custom, cpu_model=Westmere (in my case)
3) Disable the CPU check in nova/virt/libvirt/driver.py (comment out line 4248)
4246 # Compare CPU
4247 source_cpu_info = src_compute_info['cpu_info']
4248 self._compare_cpu(source_cpu_info)

Assuming this cluster is not going to get any older CPU or non-Intel CPU models in the future, this should be safe, right?

Bug #1082414 “Live migration between hosts with differents CPU m...” : Bugs : OpenStack Compute (nova)

その他、参考

https://wiki.openstack.org/wiki/LibvirtXMLCPUModel

https://groups.google.com/forum/#!topic/openstack-ja/npbwB3AiT_M