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Thanks a lot to both for your answers,

I can not manually solve the issue since it's an automatic process during
the live migrate action and afterwards the path is deleted. There's an
issue "during" the live migration that causes this error.

I'll try the proposed patch and report backup afterwards.

Regards,
Samuel.


On 24 December 2014 at 03:46, ChangBo Guo <glongwave at gmail.com> wrote:

> I have been trying to fix similar issue in
> https://review.openstack.org/#/c/134693/
> not sure that also fixes your issue.
>
> 2014-12-24 10:09 GMT+08:00 Yaguang Tang <heut2008 at gmail.com>:
>
>> Hi samuel,
>>
>> Sometimes live migration couldn't be rollback when error occurs, so the
>> destination instance disk path remains there, you have to manually resolve
>> this by delete that directory manually, and please try again.
>>
>> On Tue, Dec 23, 2014 at 11:24 PM, samuel <samu60 at gmail.com> wrote:
>>
>>> Dear list,
>>>
>>> We've recently faced an issue regarding live migration on a Juno
>>> openstack installation using a ceph giant shared storage.
>>>
>>> The error that appear is
>>>
>>> DestinationDiskExists: The supplied disk path
>>> (/var/lib/nova/instances/instance-id-hidden) already exists, it is expected
>>> not to exist.
>>>
>>> I've located several entries, such as:
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1150856
>>> https://review.openstack.org/#/c/111082/
>>>
>>> But the error still persist and some of the patches have already been
>>> included. The current version is the following:
>>>
>>> Name        : openstack-nova-compute
>>> Version     : 2014.2.1
>>> Release     : 1.el7.centos
>>>
>>>
>>> It looks like there's an issue regarding shared storage and the
>>> assumptions of this path.
>>>
>>> Can anyone provide information about this issue?
>>>
>>> Regards,
>>> Samuel.
>>>
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>>>
>>>
>>
>>
>> --
>> Tang Yaguang
>>
>>
>>
>>
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>>
>
>
> --
> ChangBo Guo(gcb)
>
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