[ovirt-users] After realizing HA migration, the virtual machine can still get the virtual machine information by using the "vdsm-client host getVMList" instruction on the host before the migration.

[Simone Tiraboschi]

On Thu, Feb 1, 2018 at 1:06 PM, Pym <pym0914 at 163.com> wrote:

> The environment on my side may be different from the link. My VM1 can be
> used normally after it is started on host2, but there is still information
> left on host1 that is not cleaned up.
>
> Only the interface and background can still get the information of vm1 on
> host1, but the vm2 has been successfully started on host2, with the HA
> function.
>
> I would like to ask a question, whether the UUID of the virtual machine is
> stored in the database or where is it maintained? Is it not successfully
> deleted after using the HA function?
>
>
I just encounter a similar behavior:
after a reboot of the host 'vdsm-client Host getVMFullList' is still
reporting an old VM that is not visible with 'virsh -r list --all'.

I filed a bug to track it:
https://bugzilla.redhat.com/show_bug.cgi?id=1541479



>
>
>
>
>  2018-02-01 16:12:16，"Simone Tiraboschi" <stirabos at redhat.com> ：
>
>
>
> On Thu, Feb 1, 2018 at 2:21 AM, Pym <pym0914 at 163.com> wrote:
>
>>
>> I checked the vm1, he is keep up state, and can be used, but on host1 has
>> after shutdown is a suspended vm1, this cannot be used, this is the problem
>> now.
>>
>> In host1, you can get the information of vm1 using the "vdsm-client Host
>> getVMList", but you can't get the vm1 information using the "virsh list".
>>
>>
> Maybe a side effect of https://bugzilla.redhat.com/show_bug.cgi?id=1505399
>
>
> Arik?
>
>
>
>>
>>
>>
>>  2018-02-01 07:16:37，"Simone Tiraboschi" <stirabos at redhat.com> ：
>>
>>
>>
>> On Wed, Jan 31, 2018 at 12:46 PM, Pym <pym0914 at 163.com> wrote:
>>
>>> Hi:
>>>
>>> The current environment is as follows:
>>>
>>> Ovirt-engine version 4.2.0 is the source code compilation and
>>> installation. Add two hosts, host1 and host2, respectively. At host1, a
>>> virtual machine is created on vm1, and a vm2 is created on host2 and HA is
>>> configured.
>>>
>>> Operation steps:
>>>
>>> Use the shutdown -r command on host1. Vm1 successfully migrated to host2.
>>> When host1 is restarted, the following situation occurs:
>>>
>>> The state of the vm2 will be shown in two images, switching from up and
>>> pause.
>>>
>>> When I perform the "vdsm-client Host getVMList" in host1, I will get the
>>> information of vm1. When I execute the "vdsm-client Host getVMList" in
>>> host2, I will get the information of vm1 and vm2.
>>> When I do "virsh list" in host1, there is no virtual machine
>>> information. When I execute "virsh list" at host2, I will get information
>>> of vm1 and vm2.
>>>
>>> How to solve this problem?
>>>
>>> Is it the case that vm1 did not remove the information on host1 during
>>> the migration, or any other reason?
>>>
>>
>> Did you also check if your vms always remained up?
>> In 4.2 we have libvirt-guests service on the hosts which tries to
>> properly shutdown the running VMs on host shutdown.
>>
>>
>>>
>>> Thank you.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at ovirt.org
>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>>
>>
>>
>>
>>
>
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