[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.

Thu Feb 8 08:41:21 UTC 2018

Hi Pym,

the feature is know in testing. I am not sure when it will be released, but
I hope for sooner date.

Petr

On Tue, Feb 6, 2018 at 12:36 PM, Pym <pym0914 at 163.com> wrote:

> Thank you very much for your help, so is this patch released now? Where
> can I get this patch?
>
>
>
>
>
>
> At 2018-02-05 20:52:04, "Petr Kotas" <pkotas at redhat.com> wrote:
>
> Hi,
>
> I have experimented on the issue and figured out the reason for the
> original issue.
>
> You are right, that the vm1 is not properly stopped. This is due to the
> known issue in the graceful shutdown introduced in the ovirt 4.2.
> The vm on the host in shutdown are killed, but are not marked as stopped.
> This results in the behavior you have observed.
>
> Luckily, the patch is already done and present in the latest ovirt.
> However, be ware that gracefully shutting down the host, will result in
> graceful shutdown of
> the VMs. This result in engine not migrating them, since they have been
> terminated gracefully.
>
> Hope this helps.
>
> Best,
> Petr
>
>
> On Fri, Feb 2, 2018 at 6:00 PM, Simone Tiraboschi <stirabos at redhat.com>
> wrote:
>
>>
>>
>> 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
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20180208/45ab9871/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 35900 bytes
Desc: not available
URL: <http://lists.ovirt.org/pipermail/users/attachments/20180208/45ab9871/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 34515 bytes
Desc: not available
URL: <http://lists.ovirt.org/pipermail/users/attachments/20180208/45ab9871/attachment-0001.png>