I see the following in the source VDSM log :

2017-02-21 05:53:28,067 INFO (migsrc/8733d4a6) [virt.vm] (vmId='8733d4a6-0844-4955-804f-6b919e93e076') starting migration to qemu+tls://ovirt-node02.mgmt.lan.company.lan/system with miguri tcp://172.16.4.19 (migration:453)
2017-02-21 05:53:28,262 ERROR (migsrc/8733d4a6) [virt.vm] (vmId='8733d4a6-0844-4955-804f-6b919e93e076') operation failed: domain 'DATA_p' is already defined with uuid 8733d4a6-0844-4955-804f-6b919e93e076 (migration:265)

libvirtError: operation failed: domain 'DATA_p' is already defined with uuid 8733d4a6-0844-4955-804f-6b919e93e076

Can you check on host 2 if you have any VM already running there ?

You can use :virsh list

On Tue, Feb 21, 2017 at 2:15 PM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:

Hi All,

I’m having issues with migrating a VM. I have a 3 Host cluster and the VM is able to migrate between host 1 and 3, but not to host 2. I don’t know why and I tried figuring this out with the log files and had no luck. All other VMs migrate to the host 2 without any issues.

If you have some advice for me that would help a lot.

Thank you,

Sven

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