<[email protected]> wrote on 07/21/2016 10:13:58 PM:

> From: <[email protected]>
> To: "openstack-dev" <[email protected]>
> Date: 07/21/2016 10:16 PM
> Subject: [openstack-dev] [Neutron][Nova][OVN] Is there anythig we 
> should consider about VM migration in OVN
> 
> Hi all 
> 
> There is a patch[1]  add ability to OVN to update port status in 
> Neutron DB when creating VM.

Patch [1] was for the OVN core plugin.  networking-ovn now uses an ML2
driver.  Does the VM live migration problem that you are describing
impact the latest code as well?  If so, please file a bug [3] with
the details.

[3] https://bugs.launchpad.net/networking-ovn/+filebug

Richard

> 
> In this patch,  it will call method in ml2 mech_driver to change 
> port status in Neutron DB,  which invoked by ovsdb monitor. 
> 
> But in vm live migration scenario, it should not update port status 
> at first stage(pre_live_migraion)  in destination host, as there in 
> no binding host in port bind profile now.  And later in the last 
> stage(post_live_migration)[2] it should  update port status to ACTIVE. 
> 
> So if we should consider the vm live migration as described 
> previously, and is there anything else we should  consider about vm 
> migration in OVN?
> 
> Thank
> Jingting
> 
> [1] https://review.openstack.org/#/c/178826/
> [2] http://paste.openstack.org/show/198298/
> 
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