[one-users] OVS vnet tag dissapears after snapshot revert with

[Jaime Melis]

Hi Rogier,

bug confirmed. I have just created http://dev.opennebula.org/issues/2267 in
order to fix it.

cheers,
Jaime


On Thu, Aug 8, 2013 at 9:33 PM, Rogier Mars <rogier at fortytwo.nl> wrote:

> Hi,
>
> Can anyone confirm this issue? Could it be a KVM or Libvirt bug? I don't
> see any opennebula code that does anything during a snapshot?
>
> Anyone ever had a simular problem?
>
> Cheers,
>
> Rogier
>
> On Jul 31, 2013, at 11:30 PM, Rogier Mars wrote:
>
> Hi,
>
> I've just upgraded from ONE-4.0 to ONE-4.2 and am testing some
> functionality now. I have ONE running with OpenVSwitch.
>
> When I create a snapshot from a VM that is running with a QCOW2 image file
> and I revert that snapshot, the vnet interface for that VM in opennebula
> misses the vlan-tag that puts the traffic in the correct vlan. When I
> manually set the tag for the vnet interface again (ovs-vsctl set port vnet1
> tag=206) , the vm works fine again. See the before and after the "revert
> snapshot" details below. The vnet1 interface is the interface connected to
> the VM that I reverted the snapshot on.
>
> When I create a new VM the vnet tag is configured correctly. It seems this
> only happens after reverting a snapshot.
>
> Does anyone experienced this before? I'm not sure this problem existed in
> previous version as well, I've never really used the snapshots before.
>
> Kind regards,
>
> Rogier
>
> BEFORE REVERT SNAPSHOT (working network)
> [root at cloud4 206]# ovs-vsctl show
> 292bcb85-e245-4e6b-8e53-c520faf2e6c6
>     Bridge "ovsbr0"
>         Port "bond0"
>             Interface "eth1"
>             Interface "eth0"
>         Port "vnet0"
>             tag: 206
>             Interface "vnet0"
> *        Port "vnet1"*
> *            tag: 206*
> *            Interface "vnet1"*
>         Port "br206"
>             tag: 206
>             Interface "br206"
>                 type: internal
>         Port "ovsbr0"
>             Interface "ovsbr0"
>                 type: internal
>     ovs_version: "1.10.0"
> [root at cloud4 206]#
>
> AFTER REVERT SNAPSHOT (network inaccessible)
> [root at cloud4 206]# ovs-vsctl show
> 292bcb85-e245-4e6b-8e53-c520faf2e6c6
>     Bridge "ovsbr0"
>         Port "bond0"
>             Interface "eth1"
>             Interface "eth0"
>         Port "vnet0"
>             tag: 206
>             Interface "vnet0"
>         Port "br206"
>             tag: 206
>             Interface "br206"
>                 type: internal
> *        Port "vnet1"*
> *            Interface "vnet1"*
>         Port "ovsbr0"
>             Interface "ovsbr0"
>                 type: internal
>     ovs_version: "1.10.0"
> [root at cloud4 206]#
>
>
>
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>


-- 
Join us at OpenNebulaConf2013 <http://opennebulaconf.com/> in Berlin, 24-26
September, 2013
--
Jaime Melis
Project Engineer
OpenNebula - The Open Source Toolkit for Cloud Computing
www.OpenNebula.org | jmelis at opennebula.org
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