Open Stack

Thanks Gary, clear now. ;-)


2014-02-16 21:40 GMT+08:00 Gary Kotton <gkotton at vmware.com>:

> Hi,
> There are two issues here.
> The first is a bug fix that is in review:
> - https://review.openstack.org/#/c/69209/ (this is where they have the
> same configuration)
> The second is WIP:
> - https://review.openstack.org/#/c/69262/ (we need to restore)
> Thanks
> Gary
>
> From: Jay Lau <jay.lau.513 at gmail.com>
> Reply-To: "OpenStack Development Mailing List (not for usage questions)" <
> openstack-dev at lists.openstack.org>
> Date: Sunday, February 16, 2014 6:39 AM
> To: OpenStack Development Mailing List <openstack-dev at lists.openstack.org>
> Subject: [openstack-dev] [Nova][VMWare] VMwareVCDriver related to
> resize/cold migration
>
> Hey,
>
> I have one question related with OpenStack vmwareapi.VMwareVCDriver
> resize/cold migration.
>
> The following is my configuration:
>
>  DC
>     |
>     |----Cluster1
>     |          |
>     |          |----9.111.249.56
>     |
>     |----Cluster2
>                |
>                |----9.111.249.49
>
> *Scenario 1:*
> I started two nova computes manage the two clusters:
> 1) nova-compute1.conf
> cluster_name=Cluster1
>
> 2) nova-compute2.conf
> cluster_name=Cluster2
>
> 3) Start up two nova computes on host1 and host2 separately
> 4) Create one VM instance and the VM instance was booted on Cluster2 node
> 9.111.249.49
> | OS-EXT-SRV-ATTR:host                 | host2 |
> | OS-EXT-SRV-ATTR:hypervisor_hostname  |
> domain-c16(Cluster2)                                     |
> 5) Cold migrate the VM instance
> 6) After migration finished, the VM goes to VERIFY_RESIZE status, and
> "nova show" indicates that the VM now located on host1:Cluster1
> | OS-EXT-SRV-ATTR:host                 | host1 |
> | OS-EXT-SRV-ATTR:hypervisor_hostname  |
> domain-c12(Cluster1)                                     |
> 7) But from vSphere client, it indicates the the VM was still running on
> Cluster2
> 8) Try to confirm the resize, confirm will be failed. The root cause is
> that nova compute on host2 has no knowledge of domain-c12(Cluster1)
>
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 2810, in
> do_confirm_resize
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
> migration=migration)
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/compute/manager.py", line 2836, in
> _confirm_resize
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
> network_info)
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/virt/vmwareapi/driver.py", line 420,
> in confirm_migration
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
> _vmops = self._get_vmops_for_compute_node(instance['node'])
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/virt/vmwareapi/driver.py", line 523,
> in _get_vmops_for_compute_node
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
> resource = self._get_resource_for_node(nodename)
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp   File
> "/usr/lib/python2.6/site-packages/nova/virt/vmwareapi/driver.py", line 515,
> in _get_resource_for_node
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
> raise exception.NotFound(msg)
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
> NotFound: NV-3AB798A The resource domain-c12(Cluster1) does not exist
> 2014-02-16 07:10:17.166 12720 TRACE nova.openstack.common.rpc.amqp
>
>
> *Scenario 2:*
>
> 1) Started two nova computes manage the two clusters, but the two computes
> have same nova conf.
> 1) nova-compute1.conf
> cluster_name=Cluster1
> cluster_name=Cluster2
>
> 2) nova-compute2.conf
> cluster_name=Cluster1
> cluster_name=Cluster2
>
> 3) Then create and resize/cold migrate a VM, it can always succeed.
>
>
> *Questions:*
> For multi-cluster management, does vmware require all nova compute have
> same cluster configuration to make sure resize/cold migration can succeed?
>
> --
> Thanks,
>
> Jay
>
> _______________________________________________
> OpenStack-dev mailing list
> OpenStack-dev at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
>


-- 
Thanks,

Jay
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