Hi, This mail is regarding the required model change in nova. Please fine more details below:
As we knew, Nova db has the table "compute_nodes" for modelling the hypervisors and its using the "hypervisor_hostname" field to represent the hypervisor name. This value is having significant value in os-hypervisor extension api which is using this field to uniquely identify the hypervisor. Consider the case where a given environment is having more than one hypervisors (KVM, EXS, Xen, etc) with same hostname and os-hypervisor and thereby Horizon Hypervisor panel and nova hypervisors-servers command will fail. There is a defect (https://bugs.launchpad.net/nova/+bug/1329261) already filed on VMware VC driver to address this issue to make sure that, a unique value is generated for the VC driver's hypervisor. But its good to fix at the model level as well by making "hypervisor_hostname" field as unique always. And a bug https://bugs.launchpad.net/nova/+bug/1329299 is filed for the same. Before fixing this bug, I would like to get the opinion from the community. Could you please help here ! Regards Kanagaraj M
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