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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This mail is regarding the required model change in nova. Please fine more details below:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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.<o:p></o:p></p>
<p class="MsoNormal">This value is having significant value in os-hypervisor extension api which is using this field to uniquely identify the hypervisor.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">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
<b>Horizon Hypervisor panel</b> and <b>nova hypervisors-servers command </b>will fail.
<o:p></o:p></p>
<p class="MsoNormal">There is a defect (<a href="https://bugs.launchpad.net/nova/+bug/1329261">https://bugs.launchpad.net/nova/+bug/1329261</a>) 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
<a href="https://bugs.launchpad.net/nova/+bug/1329299">https://bugs.launchpad.net/nova/+bug/1329299</a> is filed for the same.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Before fixing this bug, I would like to get the opinion from the community. Could you please help here !<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards<o:p></o:p></p>
<p class="MsoNormal">Kanagaraj M<o:p></o:p></p>
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