<div dir="ltr"><div>Hi All,</div><div><br></div><div>Due to a hostname change, we ended up having a new hypervisor-id for one of our compute nodes. It was already running two instances and then, we didn't catch the updated hypervisor-id. This ended up with new instances spawning up with new hypervisor-id.</div><div><br></div><div>Now, the instances with older hypervisor-id are not seen in "virsh list", rebooting those instances keep them rebooting.</div><div><br></div><div>[root (admin)]# nova hypervisor-servers compute-90</div><div>+--------------------------------------+-------------------+---------------+---------------------+</div><div>| ID                                   | Name              | Hypervisor ID | Hypervisor Hostname | </div><div>+--------------------------------------+-------------------+---------------+---------------------+</div><div>| 9688dcef-2836-496f-8b70-099638b73096 | instance-00000712 | 40            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| f7373cd6-96a0-4643-9137-732ea5353e94 | instance-00000b74 | 40            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| c8926585-a260-45cd-b008-71df2124b364 | instance-00001270 | 92            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| a0aa3f5f-d49b-43a6-8465-e7865bb68d57 | instance-000018de | 92            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| d729f9f4-fcae-4abe-803c-e9474e533a3b | instance-000016e0 | 92            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| 30a6a05d-a170-4105-9987-07a875152907 | instance-000017e4 | 92            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| 6e0fa25b-569d-4e9e-b57d-4c182c1c23ea | instance-000018f8 | 92            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>| 5964f6cc-eec3-493a-81fe-7fb616c89a8f | instance-000018fa | 92            | <a href="http://compute-90.test.edu">compute-90.test.edu</a> |</div><div>+--------------------------------------+-------------------+---------------+---------------------+</div><div><br></div><div>[root@compute-90]# virsh list</div><div> Id    Name                           State</div><div>----------------------------------------------------</div><div> 112   instance-00001270              running</div><div> 207   instance-000018de              running</div><div> 178   instance-000016e0              running</div><div> 189   instance-000017e4              running</div><div> 325   instance-000018f8              running</div><div> 336   instance-000018fa              running</div><div><br></div><div>Instances not visible: instance-00000712 and instance-00000b74</div><div><br></div><div>Is there a way to recover from this step? I can delete the old services(nova service-delete <id>), but I am confused whether it will lead to loss of already running instances with old hypervisor-id? Is there a way I can update the state of those instances to use hypervisor-id as 92 instead of 40? Kindly do let me know if you have any suggestions.</div><div><br></div><div>Thanks.</div><div><br></div><div><div class="gmail_signature"><div dir="ltr"><b style="font-size:12.8px;color:rgb(136,136,136)"><font size="2">Rahul Sharma</font></b><br style="font-size:12.8px;color:rgb(136,136,136)"><font size="1" style="color:rgb(136,136,136)"><i>MS in Computer Science, 2016</i><br>College of Computer and Information Science, Northeastern University<br>Mobile:  801-706-7860<br>Email: <a href="mailto:rahulsharmaait@gmail.com" target="_blank">rahulsharmaait@gmail.com</a></font><br></div></div></div>
</div>