Created attachment 1156676 [details] engine.log Description of problem: Hi, I have a very strange issue since oVirt was updated to 3.6.5. When I start VMs with a specific VM name (auto-generated), oVirt returns the following error : "Exit message: Invalid machine name" Version-Release number of selected component (if applicable): oVirt 3.6.5 How reproducible: For eg, create a VM with these names fails (from API or from web interface): kitchen-fermewebovirt-role-webserver-jessie-c_1463043674.809774 kitchen-fermewebovirt-role-webserver-jessie-c_146304367.4809774 kitchen-fermewebovirt-role-webserver-jessie-c_14630436.74809774 kitchen-fermewebovirt-role-webserver-jessie-_1463043674.809774 kitchen-fermewebovirt-role-webserver-jessie-_14630436.74809774 But, these hostnames work: kitchen-fermewebovirt-role-webserver-jessie-c_1463043.674809774 kitchen-fermewebovirt-role-webserver-jessie-c_1463043674809.774 kitchen-fermewebovirt-role-webserver-jessie-c_146304367480977.4 kitchen-fermewebovirt-role-webserver-jessie-_1463043.674809774 kitchen-fermewebovirt-role-webserver-jessie_1463043674.809774 kitchen-fermewebovirt-role-webserver-c_1463043674.809774 So strange...
related to bug 1291360. Please verify you have 1.2.17-13.el7_2.4 on hosts There are more bugs which are still in progress, e.g. bug 1289363. I wouldn't use anything longer than 59 chars until things settle down. If you find an issue with 60-64 chars it may be that not-yet-fixed libvirt problem, please feel free to follow up there to see it's the same issue or not
(In reply to Michal Skrivanek from comment #1) > related to bug 1291360. Please verify you have 1.2.17-13.el7_2.4 on hosts > Yes, it is the version I have: libvirt-daemon-kvm-1.2.17-13.el7_2.4.x86_64
then please check if 59 chars long names work and if you have a testing setup you can also try if libvirt 1.3.4 would help(you may need to compile it yourself though, so not simple to try)
(In reply to Michal Skrivanek from comment #3) > then please check if 59 chars long names work and if you have a testing > setup you can also try if libvirt 1.3.4 would help(you may need to compile > it yourself though, so not simple to try) Yes, I am not able to reproduce the issue when length <= 59 chars. I will reduce hostname length during generation into library I use (vagrant-ovirt3). Thanks for your help.
*** This bug has been marked as a duplicate of bug 1289363 ***