On Fri, Dec 18, 2015 at 2:26 PM, Sandro Bonazzola <sbonazzo@redhat.com> wrote:
You can't put the only existing host in maintenance since Hosted Engine is running on it and it can't migrate
Or should I simply - shutdown the VMs in my Datacenter - shutdown engine VM - stop vdsmd on host - update host to both CentOS 7.2 and oVirt 3.6.1 packages with: # yum update - reboot host - verify vdsmd is ok - exit the global maintenance mode and wait for a few minutes the engine VM should on this fresh upgraded host - hopefully the host will come up again as active and I can start my VMs ?
- shutdown the VMs in your Datacenter - move the host to local maintenance - shutdown engine VM - yum update - reboot - exit maintenance
After solving the engine VM part (see dedicated thread) I continued and follow the steps indicated for the host. After reboot and exiting maintenance I found the hosted_storage domain in state "unattached" and not "maintenance" as in another test I have done (note that in in that test there were not true data domains configured apart the hosted_storage...) I also got some exceptions inside the GUI when going into storage tab on hosted_storage line. See: https://drive.google.com/file/d/0BwoPbcrMv8mvYmdQYVM0dkRJaGM/view?usp=sharin... Uncaught exception occurred. Please try reloading the page. Details: (TypeError) __gwt$exception: <skipped>: c is null I tried to attach the hosted_storage but then the engine VM went down I did wait for about 10 minutes and the VM was not restarted. Is there any reason for ithe environment to "automatically" go back into maintenance? Because as soon as I run again the command hosted-engine --set-maintenance --mode=none the engine VM was started again..... Is there any command to see the current state of maintenance (none/local/global)? Anyway the hosted_storage domain still is in unattached state... BTW: even if the host has been updated: [root@ractor ]# yum update Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: ba.mirror.garr.it * extras: ba.mirror.garr.it * ovirt-3.6: ftp.nluug.nl * ovirt-3.6-epel: epel.besthosting.ua * updates: ba.mirror.garr.it No packages marked for update [root@ractor ]# Inside the webadmin gui in hosts tab I still see the icon indicating "update available" for it And in action items: "a new version is available" message In software subtab the host is detected as: OS Version: RHEL - 7 - 2.1511.el7.centos.2.10 Kernel Version: 3.10.0 - 327.3.1.el7.x86_64 KVM Version: 2.3.0 - 31.el7_2.4.1 LIBVIRT Version: libvirt-1.2.17-13.el7_2.2 VDSM Version: vdsm-4.17.13-0.el7.centos SPICE Version: 0.12.4 - 15.el7 CEPH Version: librbd1-0.80.7-3.el7