[ovirt-users] Re: Involuntary emergency upgrade from 4.1 to 4.2

The saga has ended and all is well. When I stopped all of the active VM's, the storage domains came back to normal and came online. At that point I had to delete the VM's that had been running unmanaged on the hosts, then I could import all of the objects from he storage domain into the data center. the only thing I lost was a bitnami redmine VM that had been installed from an OVA. This was no major loss, since I backed it up at the beginning of this adventure. In retrospect, the biggest issues I had were: * being overly cautious because I didn't know which operations were destructive, and * finding the right actions in the GUI when I decided to take the plunge. Thank you all for your generous assistance.

Regards, David Johnson On Tue, Oct 30, 2018 at 10:29 PM David Johnson < djohnson(a)maxistechnology.com&gt; wrote: > Host 1 is now back in "normal" mode. It was stuck in preparing for > maintenance because the VM's were not fully under the control of the > cluster. Once I powered off the VM's it finished what it was doing, > rebooted, and is now properly part of the cluster. > > However, the main data domain is still in "Maintenance" state, and I > can't find any way to make it "Active". My ISO partition is also inactive, > with no visible way to make it "Active". > > Regards, > David Johnson > Director of Development, Maxis Technology > 844.696.2947 ext 702 (o) | 479.531.3590 (c) > djohnson(a)maxistechnology.com > > > [image: Maxis Techncology] <http://www.maxistechnology.com> > www.maxistechnology.com > > > *stay connected <http://www.linkedin.com/in/pojoguy>* > > > On Tue, Oct 30, 2018 at 4:22 PM David Johnson < > djohnson(a)maxistechnology.com&gt; wrote: > >> Hi everyone, and thank you again for all of your help. >> >> Here is the latest update in the never ending story. >> >> I worked through NFS woes on my san, configured a throwaway storage >> domain to bootstrap the system, and have reconnected the storage domains. >> >> The main data domain is in "Maintenance" state >> Host 1 is in "Preparing for Maintenance" state with SPM = "normal", >> Host 2 is in "Up" state with SPM = "SPM", >> >> I think the next step is to get host 1 either fully into or out of >> maintenance mode, and the storage domain out of maintenance mode. >> >> Regards, >> David Johnson >> Director of Development, Maxis Technology >> 844.696.2947 ext 702 (o) | 479.531.3590 (c) >> djohnson(a)maxistechnology.com >> >> >> [image: Maxis Techncology] <http://www.maxistechnology.com> >> www.maxistechnology.com >> >> >> *stay connected <http://www.linkedin.com/in/pojoguy>* >> >> >> On Mon, Oct 29, 2018 at 10:10 PM Nathan Lager <lagern(a)lafayette.edu&gt; >> wrote: >> >>> The cluster will need a default storage domain before you can import >>> your existing domain. That much I do remember. What's causing your error I >>> don't know. What sort of storage are you working with? >>> >>> On Mon, Oct 29, 2018, 6:04 PM David Johnson < >>> djohnson(a)maxistechnology.com&gt; wrote: >>> >>>> Thank you everyone for all of your help. Here is where things stand >>>> now: >>>> >>>> I gave up trying to recover from backup. I wasn't able to mount the >>>> OVA. Since this is a test rack, I looked at the amount of time I've sunk >>>> into it already (about the same as it took to build from scratch the first >>>> time around) and decided that it was worthwhile to risk starting from >>>> scratch rather than become an overnight bit bashing Ovirt guru. >>>> >>>> I installed the 4.2 controller, upgraded the hosts to 4.2, and then >>>> added the two hosts to the default data center. At this point, all of the >>>> running JVM's were visible to the controller, but the vm's do not appear to >>>> be managed by the controller. I can't migrate them from one host to the >>>> other, for example. >>>> >>>> As near as I can tell, the next crucial step is to import the >>>> existing storage domains. >>>> >>>> There is no visible way to import an existing storage domain to an >>>> uninitialized data center (uninitialized data centers are not available to >>>> the Import Domain button)), so I created a new share on the SAN for a >>>> bootstrap domain, and am unable to connect to it. The error message given >>>> by OVirt is "Error while executing action Add Storage Connection: >>>> Problem while trying to mount target", which is not really information. >>>> >>>> Is there a command line tool for importing the existing storage >>>> domains that will not choke on an uninitialized data center? >>>> >>>> Thank you in advance, >>>> >>>> On Mon, Oct 29, 2018 at 7:14 AM David Johnson < >>>> djohnson(a)maxistechnology.com&gt; wrote: >>>> >>>>> Thank you for your generous help. >>>>> >>>>> 4.1 wouldn't install because a number of dependencies were pointing >>>>> to dead links. It felt like over half, although I'm sure it was a more >>>>> limited subset. >>>>> >>>>> I will give these suggestions a try >>>>> >>>>> >>>>> On Mon, Oct 29, 2018, 4:50 AM Yedidyah Bar David <didi(a)redhat.com&gt; >>>>> wrote: >>>>> >>>>>> On Mon, Oct 29, 2018 at 10:00 AM Simone Tiraboschi < >>>>>> stirabos(a)redhat.com&gt; wrote: >>>>>> > >>>>>> > Hi, >>>>>> > AFAIK https://resources.ovirt.org/pub/ovirt-4.1/ is still there, >>>>>> maybe you could find some issues with other repos. >>>>>> > >>>>>> > If you want to take a shortcut, >>>>>> https://resources.ovirt.org/pub/ovirt-4.1/rpm/el7/noarch/ovirt-engine-app... >>>>>> contains latest 4.1 based engine appliance. >>>>>> > You can extract the OVA file from there and use it to boot a >>>>>> temporary VM with virt-install and then upgrade the engine there to 4.2 in >>>>>> order to take a new 4.2 based backup that your can restore where you prefer >>>>>> with up to date rpms. >>>>>> > >>>>>> > >>>>>> > On Mon, Oct 29, 2018 at 8:49 AM <djohnson(a)maxistechnology.com&gt; >>>>>> wrote: >>>>>> >> >>>>>> >> I'm looking for a hand in recovering my ovirt cluster from a >>>>>> hardware failure. The hard drive on my cluster controller failed, and I >>>>>> would like to recover from backup. >>>>>> >> >>>>>> >> The problem is, the cluster was 4.1, which is less than a year >>>>>> old, but was nevertheless removed from the active repositories back in May. >>>>>> 4.2 will not recover from 4.1 backups. >>>>>> >>>>>> If you are brave, you can also "cheat" - patch engine-backup to allow >>>>>> recovering 4.1. That's a trivial patch, and the main problem with it >>>>>> is that no-one tested it, and I do expect it might introduce subtle >>>>>> issues. But considering the alternatives, it might be a reasonable >>>>>> approach. If you do, try restoring first on an _isolated_ VM >>>>>> somewhere, >>>>>> try to see how the engine behaves after restore (it will not work >>>>>> very well, because it will not manage to access its hosts - if you >>>>>> indeed isolated it well enough), and if it looks ok, try for real. >>>>>> >>>>>> See also e.g.: >>>>>> >>>>>> https://lists.ovirt.org/pipermail/users/2017-March/080346.html >>>>>> >>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1425788 >>>>>> >>>>>> That said, not sure why 4.1 does not work for you. I think it should >>>>>> still work, although I didn't try by myself recently. >>>>>> >>>>>> Good luck and best regards, >>>>>> >>>>>> >> >>>>>> >> The storage domains are all intact (I think), and the hosts are >>>>>> still running (unmanaged). I've tried to manually restore the engine from >>>>>> backups, but either the upgrade is reinitializing or I am missing something. >>>>>> >> >>>>>> >> Any ideas? >>>>>> >> _______________________________________________ >>>>>> >> Users mailing list -- users(a)ovirt.org >>>>>> >> To unsubscribe send an email to users-leave(a)ovirt.org >>>>>> >> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>>>>> >> oVirt Code of Conduct: >>>>>> https://www.ovirt.org/community/about/community-guidelines/ >>>>>> >> List Archives: >>>>>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/HRIUSVMGGCI... >>>>>> > >>>>>> > _______________________________________________ >>>>>> > Users mailing list -- users(a)ovirt.org >>>>>> > To unsubscribe send an email to users-leave(a)ovirt.org >>>>>> > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>>>>> > oVirt Code of Conduct: >>>>>> https://www.ovirt.org/community/about/community-guidelines/ >>>>>> > List Archives: >>>>>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/3OIB2WQSMHV... >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Didi >>>>>> >>>>> _______________________________________________ >>>> Users mailing list -- users(a)ovirt.org >>>> To unsubscribe send an email to users-leave(a)ovirt.org >>>> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >>>> oVirt Code of Conduct: >>>> https://www.ovirt.org/community/about/community-guidelines/ >>>> List Archives: >>>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/CN4Y3CC6XKR... >>>> >>> _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/76YBSLTDI73...