Hi, Martin, thanks a lot, now I successfully upgraded Engine to latest 4.5, yet old nodes 4.2 / CentOS 7.6 still working fine. Now I can move VMs and upgrade old nodes.
> On 29 Aug 2022, at 17:27, Martin Perina <mper...@redhat.com> wrote: > > Hi, > > you are mixing 2 unrelated versioning parts: > > 1. Supported cluster levels > - oVirt Engine 4.5 supports cluster level 4.2 - 4.7 > > https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/compat/src/main/java/org/ovirt/engine/core/compat/Version.java#L22 > > <https://github.com/oVirt/ovirt-engine/blob/master/backend/manager/modules/compat/src/main/java/org/ovirt/engine/core/compat/Version.java#L22> > - This means that both EL7 based (4.2 and 4.3) and EL8 based (4.4-4.7) > hosts can be successfully managed by oVirtEngine 4.5 > > 2. OS requirements of oVirt Engine 4.5 > - oVirt Engine 4.5 is supported only on EL 8.6+ and CS8 stream > - This means that: > - for standalone engine you need to have a machine with EL8.6 or CS8 > - for hosted engine you need to have a cluster with EL8.6 or CS8 > hosts, where hosted engine VM based on E8.6 or CS8 can run > > So specifically for your use case you need: > > 1. Standalone engine 4.5 running on EL8.6 or CS8, which can manage 4.2 hosts > in 4.2 cluster > 2. Hosted engine 4.5 running on cluster of EL8.6 or CS8 hosts with additional > (different) 4.2 cluster, where your 4.2 hosts reside > > Regards, > Martin > > > On Mon, Aug 29, 2022 at 2:43 PM Jirka Simon <ji...@vesim.cz > <mailto:ji...@vesim.cz>> wrote: > Hi Andrei, > > ovirt 4.4+ has to run with centos/ rhel 8, I would not recommend mix > versions of ovirt node version within one cluster. (there couldbe / will > be a problem with vdsm version on each node) > > And yes cluster compatibility version number doesn't match ovirt version. > > I would recommend to try to remove the oldest node from the cluster (if > upu have some spare nodes) and try to reinstall it to centos 8 or 9 with > standalone engine for test if it works or not. > > Jirka > > On 8/29/22 14:26, Andrei Verovski wrote: > > Hi, > > > > My oldest nodes are version 4.2 on CentOS 7.6. > > What is the latest cluster compatibility level they support? > > Looks like oVirt Engine version and cluster compatibility level do not > > match number to number, e.g. my oVirt engine 4.4.10 seems can set cluster > > compatibility level up to 4.6. > > > > Someone from Red Hat, please clarify. > > Thanks in advance. > > > > > >> On 29 Aug 2022, at 15:09, Jirka Simon <ji...@vesim.cz > >> <mailto:ji...@vesim.cz>> wrote: > >> > >> Hi Andrei, > >> > >> as I know, you need to have to have your cluster with at least 4.3 > >> version to migrate to 4.5. I was facing the same problem with (not so) > >> old hardware. and i started to do step by step migration. > >> > >> it means i created new cluster with fresh configuration with ovirt 4.5 > >> and cluster compatibility version 4.7 next to old one with 4.4. Iit is a > >> good opportunity to prepare whole cluster configuration in ansible for me > >> :D > >> > >> Then I migrate VMs one by one from old cluster to the new one. When is one > >> node free on old cluster I reinstall it and add to new cluster. > >> > >> Maybe it is not the fastest solution, but i can arrange maintenance for > >> each VM. > >> > >> Jirka > >> > >> On 8/29/22 10:13, Andrei Verovski wrote: > >>> Hi, > >>> > >>> I have cluster compatibility version 4.2, due to some old nodes. > >>> From what I remember in oVirt 4.5 release notes (correct please, may be > >>> wrong here), oVirt engine 4.5 requires cluster compatibility version >= > >>> 4.3. > >>> Please clarify. Thanks. > >>> > >>> > >>>>> On 28. 8. 2022, at 18:52, Andrei Verovski <andre...@starlett.lv > >>>>> <mailto:andre...@starlett.lv>> wrote: > >>>>> > >>>>> Hi, > >>>>> > >>>>> I have engine version 4.4.10.7-1.el8, is it possible to set up new node > >>>>> host on CentOS Stream 9, or I need to upgrade engine to version 4.5 > >>>>> first (which is not right now possible because of some quite old nodes) > >>>>> ? > >>>> yes, you generally need the latest version > >>>> You can keep your old nodes old, 4.2 based nodes are still working with > >>>> 4.5 > >>>> > >>>>> Thanks > >>>>> Andrei > >>>>> _______________________________________________ > >>>>> Users mailing list -- users@ovirt.org <mailto:users@ovirt.org> > >>>>> To unsubscribe send an email to users-le...@ovirt.org > >>>>> <mailto:users-le...@ovirt.org> > >>>>> Privacy Statement: https://www.ovirt.org/privacy-policy.html > >>>>> <https://www.ovirt.org/privacy-policy.html> > >>>>> oVirt Code of Conduct: > >>>>> https://www.ovirt.org/community/about/community-guidelines/ > >>>>> <https://www.ovirt.org/community/about/community-guidelines/> > >>>>> List Archives: > >>>>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/IC3ZW2XY7BAEAU3H72P4VA76Y63F32XU/ > >>>>> > >>>>> <https://lists.ovirt.org/archives/list/users@ovirt.org/message/IC3ZW2XY7BAEAU3H72P4VA76Y63F32XU/> > >>> _______________________________________________ > >>> Users mailing list -- users@ovirt.org <mailto:users@ovirt.org> > >>> To unsubscribe send an email to users-le...@ovirt.org > >>> <mailto:users-le...@ovirt.org> > >>> Privacy Statement: https://www.ovirt.org/privacy-policy.html > >>> <https://www.ovirt.org/privacy-policy.html> > >>> oVirt Code of Conduct: > >>> https://www.ovirt.org/community/about/community-guidelines/ > >>> <https://www.ovirt.org/community/about/community-guidelines/> > >>> List Archives: > >>> https://lists.ovirt.org/archives/list/users@ovirt.org/message/SZCOBNKBBSFUPNDWOIXRLVZ5OOJXHA7D/ > >>> > >>> <https://lists.ovirt.org/archives/list/users@ovirt.org/message/SZCOBNKBBSFUPNDWOIXRLVZ5OOJXHA7D/> > > _______________________________________________ > > Users mailing list -- users@ovirt.org <mailto:users@ovirt.org> > > To unsubscribe send an email to users-le...@ovirt.org > > <mailto:users-le...@ovirt.org> > > Privacy Statement: https://www.ovirt.org/privacy-policy.html > > <https://www.ovirt.org/privacy-policy.html> > > oVirt Code of Conduct: > > https://www.ovirt.org/community/about/community-guidelines/ > > <https://www.ovirt.org/community/about/community-guidelines/> > > List Archives: > > https://lists.ovirt.org/archives/list/users@ovirt.org/message/C643UFIPQVG5MSFAR7PWYSHP4XUEZADR/ > > > > <https://lists.ovirt.org/archives/list/users@ovirt.org/message/C643UFIPQVG5MSFAR7PWYSHP4XUEZADR/> > _______________________________________________ > Users mailing list -- users@ovirt.org <mailto:users@ovirt.org> > To unsubscribe send an email to users-le...@ovirt.org > <mailto:users-le...@ovirt.org> > Privacy Statement: https://www.ovirt.org/privacy-policy.html > <https://www.ovirt.org/privacy-policy.html> > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > <https://www.ovirt.org/community/about/community-guidelines/> > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/ASMNUVQLVUQI6QEMNGZST43ERBU3LBVY/ > > <https://lists.ovirt.org/archives/list/users@ovirt.org/message/ASMNUVQLVUQI6QEMNGZST43ERBU3LBVY/> > > > -- > Martin Perina > Manager, Software Engineering > Red Hat Czech s.r.o.
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