I assume upgrading cluster running in docker / podman containers should be non issue is it? Just making sure. Also wonder if anything is different in this case from normal container upgrade scenario I.e. monitors -> mgrs -> osds -> mdss -> clients. Thank you, On Wed, Mar 25, 2020, 5:32 AM Wido den Hollander <wido@xxxxxxxx> wrote: > > > On 3/25/20 10:24 AM, Simon Oosthoek wrote: > > On 25/03/2020 10:10, konstantin.ilyasov@xxxxxxxxxxxxxx wrote: > >> That is why i am asking that question about upgrade instruction. > >> I really don`t understand, how to upgrade/reinstall CentOS 7 to 8 > without affecting the work of cluster. > >> As i know, this process is easier on Debian, but we deployed our > cluster Nautilus on CentOS because there weren`t any packages for 14.x for > Debian Stretch (9) or Buster(10). > >> P.s.: if this is even possible, i would like to know how to upgrade > servers with CentOs7 + ceph 14.2.8 to Debian 10 with ceph 15.2.0 (we have > servers with OSD only and 3 servers with Mon/Mgr/Mds) > >> _______________________________________________ > >> ceph-users mailing list -- ceph-users@xxxxxxx > >> To unsubscribe send an email to ceph-users-leave@xxxxxxx > >> > > > > I guess you could upgrade each node one by one. So upgrade/reinstall the > > OS, install Ceph 15 and re-initialise the OSDs if necessary. Though it > > would be nice if there was a way to re-integrate the OSDs from the > > previous installation... > > > > That works just fine. You can re-install the host OS and have > ceph-volume scan all the volumes. The OSDs should then just come back. > > Or you can take the even safer route by removing OSDs completely from > the cluster and wiping a box. > > Did this recently with a customer. In the meantime they took the > oppertunity to also flash the firmware of all the components and the > machines came back again with a complete fresh installation. > > > Personally, I'm planning to wait for a while to upgrade to Ceph 15, not > > in the least because it's not convenient to do stuff like OS upgrades > > from home ;-) > > > > Currently we're running ubuntu 18.04 on the ceph nodes, I'd like to > > upgrade to ubuntu 20.04 and then to ceph 15. > > > > I think many people will do this. I wouldn't run 15.2.0 on my production > environment right away. > > Wido > > > Cheers > > > > /Simon > > _______________________________________________ > > ceph-users mailing list -- ceph-users@xxxxxxx > > To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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