Re: Upgrade to Luminous (mon+osd)

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It's not that simple.... see http://tracker.ceph.com/issues/21672

For the 12.2.8 to 12.2.10 upgrade it seems the selinux module was
updated -- so the rpms restart the ceph.target.
What's worse is that this seems to happen before all the new updated
files are in place.

Our 12.2.8 to 12.2.10 upgrade procedure is:

systemctl stop ceph.target
yum update
systemctl start ceph.target

-- Dan

On Mon, Dec 3, 2018 at 12:42 PM Paul Emmerich <paul.emmerich@xxxxxxxx> wrote:
>
> Upgrading Ceph packages does not restart the services -- exactly for
> this reason.
>
> This means there's something broken with your yum setup if the
> services are restarted when only installing the new version.
>
>
> Paul
>
> --
> Paul Emmerich
>
> Looking for help with your Ceph cluster? Contact us at https://croit.io
>
> croit GmbH
> Freseniusstr. 31h
> 81247 München
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> Tel: +49 89 1896585 90
>
> Am Mo., 3. Dez. 2018 um 11:56 Uhr schrieb Jan Kasprzak <kas@xxxxxxxxxx>:
> >
> >         Hello, ceph users,
> >
> > I have a small(-ish) Ceph cluster, where there are osds on each host,
> > and in addition to that, there are mons on the first three hosts.
> > Is it possible to upgrade the cluster to Luminous without service
> > interruption?
> >
> > I have tested that when I run "yum --enablerepo Ceph update" on a
> > mon host, the osds on that host remain down until all three mons
> > are upgraded to Luminous. Is it possible to upgrade ceph-mon only,
> > and keep ceph-osd running the old version (Jewel in my case) as long
> > as possible? It seems RPM dependencies forbid this, but with --nodeps
> > it could be done.
> >
> > Is there a supported way how to upgrade host running both mon and osd
> > to Luminous?
> >
> > Thanks,
> >
> > -Yenya
> >
> > --
> > | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> |
> > | http://www.fi.muni.cz/~kas/                         GPG: 4096R/A45477D5 |
> >  This is the world we live in: the way to deal with computers is to google
> >  the symptoms, and hope that you don't have to watch a video. --P. Zaitcev
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