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

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Am Mo., 3. Dez. 2018 um 11:56 Uhr schrieb Jan Kasprzak <k...@fi.muni.cz>:
>
>         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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