Re: v9.1.0 Infernalis release candidate released

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Hi and thanks at all for this good news, ;)

On 13/10/2015 23:01, Sage Weil wrote:

>    #. Fix the data ownership during the upgrade.  This is the preferred option,
>       but is more work.  The process for each host would be to:
> 
>       #. Upgrade the ceph package.  This creates the ceph user and group.  For
> 	 example::
> 
> 	   ceph-deploy install --stable infernalis HOST
> 
>       #. Stop the daemon(s).::
> 
> 	   service ceph stop           # fedora, centos, rhel, debian
> 	   stop ceph-all               # ubuntu
> 	   
>       #. Fix the ownership::
> 
> 	   chown -R ceph:ceph /var/lib/ceph
> 
>       #. Restart the daemon(s).::
> 
> 	   start ceph-all                # ubuntu
> 	   systemctl start ceph.target   # debian, centos, fedora, rhel

With this (preferred) option, if I understand well, I should
repeat these commands above host-by-host. Personally, my monitors
are hosted in the OSD servers (I have no dedicated monitor server).
So, with this option, I will have osd daemons upgraded before
monitor daemons. Is it a problem?

I ask the question because, during a migration to a new release,
it's generally recommended to upgrade _all_ the monitors before
to upgrade the first osd daemon.

-- 
François Lafont
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