As other's have said, best bet is update conf and then just use injectargs,
but if you need to restart a group of OSD's you could script it. Assuming
you are using linux, you could do something like.
//If you wanted to restart osd 1-10
for i in (1..10);
do
HOST=`ceph osd find ${i} | jq -r .crush_location.host`
ssh ${HOST} sudo stop ceph-osd id=${i};
sleep 5;
ssh ${HOST} sudo start ceph-osd id=${i};
sleep 10;
done
This isn't something I've ever had to do and others have pointed out the
issues with restarting a cluster all at once, but that's how you could do
it. You could also tweak it to pass the OSD's in and probably just make
the ssh one command of restart rather than stop/start.
On Fri, May 12, 2017 at 8:49 AM, Алексей Усов <[email protected]>
wrote:
> Greetings,
>
> Could someone, please, tell me how do I restart all daemons in a cluster
> if I make changes in ceph.conf, if it's needed indeed? Since
> enterprise-scale ceph clusters usually tend to comprise of hundreds of
> OSDs, I doubt one must restart the entire cluster by hand or use some sort
> of external orchestrating tool - there must be a centralized solution in
> ceph itself. Thank you in advance.
>
> --
> С уважением, Усов А.Е..
> Best Regards, Usov A.Y..
>
> _______________________________________________
> ceph-users mailing list
> [email protected]
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>
>
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