Thx again - I really appreciatethe help guys ! On 4 March 2015 at 17:51, Robert LeBlanc <rob...@leblancnet.us> wrote:
> If the data have been replicated to new OSDs, it will be able to > function properly even them them down or only on the public network. > > On Wed, Mar 4, 2015 at 9:49 AM, Andrija Panic <andrija.pa...@gmail.com> > wrote: > > "I guess it doesnt matter, since my Crush Map will still refernce old > OSDs, > > that are stoped (and cluster resynced after that) ?" > > > > I wanted to say: it doesnt matter (I guess?) that my Crush map is still > > referencing old OSD nodes that are already stoped. Tired, sorry... > > > > On 4 March 2015 at 17:48, Andrija Panic <andrija.pa...@gmail.com> wrote: > >> > >> That was my thought, yes - I found this blog that confirms what you are > >> saying I guess: > >> > http://www.sebastien-han.fr/blog/2012/07/29/tip-ceph-public-slash-private-network-configuration/ > >> I will do that... Thx > >> > >> I guess it doesnt matter, since my Crush Map will still refernce old > OSDs, > >> that are stoped (and cluster resynced after that) ? > >> > >> Thx again for the help > >> > >> On 4 March 2015 at 17:44, Robert LeBlanc <rob...@leblancnet.us> wrote: > >>> > >>> If I remember right, someone has done this on a live cluster without > >>> any issues. I seem to remember that it had a fallback mechanism if the > >>> OSDs couldn't be reached on the cluster network to contact them on the > >>> public network. You could test it pretty easily without much impact. > >>> Take one OSD that has both networks and configure it and restart the > >>> process. If all the nodes (specifically the old ones with only one > >>> network) is able to connect to it, then you are good to go by > >>> restarting one OSD at a time. > >>> > >>> On Wed, Mar 4, 2015 at 4:17 AM, Andrija Panic <andrija.pa...@gmail.com > > > >>> wrote: > >>> > Hi, > >>> > > >>> > I'm having a live cluster with only public network (so no explicit > >>> > network > >>> > configuraion in the ceph.conf file) > >>> > > >>> > I'm wondering what is the procedure to implement dedicated > >>> > Replication/Private and Public network. > >>> > I've read the manual, know how to do it in ceph.conf, but I'm > wondering > >>> > since this is already running cluster - what should I do after I > change > >>> > ceph.conf on all nodes ? > >>> > Restarting OSDs one by one, or... ? Is there any downtime expected ? > - > >>> > for > >>> > the replication network to actually imlemented completely. > >>> > > >>> > > >>> > Another related quetion: > >>> > > >>> > Also, I'm demoting some old OSDs, on old servers, I will have them > all > >>> > stoped, but would like to implement replication network before > actually > >>> > removing old OSDs from crush map - since lot of data will be moved > >>> > arround. > >>> > > >>> > My old nodes/OSDs (that will be stoped before I implement replication > >>> > network) - do NOT have dedicated NIC for replication network, in > >>> > contrast to > >>> > new nodes/OSDs. So there will be still reference to these old OSD in > >>> > the > >>> > crush map. > >>> > Will this be a problem - me changing/implementing replication network > >>> > that > >>> > WILL work on new nodes/OSDs, but not on old ones since they don't > have > >>> > dedicated NIC ? I guess not since old OSDs are stoped anyway, but > would > >>> > like > >>> > opinion. > >>> > > >>> > Or perhaps i might remove OSD from crush map with prior seting of > >>> > nobackfill and norecover (so no rebalancing happens) and then > >>> > implement > >>> > replication netwotk? > >>> > > >>> > > >>> > Sorry for old post, but... > >>> > > >>> > Thanks, > >>> > -- > >>> > > >>> > Andrija Panić > >>> > > >>> > _______________________________________________ > >>> > ceph-users mailing list > >>> > ceph-users@lists.ceph.com > >>> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>> > > >> > >> > >> > >> > >> -- > >> > >> Andrija Panić > > > > > > > > > > -- > > > > Andrija Panić > -- Andrija Panić
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