"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
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