Once you've created a crush map you need to edit it directly (either by dumping it from the cluster, editing with the crush tool, and importing; or via the ceph cli commands), rather than by updating config settings. I believe doing so is explained in the ceph docs.
On Fri, Feb 2, 2018 at 4:47 AM Flemming Frandsen < flemming.frand...@stibosystems.com> wrote: > Hi, I'm just starting to play around with Ceph, so please excuse my > complete lack of a clue if this question is covered somewhere, but I > have been unable to find an answer. > > > I have a single machine running Ceph which was set up with osd crush > chooseleaf type = 0 in /etc/ceph/ceph.conf, now I've added a new machine > with some new OSDs, so I'd like to change to osd crush chooseleaf type = > 1 and have Ceph re-balance the replicas. > > How do I do that? > > Preferably I'd like to make the change without making the cluster > unavailable. > > > So far I've edited the config file and tried restarting daemons, > including rebooting the entire OS, but I still see PGs that live only on > one host. > > I've read the config docuemntation page but it doesn't mention what to > do to make that specific config change take effect: > > http://docs.ceph.com/docs/master/rados/configuration/ceph-conf/ > > I've barked up the crushmap tree a bit, but I did not see how "osd crush > chooseleaf type" relates to that in any way. > > > -- > Regards Flemming Frandsen - Stibo Systems - DK - STEP Release Manager > Please use rele...@stibo.com for all Release Management requests > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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