On 26-03-15 11:52, Stefan Priebe - Profihost AG wrote: > Hi, > > in the past i rwad pretty often that it's not a good idea to run ceph > and qemu / the hypervisors on the same nodes. > > But why is this a bad idea? You save space and can better use the > ressources you have in the nodes anyway. >
Memory pressure during recovery *might* become a problem. If you make sure that you don't allocate more then let's say 50% for the guests it could work. Using cgroups you could also prevent that the OSDs eat up all memory or CPU. So technically it could work, but memorey and CPU pressure is something which might give you problems. > Stefan > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Wido den Hollander 42on B.V. Phone: +31 (0)20 700 9902 Skype: contact42on _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
