There's no added benefit - it just adds resiliency. On the other hand - more monitors means more likelihood that one of them will break, when that happens there will be a brief interruption to some (not only management) operations. If you decide to reduce the number of MONs then that is a PITA as it means recreating for example libvirt domains (mon addresses are pretty much hardcoded in there). Just keep at at 3 unless you have more than 3 datacenters.
Jan > On 19 Nov 2015, at 09:35, 席智勇 <xizhiyon...@163.com> wrote: > > > hi all: > > As the title, if I deploy more than three ceph-mon node, I can > tolerate more monitor node failture, what I wana know is, is there any other > benefit， for example, better for IOPS or latency? On the other hand, what the > disadvantage if it has？ > > best regards~ > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
