Mons do not communicate with the OSDs on the private subnet. Only OSDs are on the private subnet.
On Sat, May 20, 2017, 6:14 PM Ben Hines <[email protected]> wrote: > Ceph kraken or later can use SRV records to find the mon servers. It works > great and I've found it a bit easier to maintain than the static list in > ceph.conf. > > That would presumably be on the private subnet. > > > On May 20, 2017 7:40 AM, "David Turner" <[email protected]> wrote: > >> The private network is only used by OSD daemons. The mons, mds, rgw, and >> clients do not need access to this subnet. Ceph does not need DNS for >> anything. DNS is very helpful when managing your cluster, so it is helpful >> to configure it for the public network. As nothing talks to the private >> subnet, there is no benefit to configuring DNS for it. >> >> On Sat, May 20, 2017, 7:52 AM Anton Dmitriev <[email protected]> wrote: >> >>> What is the true way of configuring DNS records for ceph? >>> >>> public network = 10.17.12.0/24 >>> cluster network = 10.17.27.0/24 >>> >>> Storages have separate interfaces for public and cluster networks. >>> >>> In DNS servers I added records such as storage01 pointing to IPs in >>> public network. >>> >>> Do I need to add extra records which will point to cluster network? >>> >>> Do I need to add records to /etc/hosts file on storages to make storages >>> resolve each other to cluster network addresses? >>> >>> Or maybe I don`t need to care about cluster network and ceph will >>> determine cluster network addresses himself without asking DNS and >>> /etc/hosts? >>> >>> Do monitors interact with OSD using public network? >>> >>> Do I need to add cluster network to monitors? >>> >>> >>> -- >>> Dmitriev Anton >>> >>> _______________________________________________ >>> ceph-users mailing list >>> [email protected] >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >> >> _______________________________________________ >> ceph-users mailing list >> [email protected] >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> >>
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