Den mån 25 feb. 2019 kl 13:40 skrev Eugen Block <eblock@xxxxxx>: > I just moved a (virtual lab) cluster to a different network, it worked > like a charm. > In an offline method - you need to: > > - set osd noout, ensure there are no OSDs up > - Change the MONs IP, See the bottom of [1] "CHANGING A MONITOR’S IP > ADDRESS", MONs are the only ones really > sticky with the IP > - Ensure ceph.conf has the new MON IPs and network IPs > - Start MONs with new monmap, then start OSDs > > > No, certain ips will be visible in the databases, and those will not change. > I'm not sure where old IPs will be still visible, could you clarify > that, please? Well, I've just reacted to all the text at the beginning of http://docs.ceph.com/docs/luminous/rados/operations/add-or-rm-mons/#changing-a-monitor-s-ip-address-the-messy-way including the title "the messy way". If the cluster is clean I see no reason for doing brain surgery on monmaps just to "save" a few minutes of redoing correctly from scratch. What if you miss some part, some command gives you an error you really aren't comfortable with, something doesn't really feel right after doing it, then the whole lifetime of that cluster will be followed by a small nagging feeling that it might have been that time you followed a guide that tries to talk you out of doing it that way, for a cluster with no data. I think that is the wrong way to learn how to run clusters. -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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