Hi,
The servers have moved to the new datacenter and I got it online
following the instruction.
# ceph -s
cluster:
id: 7712ab7e-3c38-44b3-96d3-4e1de9da0ff6
health: HEALTH_OK
services:
mon: 3 daemons, quorum ceph-mon1,ceph-mon2,ceph-mon3
mgr: ceph-mon3(active), standbys: ceph-mon1, ceph-mon2
mds: cephfs-1/1/1 up {0=ceph-mds=up:active}, 1 up:standby
osd: 63 osds: 63 up, 63 in
data:
pools: 4 pools, 640 pgs
objects: 108.6 k objects, 379 GiB
usage: 1.3 TiB used, 228 TiB / 229 TiB avail
pgs: 640 active+clean
Thanks guys:)
Eugen Block <ebl...@nde.ag> 于2019年2月27日周三 上午2:45写道：
> Hi,
>
> > 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.
>
> with that I would agree. Careful planning and an installation
> following the docs should be first priority. But I would also
> encourage users to experiment with ceph before going into production.
> Dealing with failures and outages on a production cluster causes much
> more headache than on a test cluster. ;-)
>
> If the cluster is empty anyway, I would also rather reinstall it, it
> doesn't take that much time. I just wanted to point out that there is
> a way that worked for me, although that was only a test cluster.
>
> Regards,
> Eugen
>
>
> Zitat von Janne Johansson <icepic...@gmail.com>:
>
> > Den mån 25 feb. 2019 kl 13:40 skrev Eugen Block <ebl...@nde.ag>:
> >> 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.
>
>
>
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