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?
Regards,
Eugen
[1] http://docs.ceph.com/docs/luminous/rados/operations/add-or-rm-mons/
Zitat von Janne Johansson <icepic.dz@xxxxxxxxx>:
Den mån 25 feb. 2019 kl 12:33 skrev Zhenshi Zhou <deaderzzs@xxxxxxxxx>:
I deployed a new cluster(mimic). Now I have to move all servers
in this cluster to another place, with new IP.
I'm not sure if the cluster will run well or not after I modify config
files, include /etc/hosts and /etc/ceph/ceph.conf.
No, certain ips will be visible in the databases, and those will not change.
Fortunately, the cluster has no data at present. I never encounter
such an issue like this. Is there any suggestion for me?
If you recently created the cluster, it should be easy to just
recreate it again,
using the same scripts so you don't have to repeat yourself as an admin since
computers are very good at repetitive tasks.
--
May the most significant bit of your life be positive.
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