Cluster Node Replacement

[frankz]

Hello everyone, I should replace a node that is part of a cluster of 3 servers. The node has as its host name pve3, in the past I have made replacements but with different names as I have always feared that in the release phase it remains in the configurations that refer to that node or can I safely give it the same host name back? Thank you

 

[shrdlicka]

Hi,

is your cluster running Ceph? if yes, then it might gets a bit more complicated .

If you are not using Ceph: Have you removed the old node via pvecm delnode [nodename]? You should be able to add a node with the same name then.

 

[frankz]

Hi,

is your cluster running Ceph? if yes, then it might gets a bit more complicated .

If you are not using Ceph: Have you removed the old node via pvecm delnode [nodename]? You should be able to add a node with the same name then.

First of all thank you for answering no I do not use Ceph I use the standard configuration in NFS and ZFS I was just asking to be sure if removing with the procedure mentioned in the official documentation if I credit the node with the same name may occur conflicts due to files maybe left somewhere in the system. I am writing this to you because some time ago I read a documentation or mostly a Fac of some users complaining about dirty files in the system

 

[shrdlicka]

If you wan't to make sure nothing is left you can delete from /etv/pve/priv/known_hosts and /etc/pve/piv/authorized_keys the entries of the old host. You can also remove the folder in /etc/pve/nodes/<nodename>. But that shouldn't be strictly necessary.