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new node wont join cluster

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I have 3 servers already set up in a cluster:

Code:

root@proxmox3:~# pvecm n
Node  Sts  Inc  Joined              Name
  1  M    124  2013-01-05 16:45:57  proxmox2
  2  M    124  2013-01-05 16:45:57  proxmox3
  3  M    272  2013-02-08 12:04:01  proxmox4

I'm trying to add a 4th. When I get an error and have to use -force, probably due to all the tinkering I've done trying to get this working... With -force, I get another error "unable to copy ssh ID":

Code:

root@proxmox5:~# pvecm add proxmox3
authentication key already exists
root@proxmox5:~# pvecm add proxmox3 -force
unable to copy ssh ID
root@proxmox5:~#



In my searching, I've found it suggested I try 'ssh-copy-id' on a command line to see why it's failing, here it is:

Code:

root@proxmox5:~# ssh-copy-id proxmox3
cat: write error: File too large
root@proxmox5:~#

I have plenty of space, enough for ssh keys at least:

Code:

root@proxmox5:~# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/system-root
                      3.0G  481M  2.6G  16% /
tmpfs                3.9G    0  3.9G  0% /lib/init/rw
udev                  3.9G  288K  3.9G  1% /dev
tmpfs                3.9G  35M  3.9G  1% /dev/shm
/dev/md0              289M  93M  182M  34% /boot
/dev/mapper/system-home
                      508M  26M  482M  6% /home
/dev/mapper/system-opt
                      508M  26M  482M  6% /opt
/dev/mapper/system-tmp
                    1014M  33M  982M  4% /tmp
/dev/mapper/system-usr
                    1014M  459M  556M  46% /usr
/dev/mapper/system-var
                    1014M  407M  608M  41% /var
/dev/mapper/system-images
                      300G  33M  300G  1% /srv/vm/images
/dev/mapper/system-isos
                      50G  33M  50G  1% /srv/vm/isos
/dev/mapper/system-var_log
                      508M  36M  472M  8% /var/log
/dev/fuse              30M  16K  30M  1% /etc/pve
root@proxmox5:~#

I'm at a loss how to troubleshoot this further, any ideas?

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