Wednesday, February 6, 2013

Remove Node Cluster (forever) on Proxmox 2.2

My PROXMOX cluster nodes:


root@ayllu:~# pvecm nodes
Node  Sts   Inc   Joined         Name   
1   M  64   2013-02-05 11:24:15  ayllu   
2   X   0                        quipu


As only two members are joined to cluster, following message will show you for any action you want to perform (Create VM, delete node, add another node, etc):


root@ayllu:~# pvecm delnode quipu
cluster not ready - no quorum?


SSH to Master and change weigth (To have quorum :P )


root@ayllu:~# pvecm expected 1
Now remove node from Cluster and try to add another node into Cluster like this:

On Master:
root@ayllu:~# pvecm delnode quipu

On brand new Node:
root@apu:~# pvecm add 172.16.30.4
root@172.16.30.4's password:
copy corosync auth key
stopping pve-cluster service
Stopping pve cluster
filesystem: pve-cluster.backup old database
Starting pve cluster filesystem : pve-cluster.
Starting cluster:   Checking if cluster has been disabled at boot... [  OK  ]
Checking Network Manager... [  OK  ]   Global setup... [  OK  ]   Loading kernel modules... [  OK  ]   Mounting configfs... [  OK  ]   Starting cman... [  OK  ]   Waiting for quorum... [  OK  ]   Starting fenced... [  OK  ]   Starting dlm_controld... [  OK  ]   Tuning DLM kernel config... [  OK  ]   Unfencing self... [  OK  ]waiting for quorum...OKgenerating node certificatesmerge known_hosts filerestart servicesRestarting PVE Daemon: pvedaemon.Restarting web server: apache2 ... waiting .
successfully added node 'apu' to cluster.

Check changes in MASTER:
root@ayllu:~# pvecm nodes
Node  Sts   Inc   Joined            Name   
1   M     64   2013-02-05 11:24:15  ayllu   
2   M     68   2013-02-06 07:36:29  apu

Suerte con la virtualizacion!


BONUS:   Remove a NODE from GUI, delete/move the whole directory /etc/pve/nodes/



root@ayllu:/etc/pve/nodes# pwd
/etc/pve/nodes
root@ayllu:/etc/pve/nodes# ls -l
total 0
drwxr-x--- 2 root www-data 0 Feb  6 07:36 apu
drwxr-x--- 2 root www-data 0 Aug 19 20:44 ayllu
drwxr-x--- 2 root www-data 0 Aug 19 20:06 mycluster
drwxr-x--- 2 root www-data 0 Jan 28 12:03 quipu   <--x font="">

root@ayllu:/etc/pve/nodes# mv quipu/ /home/trash

GUI is clean, without "Quipu" :D

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