[PVE-User] Impossible to create two nodes cluster.

Angel Docampo adocampo at dltec.net
Thu Sep 26 15:26:11 CEST 2013


El 26/09/13 15:16, Luis G. Coralle escribiรณ:
> I think they should be in same network.
> How is configured the other proxmox cluster?
>
>
> 2013/9/26 Angel Docampo <adocampo at dltec.net <mailto:adocampo at dltec.net>>
>
>     Everytime I need to create a cluster in proxmox I suffer a bit
>     PITA. But
>     now I simply can't do it. I've reinstalled several times and
>     deleted and
>     recreated the cluster again and again. No luck.
>
>     Multicast does not work in this network, so I used unicast. There are
>     another proxmox cluster in the same network and it's working (it was
>     very painfull also to install, but once I realized the problem was
>     unicast and the mtu size, it works very well, except when adding a
>     node,
>     that always is another pain).
>
>     So, I would like to explain how I'm doing this and perhaps I'm pretty
>     obfuscated to see what is happening.
>
>     I've installed two debian 7.1, LVM partitions (not necessary, but
>     I did
>     it anyway), and installed proxmox. The servers works as expected
>     separately.
>
>     The server p01 have the IP: 192.168.200.197
>     The server p02 have the IP: 192.168.201.191
>
>     The two networks are visible each other, and as cluster protocol
>     is udp,
>     it should work. Am I wrong?
>
>     Then on p01, I've created the cluster with "pvecm create testcluster",
>     it worked
>     I've copied /etc/pve/cluster.conf to /etc/pve/cluster.conf.new,
>     increased the version number and add transport="udpu" to the cman
>     section and added the section <totem netmtu="1400" /> (I tried without
>     it also). Then I've activated the new configuration throught the GUI.
>
>     I've double checked /etc/hosts to assure they resolve the names
>     through
>     this mechanism.
>
>     Then on p02 I tried to add the node with "pvecm add p01" (also tried
>     with IP and also tried this command from p01, both with hostname
>     and IP
>     of the p02 node).
>
>     root at p02:~# pvecm add p01
>     root at p01'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...
>     [FAILED]
>        Waiting for quorum...
>
>     Well, it never works. The node waits for a quorum forever. I can
>     see the
>     p02 node on the p01 GUI (with a red light), but I have no access.
>     If I run:
>     root at p01:~# pvecm status
>     Version: 6.2.0
>     Config Version: 2
>     Cluster Name: testcluster
>     Cluster Id: 692
>     Cluster Member: Yes
>     Cluster Generation: 1276
>     Membership state: Cluster-Member
>     Nodes: 1
>     Expected votes: 1
>     Total votes: 1
>     Node votes: 1
>     Quorum: 1
>     Active subsystems: 5
>     Flags:
>     Ports Bound: 0
>     Node name: p01
>     Node ID: 1
>     Multicast addresses: 239.192.2.182
>     Node addresses: 192.168.200.197
>
>     root at p02:~# pvecm status
>     Version: 6.2.0
>     Config Version: 2
>     Cluster Name: testcluster
>     Cluster Id: 692
>     Cluster Member: Yes
>     Cluster Generation: 24
>     Membership state: Cluster-Member
>     Nodes: 1
>     Expected votes: 2
>     Total votes: 1
>     Node votes: 1
>     Quorum: 2 Activity blocked
>     Active subsystems: 1
>     Flags:
>     Ports Bound: 0
>     Node name: p02
>     Node ID: 2
>     Multicast addresses: 239.192.2.182
>     Node addresses: 192.168.201.191
>
>     root at p01:~# pvecm nodes
>     Node  Sts   Inc   Joined                        Name
>        1   M   1276   2013-09-26 13:02:19  p01
>        2   X      0                                          p02
>
>     root at p02:~# pvecm nodes
>     Node  Sts   Inc   Joined                      Name
>        1   X      0                                        p01
>        2   M     24   2013-09-26 13:04:02  p02
>
>     And trying to access from p01 GUI to the local resources of p02,
>     Appears
>     the message "can't open '/etc/pve/authkey.pub' - No such file or
>     directory (401)" As the /etc/pve/ mountpoint on p02 is a) read
>     only and
>     b) not the same than p01 (i.e: on p01 there are more files), and
>     /etc/pve/authkey.pub is not in p02.
>
>     Some help is very appretiated
>     Regards,
>
>     --
>     Angel Docampo
>
>
>     Nota Legal<http://www.dltec.net/notalegal.html>
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>
>
>
>
> -- 
> Luis G. Coralle

May be. Im not sure, but I think that I already mount once a proxmox
cluster with nodes in two different networks... But the actual working
cluster nodes are all in the same network. :S

So I'm going to put them on the same network and I tell you back.

Regards,

-- 
Angel Docampo

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