[Linux-cluster] Adding a new node to rh cluster + GFS2

[Christine Caulfield]

On 14/12/09 08:49, Arturo Gonzalez Ferrer wrote:
> Dear all,
>
> I'm in trouble with adding a new node to an existing cluster of three
> nodes (so I want to have four), because it somehow doesn't let me access
> the cluster infrastructure.
>
> These 3 nodes were set up as http servers, sharing a GFS2 volume
> (physical: vg_cluster, logical: lv_cluster) where data is stored.
>
> I want to set up the new node to access the same GFS2 volume, with the
> idea of exporting the data via NFS, so that a remote backup library can
> be configured to backup nightly the data, by connecting to the new node.
>
> I've tried a lot of things, always getting same kind of errors.
>
> Running "cman_tool status" on any of the 3 nodes i get:
>
> Version: 6.2.0
> Config Version: 70
> Cluster Name: campusvirtual
> Cluster Id: 45794
> Cluster Member: Yes
> Cluster Generation: 1136
> Membership state: Cluster-Member
> Nodes: 3
> Expected votes: 4
> Total votes: 3
> Quorum: 3
> Active subsystems: 9
> Flags: Dirty
> Ports Bound: 0 11 177
> Node name: cev01
> Node ID: 2
> Multicast addresses: 239.192.178.149
> Node addresses: 150.214.243.20
>
>
> while running "cman_tool status" on the new node:
>
> Version: 6.2.0
> Config Version: 70
> Cluster Name: campusvirtual
> Cluster Id: 45794
> Cluster Member: Yes
> Cluster Generation: 1124
> Membership state: Cluster-Member
> Nodes: 1

This is the key. The new node can't see the network traffic of the other 
three. The most likely explanation for this is iptables blocking the 
traffic.

But check other network connections and settings too - It's almost 
certainly a network configuration problem. The multicast and node 
addresses look fine to me.

Chrissie