[Linux-cluster] Cluster for number-crunching purposes

[Jayson Vantuyl]

I think having 20 votes per node with cman expecting 1 vote could  
completely break quorum calculation (although it would appear to work  
just fine until you had a network failure).

On Jan 10, 2007, at 9:13 AM, Fedele Stabile wrote:

> I have a new 35-nodes cluster with a SAN for data storage, my SAN  
> is connected via SCSI with two nodes.
> OS is CentOS4 with ClusterSuite
> Cluster purpose is numer-crinching:
> SAN disks are GFS and exported via gnbd to the other 33 nodes in  
> the cluster.
> Configuration file cluster.conf is below.
>
> This is my first cluster configured with the ClusterSuite, can  
> anyone help me to understand if i made any mistake?
>
> Thank you
>
>  Fedele STABILE
>
>
> /etc/cluster/cluster.conf
>
> <?xml version="1.0"?>
> <cluster config_version="138" name="linuxlab-cl">
>         <fence_daemon post_fail_delay="0" post_join_delay="20"/>
>         <clusternodes>
>                 <clusternode name="server1" votes="20">
>                         <fence>
>                                 <method name="1">
>                                         <device name="ILO_server1"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
>                 <clusternode name="server2" votes="20">
>                         <fence>
>                                 <method name="1">
>                                         <device name="ILO_sevrer2"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
>                 <clusternode name="pc0" votes="0">
>                         <fence>
>                                 <method name="1">
>                                         <device name="GNBD_server1"  
> nodename="pc0"/>
>                                 </method>
>                         </fence>
>                 </clusternode>
> 	.....
> 	.....
>         </clusternodes>
>         <cman expected_votes="1"/>
>         <fencedevices>
>                 <fencedevice agent="fence_ilo" .... />
>                 <fencedevice agent="fence_gnbd" name="GNBD_server1"  
> servers="server1 server2"/>
>                 <fencedevice agent="fence_ilo" .... />
>         </fencedevices>
>         <rm>
> 	.....
> 	.....
> </cluster>
>
>
>
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