[Linux-HA] My Second Pacemaker Cluster

Dejan Muhamedagic dejanmm at fastmail.fm
Thu Oct 21 02:37:32 MDT 2010


Hi,

On Wed, Oct 20, 2010 at 03:57:22PM -0700, Robinson, Eric wrote:
> Hey folks... don't forget me! I just need to get eyes on the following
> config and make sure my ring numbers, mcastaddr, and mcastports look
> workable... 
> 
> 
>                         Existing 2-Node Cluster
> 
>                       |----(198.51.100.0/30)---|
>                       |                        |
>             |---------------------|  |---------------------|
>             |        eth3         |  |        eth3         |
>             |                     |  |                     |
>             |     CLUSTER1_A      |  |     CLUSTER1_B      |
>             |                     |  |                     |
>             |   eth0       eth1   |  |   eth0       eth1   |
>             |     |--bond0--|     |  |     |--bond0--|     |
>             |          |          |  |          |          |
>             |---------------------|  |---------------------|
>                        |                        |
>                        |                        |
> ----------------------------(192.168.10.0/24)------------------------
> 	   |                   |                           |
>          |                   |                           |
> |-----------------| |-----------------|       |---------------------|
> |        |        | |        |        |       |          |          |
> |   |--bond0--|   | |   |--bond0--|   |       |     |--bond0--|     |
> | eth0       eth1 | | eth0       eth1 |       |   eth0       eth1   |
> |                 | |                 |       |                     |
> |   CLUSTER2_A    | |    CLUSTER2_B   |       |      CLUSTER2_C     |
> |                 | |                 |       |                     |
> | eth2            | | eth2       eth3 |       |    eth3      eth2   |
> |-----------------| |-----------------|       |---------------------|
>     |                            |                   |         |
>     |                            |-(198.51.100.4/30)-|         |
>     |                                                          |
>     |------(198.51.100.8/30)-----------------------------------|
> 
>                             New 3-Node Cluster
> 
> 
> The interface sections on existing CLUSTER1 look like this...
> 
>         interface {
>                 ringnumber: 0
>                 bindnetaddr: 192.168.10.0
>                 mcastaddr: 226.94.1.1
>                 mcastport: 4000
>         }
> 
>         interface {
>                 ringnumber: 1
>                 bindnetaddr: 198.51.100.0 
>                 mcastaddr: 226.94.1.1
>                 mcastport: 4000 
>         } 
> 
> I'm thinking the interface sections on CLUSTER2 need to look like
> this...
> 
> 
>         interface {
>                 ringnumber: 0
>                 bindnetaddr: 192.168.10.0
>                 mcastaddr: 226.94.1.2
>                 mcastport: 4002
>         }
> 
>         interface {
>                 ringnumber: 1
>                 bindnetaddr: 198.51.100.4 
>                 mcastaddr: 226.94.1.2
>                 mcastport: 4002
>         }
>         interface {
>                 ringnumber: 2
>                 bindnetaddr: 198.51.100.8 
>                 mcastaddr: 226.94.1.2
>                 mcastport: 4002 
>         }
> 
> Does that look right?

I don't think you can use the last two rings, as they don't span
all nodes. At least that's what it looks like on your diagram.
Otherwise, looks fine. But note that redundant rings are "still
not there" to paraphrase the upstream.

Thanks,

Dejan

> --
> Eric Robinson
> 
> 
> 
> 
> 
> 
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