[Pacemaker] Cluster split brain on vmware VSphere

[Dejan Muhamedagic]

Hi,

On Mon, Jun 07, 2010 at 02:57:57PM +0200, Torresani, Roberto wrote:
> Sorry for have choosen the wrong ml... 

That's no problem. There's just better chance of getting help on
the other list.

> Here the corosync.conf used by one cluster, the other one is
> just the same provided by the epel repository packages.
> 
> I will try to raise the token value to 10000 as you suggest. Is
> there a theoretical or a best practice to set this value ?

No, but 5000 should be OK for most. Ultimately, it depends on
your network. I forgot what was exactly the case here, but it
seems like you had some heavy processing (backup?) which used
most of resources. That may be really hard to predict. You can
use sar or similar to monitor the load.

Thanks,

Dejan

> I will keep you informed as it goes, and open a thread on the
> corosync ml if necessary.
> 
> Thank you.
> 
> 
> # Please read the corosync.conf.5 manual page
> compatibility: whitetank
> 
> totem {
>         version: 2
>         secauth: off
>         threads: 0
>         token:          1000
>         hold: 180
>         token_retransmits_before_loss_const: 20
>         join:           60
>         consensus:      4800
>         vsftype:        none
>         max_messages:   20
>         interface {
>                 ringnumber: 0
>                 bindnetaddr: 192.168.206.0
>                 mcastaddr: 226.94.1.1
>                 mcastport: 5405
>         }
> }
> 
> logging {
>         fileline: off
>         to_stderr: yes
>         to_logfile: yes
>         to_syslog: yes
>         logfile: /tmp/corosync.log
>         debug: off
>         timestamp: on
>         logger_subsys {
>                 subsys: AMF
>                 debug: off
>         }
> }
> 
> amf {
>         mode: disabled
> }
> 
> aisexec {
>     user:  root
>     group: root
> }
> 
> service {
>     name: pacemaker
>     ver: 0
> }
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