Re: Does Corosync support to use unicast for nodes heartbaet?

[Emre He <emre.he@xxxxxxxxx>]

Hi all, 

after i upgrade Corosync to version 1.4.1, it succeed. 

thanks, 

Emre

2013/10/11 Emre He <emre.he@xxxxxxxxx>

Hi Jan, 

I tried to setup 1 cluster with 3 nodes to test the unicast(udpu)configuration:

totem {

    version: 2

    token: 3000

    token_retransmits_before_loss_const: 10

    secauth: off

    threads: 0

    interface {

                member {

                        memberaddr: 10.x.x.1

                }

                member {

                        memberaddr: 10.x.x.2

                }

                member {

                        memberaddr: 172.x.x.1

                }

        ringnumber: 0

        bindnetaddr: <node ip>

        mcastaddr: 226.94.1.1

        mcastport: 5405

        ttl: 100

    }

    transport: udpu

}

basically i followed below example for "udpu": 

https://github.com/fghaas/corosync/blob/master/conf/corosync.conf.example.udpu

but it failed because Corosync need to add "mcastaddr" attribute. 

Aafter add "mcastaddr" with value " 226.94.1.1", the nodes which in the sam subnetwork: 10.x.x.1, 10.x.x.2 can show up in the "crm status", but the node 172.x.x.1 cannot join this cluster. 

btw: i tried to set ttl to 1 and 100, all failed. 

any clue about it? 

thanks, 

Emre

2013/10/7 Jan Friesse <jfriesse@xxxxxxxxxx>

Emre,
different subnets works without any problem as long as you set proper
ttl (man corosync.conf / ttl).

Heartbeat is integral part of totem protocol so there is nothing like
separated heartbeat and transport protocol. Just use transport key
(udp/udpu).

Regards,
  Honza

Emre He napsal(a):
> Hi,
>
> i want to know if Corosync support unicast for cluster nodes heartbeat in
> different sub-network? i google and found some pages said we can use below
> configuration for unicast:
> https://github.com/fghaas/corosync/blob/master/conf/corosync.conf.example.udpu
>
> but i cannot find any info about heartbeat styles: unicast or multicast or
> broadcast on Corosync official wiki pages, where could i find this official
> info?
>
> thanks,
> Emre
>
>
>
> _______________________________________________
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