[Pacemaker] Nodes unable to connect / find each other

[Regendoerp, Achim]

As a status update, not got any further...
Confirmed with the Networks people that Multicast is enabled, but no luck.
Using unicast crm is not able to connect to the cluster (below is the unicast config used).
With unicast, there's no traffic at all (observed via tcpdump)

Beginning to wonder if there's either a version mismatch problem between those packages perhaps.

These are the package versions:

corosynclib-1.4.1-4.el6_2.1.x86_64
clusterlib-3.0.12.1-23.el6.x86_64
pacemaker-cluster-libs-1.1.6-3.el6.x86_64
resource-agents-3.9.2-7.el6.x86_64
cluster-glue-libs-1.0.5-2.el6.x86_64
pacemaker-libs-1.1.6-3.el6.x86_64
corosync-1.4.1-4.el6_2.1.x86_64
pacemaker-cli-1.1.6-3.el6.x86_64
cluster-glue-1.0.5-2.el6.x86_64
pacemaker-1.1.6-3.el6.x86_64

Between yesterday and today updated corosync from
1.4.1-4.el6 to 1.4.1-4.el6_2.1
No change however :|

OS is CentOS 6.2

Colleague's now compiling a few heartbeat packages instead to see if that gets the job done.

This being the config for unicast

compatibility: whitetank

totem {
        version: 2
        secauth: off
        threads: 0
        join:   1000
        consensus: 7500
        max_messages: 20
        interface {
                ringnumber: 0
                bindnetaddr: 10.26.29.0
                #mcastaddr: 226.94.1.1
                mcastport: 5405
                member
                {
                       memberaddr: 10.26.29.238
                }
                member
                {
                       memberaddr: 10.26.29.239
                }
                ttl: 3
        }
       transport: udpu
        clear_node_high_bit:    yes
}

logging {
        fileline: off
        to_stderr: off
        to_logfile: yes
        to_syslog: yes
        logfile: /var/log/cluster/corosync.log
        debug: on
        timestamp: on
        logger_subsys {
                subsys: AMF
                debug: off
        }
}

amf {
        mode: disabled
}


Any further ideas perhaps? Since I'm losing the plot myself somehow :(

Cheers!

Achim

-----Original Message-----
From: Regendoerp, Achim [mailto:Achim.Regendoerp at galacoral.com] 
Sent: 15 March 2012 10:56
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] Nodes unable to connect / find each other

Hi,

According to the network guy the multicast is all there, but we've got no step further, so we're trying your suggested method now :)

Didn't know that corosync now supports unicast too, must've missed that...

Thanks for the heads up!

Achim



-----Original Message-----
From: Andreas Kurz [mailto:andreas at hastexo.com] 
Sent: 14 March 2012 21:56
To: pacemaker at oss.clusterlabs.org
Subject: Re: [Pacemaker] Nodes unable to connect / find each other

On 03/14/2012 08:22 PM, mark - pacemaker list wrote:
> Hi,
> 
> On Wed, Mar 14, 2012 at 1:43 PM, Regendoerp, Achim 
> <Achim.Regendoerp at galacoral.com 
> <mailto:Achim.Regendoerp at galacoral.com>>
> wrote:
> 
>     Hi,____
> 
>     __ __
> 
>     Below is a cut out from the tcpdump run on both boxes. The tcpdump
>     is the same on both boxes.____
> 
>     The traffic only appears if I set the bindnetaddr in
>     /etc/corosync/corosync.conf to the machines' individual IP instead
>     of to 10.26.29.0 (as advised by howtos).____
> 
>     Having the latter IP as bindnetaddr, there's no traffic at 
> all.____
> 
>     __ __
> 
> 
> 
> I initially had some communication issues like these, then I realized 
> I'd forgotten to set up my switch/vlan to handle multicast.  Oops.  
> With that fixed, everything came up and has worked wonderfully since.

Or use upnp ... unicasts if you don't want/can change your network setup

Regards,
Andreas

--
Need help with Pacemaker?
http://www.hastexo.com/now

> 
> Something to check, anyhow.
> 
> Regards,
> Mark
> 
> 
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org 
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org Getting started: 
> http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs: http://bugs.clusterlabs.org



_______________________________________________
Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
http://oss.clusterlabs.org/mailman/listinfo/pacemaker

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org