[ClusterLabs] two node cluster not behaving right

[Jan Friesse]

Steffen,

user.clusterlabs.org at siimnet.dk napsal(a):
>
>> On 6. nov. 2015, at 08.42, Jan Friesse <jfriesse at redhat.com> wrote:
>>
>> This means something is blocking successful delivery of packets. Make sure to:
>> - Properly configure firewall (for testing you can disable it completely)
>> - Make sure you have properly configured multicast. As alternative, you can try udpu. Udpu is usually better compatible with switches and for two node use case performance is same.
> Seem unicast fixed the issue ;)

Good.

Multicast is always source of problems. Also if you decide one day to 
scale more and try multicast, you can try 
https://alteeve.ca/w/Fencing_KVM_Virtual_Servers#Fedora_18_Host.3B_Bridge_Configuration_Issue

Regards,
   Honza



> This was done by changing cman configuration to udpu transport in cluster.conf like this:
>
> <cman transport="udpu" port="5405" two_node="1" expected_votes="1” /
>
>   /Steffen
>
> PS! Assuming multicast in open vswitch is the culpit
>
>
>
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