[Linux-cluster] Two-Node Cluster Problem

[Tiago Cruz]

Did you have:

<cman two_node="1" expected_votes="1"/>

?

-- 
Tiago Cruz <tiagocruz at forumgdh.net>


On Tue, 2009-05-26 at 16:00 +0200, Marco Nietz wrote:
> Hi,
> 
> i have a Problem running a Two-Node Cluster (without qudisk) on RHEL 5.3
> with all the latest Patches installed. For testing i use a very simple
> setup with only one ip-address as the service.
> 
> Both nodes have two network-interfaces, both are configured in cluster.conf
> 
> <clusternodes>
>    <clusternode name="10.102.10.51" nodeid="1" votes="1">
>       <altname name="10.209.170.51"/>
>          <fence>
>             <method name="1">
>                <device name="ipsdb01.drac"/>
>             </method>
>          </fence>
>    </clusternode>
>    <clusternode name="10.102.10.28" nodeid="2" votes="1">
>       <altname name="10.209.170.28"/>
>          <fence>
>             <method name="1">
>                <device name="ips08.drac"/>
>             </method>
>          </fence>
> </clusternode>
> 
> When the service runs on node b and i take down the first interface
> (10.209.170.28) with: 'ip link set eth1 down' the service is taken over
> by node a within a few seconds. When i then disable the second interface
> on node b i would expect that node a recognize the failure and fence
> down node b but this does not happen. This only occurs in this one
> direction, the other way - node a holds the service and need to be
> fenced by node b works fine.
> 
> What could cause such a behaviour ?
> 
> Here are some more sniplets which could be interessting from my cluster.conf
> 
> <fence_daemon clean_start="1" post_fail_delay="10" post_join_delay="30"/>
> 
> <cman expected_votes="1" two_node="1">
> 
> Most of the configuration was done using conga (luci,ricci)
> 
> 
> Regards
> Marco
> 
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