[Linux-cluster] can't communicate with fenced -1

[Gian Paolo Buono]

Hi,
the problem of my cluster is that it start-up weel but after two days the
problem that I have described is running, and this problem gets solved if
the two machines are rebooted at the same time.

Thanks
Gian Paolo


2008/6/25 GS R <gsrlinux at gmail.com>:

>
>
> On 6/24/08, Gian Paolo Buono <gpbuono at gmail.com> wrote:
>
>> Hi,
>>
>> We have two RHEL5.1 boxes installed sharing a
>> single iscsi emc2 SAN, whitout fence devices. System is configured
>>
>> as a high-availability system of xen guest.
>>
>> One of the most repeating problems are fence_tool related.
>>
>>   # service cman start
>>   Starting cluster:
>>      Loading modules... done
>>      Mounting configfs... done
>>      Starting ccsd... done
>>      Starting cman... done
>>      Starting daemons... done
>>  Starting fencing... fence_tool: can't communicate with fenced -1
>>
>>
>>  # fenced -D
>>   1204556546 cman_init error 0 111
>>
>>   # clustat
>>   CMAN is not running.
>>
>>   # cman_tool join
>>
>>   # clustat
>>   msg_open: Connection refused
>>
>>   Member Status: Quorate
>>     Member Name                        ID   Status
>>
>>     ------ ----                        ---- ------
>>     yoda1                             1 Online, Local
>>     yoda2                             2 Offline
>>
>> Sometimes this problem gets solved if the two machines are rebooted at
>>
>>
>> the same time. But in the current HA configuration, I cannot guarantee
>> two systems will be rebooted at the same time for every problem we
>> face. This is my config file:
>>
>> ###################################cluster.conf####################################
>>
>>
>> <?xml version="1.0"?>
>> <cluster alias="yoda-cl" config_version="2" name="yoda-cl">
>>         <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/>
>>
>>
>>         <clusternodes>
>>                 <clusternode name="yoda2" nodeid="1" votes="1">
>>                         <fence/>
>>                 </clusternode>
>>                 <clusternode name="yoda1" nodeid="2" votes="1">
>>
>>
>>                         <fence/>
>>                 </clusternode>
>>         </clusternodes>
>>         <cman expected_votes="1" two_node="1"/>
>>         <rm>
>>                 <failoverdomains/>
>>
>>
>>                 <resources/>
>>         </rm>
>>         <fencedevices/>
>> </cluster>
>> ###################################cluster.conf####################################
>> Regards.
>>
>> Hi
>
> I configured a two node cluster with no fence device on RHEL5.1.
> The cluster started and stopped with no issues. The only difference that I
> see is that I have used FQDN in my cluster.conf
>
> i.e., <clusternode name="yoda2*.gsr.com*" nodeid="1" votes="1">
>
> Check your /etc/hosts if it has the FQDN in it.
>
> Thanks
> Gowrishankar Rajaiyan
>
>
>
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