[Linux-cluster] Node is randomly fenced

[Digimer]

Even if the token changes stop the immediate fencing, don't leave it 
please. There is something fundamentally wrong that you need to 
identify/fix.

Keep us posted!

On 12/06/14 01:24 PM, Schaefer, Micah wrote:
> The servers do not run any tasks other than the tasks in the cluster
> service group.
>
> Nodes 3 and 4 are physical servers with a lot of horsepower and nodes 1
> and 2 are virtual machines with much less resources available.
>
> I adjusted the token settings and will watch for any change.
>
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> On 6/12/14, 1:08 PM, "Digimer" <lists at alteeve.ca> wrote:
>
>> On 12/06/14 12:48 PM, Schaefer, Micah wrote:
>>> As far as the switch goes, both are Cisco Catalyst 6509-E, no spanning
>>> tree changes are happening and all the ports have port-fast enabled for
>>> these servers. My switch logging level is very high and I have no
>>> messages
>>> in relation to the time frames or ports.
>>>
>>> TOTEM reports that ³A processor joined or left the membershipŠ², but
>>> that
>>> isn¹t enough detail.
>>>
>>> Also note that I did not have these issues until adding new servers:
>>> node3
>>> and node4 to the cluster. Node1 and node2 do not fence each other
>>> (unless
>>> a real issue is there), and they are on different switches.
>>
>> Then I can't imagine it being network anymore. Seeing as both node 3 and
>> 4 get fenced, it's likely not hardware either. Are the workloads on 3
>> and 4 much higher (or are the computers much slower) than 1 and 2? I'm
>> wondering if the nodes are simply not keeping up with corosync traffic.
>> You might try adjusting the corosync token timeout and retransmit counts
>> to see if that reduces the node loses.
>>
>> --
>> Digimer
>> Papers and Projects: https://alteeve.ca/w/
>> What if the cure for cancer is trapped in the mind of a person without
>> access to education?
>>
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>> Linux-cluster at redhat.com
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>
>


-- 
Digimer
Papers and Projects: https://alteeve.ca/w/
What if the cure for cancer is trapped in the mind of a person without 
access to education?