[Linux-cluster] qdiskd master election and loss of quorum

Alain RICHARD alain.richard at equation.fr
Tue Nov 3 08:59:57 UTC 2009


Le 2 nov. 2009 à 20:06, Lon Hohberger a écrit :

> On Mon, 2009-11-02 at 17:59 +0100, Alain RICHARD wrote:
>> I am currently using a n nodes configuration with a qdiskd process to
>> sustain a n-1 node failure.
>>
>>
>> The simplest case is a two node :
>>
>>
>> <cluster config_version="79" name="xxx">
>>        <totem token="42000"/>
>>        <clusternodes>
>>        <cman expected_votes="3" two_node="0"/>
>
> Add 'quorum_dev_poll="42000' to the cman tag.
>
> -- Lon


I just found out a note describing this parameter :

http://kbase.redhat.com/faq/docs/DOC-2882

but It seams to deals with problems with multipath and cman  
interraction on one node. My problem seams to be a little bit  
different : I do stop qdisk and cman on node 1, and this triggers a  
temporary loss of quorum on the node 2.

I will try this parameter to see if I reproduce the problem.

Regards,

PS: what is the default value for this parameter ?


-- 
Alain RICHARD <mailto:alain.richard at equation.fr>
EQUATION SA <http://www.equation.fr/>
Tel : +33 477 79 48 00     Fax : +33 477 79 48 01
E-Liance, Opérateur des entreprises et collectivités,
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