[Pacemaker] How to make a redundant structure of arbitrator?

Andrew Beekhof andrew at beekhof.net
Tue Mar 27 01:56:24 EDT 2012

On Tue, Mar 27, 2012 at 2:40 PM, Gao,Yan <ygao at suse.com> wrote:
> On 03/27/12 10:33, Andrew Beekhof wrote:
>> On Tue, Mar 27, 2012 at 2:34 AM, Jiaju Zhang <jjzhang at suse.de> wrote:
>>> On Mon, 2012-03-26 at 11:50 +0900, Yuichi Seino wrote:
>>>> Hi Jiaju,
>>>> I have a question about booth.
>>>> I would like to know if a redundant structure of arbitrator is possible.
>>>> If it is possible, Please tell me how to the approach.
>>> If I understand the question correctly, you mean that the arbitrator
>>> should be redundant in case it might be down. Well, this can be resolved
>>> by adding more arbitrators, for example, you have 2 sites, and configure
>>> 3 arbitrators.
>> The arbitrator is already redundant isn't it?
>> Because you need a cluster node to fail before an arbitrator failure
>> has any ill-effect.
> I think the term "arbitrator" that Jiaju referred to is the booth daemon
> running on a single machine, which is added to make sure the amount of
> booth daemons are uneven number.

Right, but making it redundant is only useful if it and one of the
real sites is already down.
If you've lost two sites (real + tie-breaker), you already have bigger
issues than validating the sites are really gone and manually granting
a ticket.

> Regards,
>  Gao,Yan
> --
> Gao,Yan <ygao at suse.com>
> Software Engineer
> China Server Team, SUSE.
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