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Re: [Linux-cluster] 3 node cluster and quorum disk?





On Tue, Sep 1, 2009 at 12:19 PM, Lon Hohberger <lhh redhat com> wrote:
On Wed, 2009-08-26 at 16:11 +0200, Jakov Sosic wrote:
> Hi.
>
> I have a situation - when two nodes are up in 3 node cluster, and one
> node goes down, cluster looses quorate - although I'm using qdiskd...


>       <!-- Token -->
>       <totem token="55000"/>
>
>       <!-- Quorum Disk -->
>       <quorumd interval="5" tko="5" votes="2"
>       label="SAS-qdisk" status_file="/tmp/qdisk"/>

<cman quorum_dev_poll="55"/>

If that doesn't fix it entirely, get rid of status_file, decrease
interval, and increase tko.  Try:

interval=2 tko=12 ?


I had to do some code diving to figure out cluster timeouts. Is this correct assumption?

qdisk.tko_up*qdisk.interval < qdisk.wait_master*qdisk.interval < cman.quorum_dev_poll/1000 + qdisk.interval < qdisk.tko*qdisk.interval < totem.token/1000

-Alex
 

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