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

[Alex Kompel]

On Tue, Sep 1, 2009 at 12:19 PM, Lon Hohberger <lhh at 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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