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From "Ch Praveena" <ps050...@gmail.com>
Subject Re: Split-brain problem.
Date Tue, 08 Apr 2008 07:43:10 GMT
Thankyou Marcus,
But let me know the reasons for the occurence of the Netsplit, which lead
Split brain problem.




2008/4/8 Marcus Franke <mfranke@evendi.de>:

> On Tue, Apr 08, 2008 at 01:00:54PM +0530, Ch Praveena wrote:
> > Hi all,
> >
> >    While going on with Terracotta article,
> > --
> http://www.terracotta.org/confluence/display/explore/How+Terracotta+Works
> > ,
> > For implementing application server clustering, I found this phrase,
> > "Split-brain problem."..
> >
> > Please let me know about this in detail..
> >
>
> Easy,
>
> if you have a cluster of 4 nodes, and you have a netsplit, you'll end with
> two clusters with two nodes. Split brain problem is that both parts are
> equal in size, so how can the software decide, which side is the correct
> one and which nodes shall drop dead and restart?
>
> Because of this you may want an uneven number of nodes in your cluster.
> This
> way you cannot have a split'ed cluster with equal numbers of nodes on each
> side.
>
>
>
> regards,
> Marcus
>
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-- 
Regards,

Praveena Chalamcharla,
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