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From Dhruba Borthakur <dhr...@gmail.com>
Subject Re: Use VIP for DataNodes
Date Wed, 26 Jan 2011 05:47:00 GMT
Fb does not use the VIP approach, we tried that but quickly found out some
limitations, one main problem being that the failover server pair has to be
in the same subnet (for VIP to work). Instead we now use the AvatarNode
integrated with Zookeeper.

-dhruba

On Tue, Jan 25, 2011 at 6:12 PM, Harsh J <qwertymaniac@gmail.com> wrote:

> This is a good approach, is used by many to mask the NameNode address
> for the DataNodes; and is also good to use while using BackupNode
> (Even Facebook does this).
>
> On Wed, Jan 26, 2011 at 7:38 AM, mac fang <mac.hadoop@gmail.com> wrote:
> > Hi, guys,
> >
> > Do we have any plan to enable VIP between NameNode and DataNodes, I mean
> > multiple NameNodes and we use a VIP stands before the NNs. Then DNs only
> > need to connect to the VIP. I don't know if it is valuable we have this
> impl
> > in our hdsf and if there has any issues?
> >
> > Any hints are valuable for me. :)
> >
> > regards
> > macf
> >
>
>
>
> --
> Harsh J
> www.harshj.com
>



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