Re: Any related paper on how to resolve hadoop SPOF issue?

["M. C. Srivas" <mc...@gmail.com>]

Are there any performance benchmarks available for Ceph? (with Hadoop,
without, both?)

On Thu, Aug 25, 2011 at 11:44 AM, Alex Nelson <aj...@cs.ucsc.edu> wrote:

> Hi George,
>
> UC Santa Cruz contributed a ;login: article describing replacing HDFS with
> Ceph.  (I was one of the authors.)  One of the key architectural advantages
> of Ceph over HDFS is that Ceph distributes its metadata service over
> multiple metadata servers.
>
> I hope that helps.
>
> --Alex
>
>
> On Aug 25, 2011, at 02:54 , George Kousiouris wrote:
>
> >
> > Hi,
> >
> > many thanks!!
> >
> > I also found this one, which has some related work also with other
> efforts, in case it is helpful for someone else:
> >
> https://ritdml.rit.edu/bitstream/handle/1850/13321/ATalwalkarThesis1-2011.pdf?sequence=1
> >
> >
> > BR,
> > George
> >
> > On 8/25/2011 12:46 PM, Nan Zhu wrote:
> >> Hope it helps
> >>
> >> http://www.springerlink.com/content/h17r882710314147/
> >>
> >> Best,
> >>
> >> Nan
> >>
> >> On Thu, Aug 25, 2011 at 5:43 PM, George Kousiouris<
> gkousiou@mail.ntua.gr>wrote:
> >>
> >>> Hi guys,
> >>>
> >>> We are currently in the process of writing a paper regarding hadoop and
> we
> >>> would like to reference any attempt to remove the single point of
> failure of
> >>> the Namenode. We have found in various presentations some efforts (like
> >>> dividing the namespace between more than one namenodes if i remember
> >>> correctly) but the search for a concrete paper on the issue came to
> nothing.
> >>>
> >>> Is anyone aware or has participated in such an effort?
> >>>
> >>> Thanks,
> >>> George
> >>>
> >>> --
> >>>
> >>> ---------------------------
> >>>
> >>> George Kousiouris
> >>> Electrical and Computer Engineer
> >>> Division of Communications,
> >>> Electronics and Information Engineering
> >>> School of Electrical and Computer Engineering
> >>> Tel: +30 210 772 2546
> >>> Mobile: +30 6939354121
> >>> Fax: +30 210 772 2569
> >>> Email: gkousiou@mail.ntua.gr
> >>> Site: http://users.ntua.gr/gkousiou/
> >>>
> >>> National Technical University of Athens
> >>> 9 Heroon Polytechniou str., 157 73 Zografou, Athens, Greece
> >>>
> >>>
> >>
> >
> >
> > --
> >
> > ---------------------------
> >
> > George Kousiouris
> > Electrical and Computer Engineer
> > Division of Communications,
> > Electronics and Information Engineering
> > School of Electrical and Computer Engineering
> > Tel: +30 210 772 2546
> > Mobile: +30 6939354121
> > Fax: +30 210 772 2569
> > Email: gkousiou@mail.ntua.gr
> > Site: http://users.ntua.gr/gkousiou/
> >
> > National Technical University of Athens
> > 9 Heroon Polytechniou str., 157 73 Zografou, Athens, Greece
> >
>
>