Hi,

 Community started working on NameNode High availabily.
 you can refer : https://issues.apache.org/jira/browse/HDFS-1623

regards,
Uma

----- Original Message -----
From: George Kousiouris <gkous...@mail.ntua.gr>
Date: Thursday, August 25, 2011 3:15 pm
Subject: Any related paper on how to resolve hadoop SPOF issue?
To: "common-u...@hadoop.apache.org" <common-u...@hadoop.apache.org>, 
common-dev@hadoop.apache.org

> 
> 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: gkous...@mail.ntua.gr
> Site: http://users.ntua.gr/gkousiou/
> 
> National Technical University of Athens
> 9 Heroon Polytechniou str., 157 73 Zografou, Athens, Greece
> 
> 

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