Are you speaking of load balancing of the metadata requests served by the NameNode? There isn't a direct way right now but HDFS Federation features would interest you, as it helps divide the namespace itself into several different NNs.
Read more about Federation at http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/Federation.html On Sun, Apr 21, 2013 at 3:31 PM, <anthony.lel...@free.fr> wrote: > Hello everybody. > > I am wondering how HDFS deals with load balancing. I mean, there is on > primary namenode and only one secondary namenode (if I well understood the > documentation). > > Is that right? > > But with only one server answering all requests, I can't imagine it could be > enough. > I have also read that facebook use that FS so it might be possible, isn't it? > > Regards. > > Anthony. -- Harsh J
