Federation is already distributed (a namespace part per node); are you asking about something else?
On Sun, Apr 21, 2013 at 5:47 PM, <anthony.lel...@free.fr> wrote: > Hm, yes, it looks interesting. Thank you. > > Do you know if that functionality is planned to be distributed? > > Anthony. > > > ----- Mail original ----- > De: "Harsh J" <ha...@cloudera.com> > À: "<user@hadoop.apache.org>" <user@hadoop.apache.org> > Envoyé: Dimanche 21 Avril 2013 14:06:45 > Objet: Re: HDFS load-balancing > > 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 -- Harsh J
