Federation is already distributed (a namespace part per node); are you
asking about something else?
On Sun, Apr 21, 2013 at 5:47 PM, <[EMAIL PROTECTED]> wrote:
> Hm, yes, it looks interesting. Thank you.
> Do you know if that functionality is planned to be distributed?
> ----- Mail original -----
> De: "Harsh J" <[EMAIL PROTECTED]>
> À: "<[EMAIL PROTECTED]>" <[EMAIL PROTECTED]>
> 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
> On Sun, Apr 21, 2013 at 3:31 PM, <[EMAIL PROTECTED]> 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?
> Harsh J