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From Michael Segel <michael_se...@hotmail.com>
Subject Re: recommended nodes
Date Mon, 26 Nov 2012 14:43:58 GMT
Uhm, those specs are actually now out of date. 

If you're running HBase, or want to also run R on top of Hadoop, you will need to add more
memory. 
Also forget 1GBe got 10GBe,  and w 2 SATA drives, you will be disk i/o bound way too quickly.



On Nov 26, 2012, at 8:05 AM, Marcos Ortiz <mlortiz@uci.cu> wrote:

> Are you asking about hardware recommendations?
> Eric Sammer on his "Hadoop Operations" book, did a great job about this:
> For middle size clusters (until 300 nodes):
> Processor: A dual quad-core 2.6 Ghz
> RAM: 24 GB DDR3
> Dual 1 Gb Ethernet NICs
> a SAS drive controller
> at least two SATA II drives in a JBOD configuration
> 
> The replication factor depends heavily of the primary use of your cluster.
> 
> On 11/26/2012 08:53 AM, David Charle wrote:
>> hi
>> 
>> what's the recommended nodes for NN, hmaster and zk nodes for a larger cluster, lets
say 50-100+
>> 
>> also, what would be the ideal replication factor for larger clusters when u have
3-4 racks ?
>> 
>> --
>> David
>> 10mo. ANIVERSARIO DE LA CREACION DE LA UNIVERSIDAD DE LAS CIENCIAS INFORMATICAS...
>> CONECTADOS AL FUTURO, CONECTADOS A LA REVOLUCION
>> 
>> http://www.uci.cu
>> http://www.facebook.com/universidad.uci
>> http://www.flickr.com/photos/universidad_uci
> 
> -- 
> 
> Marcos Luis Ortíz Valmaseda
> about.me/marcosortiz <http://about.me/marcosortiz>
> @marcosluis2186 <http://twitter.com/marcosluis2186>
> 
> 
> 
> 10mo. ANIVERSARIO DE LA CREACION DE LA UNIVERSIDAD DE LAS CIENCIAS INFORMATICAS...
> CONECTADOS AL FUTURO, CONECTADOS A LA REVOLUCION
> 
> http://www.uci.cu
> http://www.facebook.com/universidad.uci
> http://www.flickr.com/photos/universidad_uci


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