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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: recommended nodes
Date Tue, 27 Nov 2012 19:52:34 GMT
Hi Michael,

so are you recommanding 32Gb per node?

What about the disks? SATA drives are to slow?

JM

2012/11/26, Michael Segel <michael_segel@hotmail.com>:
> Uhm, those specs are actually now out of date.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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