For a 1PB installation you would need close to 170 servers with 12 TB disk pack installed on them (with replication factor of 2). Thats a conservative estimate
CPUs: 4 cores with 16gb of memory Namenode: 4 core with 32gb of memory should be ok. On Fri, Oct 21, 2011 at 5:40 PM, Steve Ed <sediso...@gmail.com> wrote: > I am a newbie to Hadoop and trying to understand how to Size a Hadoop > cluster. **** > > ** ** > > What are factors I should consider deciding the number of datanodes ?**** > > Datanode configuration ? CPU, Memory**** > > Amount of memory required for namenode ? **** > > ** ** > > My client is looking at 1 PB of usable data and will be running analytics > on TB size files using mapreduce.**** > > ** ** > > ** ** > > Thanks**** > > ….. Steve**** > > ** ** > -- --- Get your facts first, then you can distort them as you please.--
