Hi Michael, so are you recommanding 32Gb per node?
What about the disks? SATA drives are to slow? JM 2012/11/26, Michael Segel <[email protected]>: > Uhm, those specs are actually now out of date.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 <[email protected]> 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 OrtÃz 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 > >
