Hey, It completely depends on your data sizes and processing. You can have one node cluster to thousands (many more) depending on your needs. Following link may help you.
http://wiki.apache.org/hadoop/HardwareBenchmarks Regards, On Wed, Feb 15, 2012 at 10:17 PM, Jinyan Xu <[email protected]> wrote: > Hi all, > > I want to used hadoop system, but I need a overall system info about > hadoop, for example, > system performance, mem used, cpu utilization and so on. So do anyone have > a system estimate about hadoop? which tool can do this? > > yours > rock -- -- Srinivas [email protected]
