Well, that all depends on many details, but: -) are you really using 4 discs (configured correctly as data directories?)
-) What hdd/connection technology? -) And 77MB/s would match up curiously well with 1Gbit networking cards? So you sure that you are testing a completely local setup? Where's your name node running then? Andreas Am Sonntag, den 03.01.2010, 00:54 +0200 schrieb Stas Oskin: > Hi. > > Can anyone advice on the subject below? > > Thanks! > > On Mon, Dec 28, 2009 at 9:01 PM, Stas Oskin <stas.os...@gmail.com> wrote: > > > Hi. > > > > Going back to the subject, has anyone ever bench-marked small (10 - 20 > > node) HDFS clusters? > > > > I did my own speed checks, and it seems I can reach ~77Mbps, on a quad-disk > > node. This comes to ~19Mbps per disk, which seems quite low in my opinion. > > > > Can anyone advice about this? > > > > Thanks. > >
