great thanks Jagat ! On Fri, Mar 23, 2012 at 1:42 AM, Jagat <[email protected]> wrote:
> Hi Jay > > Just follow this to install > > http://jugnu-life.blogspot.in/2012/03/hadoop-installation-tutorial.html > > The official tutorial at link below is also useful > > http://hadoop.apache.org/common/docs/r1.0.1/single_node_setup.html > > Thanks > > Jagat > > On Fri, Mar 23, 2012 at 12:08 PM, Jay Vyas <[email protected]> wrote: > > > Hi guys : What the latest, simplest, best directions to get a tiny, > > psuedodistributed hadoop setup running on my ubuntu machine ? > > > > On Wed, Mar 21, 2012 at 5:14 PM, <[email protected]> wrote: > > > > > Owen, > > > > > > Is there interest in reverting hadoop-2399 in 0.23.x ? > > > > > > - Milind > > > > > > --- > > > Milind Bhandarkar > > > Greenplum Labs, EMC > > > (Disclaimer: Opinions expressed in this email are those of the author, > > and > > > do not necessarily represent the views of any organization, past or > > > present, the author might be affiliated with.) > > > > > > > > > > > > On 3/19/12 11:20 PM, "Owen O'Malley" <[email protected]> wrote: > > > > > > >On Mon, Mar 19, 2012 at 11:05 PM, madhu phatak <[email protected]> > > > >wrote: > > > > > > > >> Hi Owen O'Malley, > > > >> Thank you for that Instant reply. It's working now. Can you explain > > me > > > >> what you mean by "input to reducer is reused" in little detail? > > > > > > > > > > > >Each time the statement "Text value = values.next();" is executed it > > > >always > > > >returns the same Text object with the contents of that object changed. > > > >When > > > >you add the Text to the list, you are adding a pointer to the same > Text > > > >object. At the end you have 6 copies of the same pointer instead of 6 > > > >different Text objects. > > > > > > > >The reason that I said it is my fault, is because I added the > > optimization > > > >that causes it. If you are interested in Hadoop archeology, it was > > > >HADOOP-2399 that made the change. I also did HADOOP-3522 to improve > the > > > >documentation in the area. > > > > > > > >-- Owen > > > > > > > > > > > > -- > > Jay Vyas > > MMSB/UCHC > > > -- Jay Vyas MMSB/UCHC
