Hi, yes, its loaded from S3. Imho is Amazon AWS Map-Reduce pretty slow. The setup is done pretty fast and there are some configuration parameters you can bypass - for example blocksizes etc. - but in the end imho setting up ec2 instances by copying images is the better alternative.
Kind Regards Hannes On Sun, Mar 4, 2012 at 2:31 AM, Mohit Anchlia <mohitanch...@gmail.com>wrote: > I think found answer to this question. However, it's still not clear if > HDFS is on local disk or EBS volumes. Does anyone know? > > On Sat, Mar 3, 2012 at 3:54 PM, Mohit Anchlia <mohitanch...@gmail.com > >wrote: > > > Just want to check how many are using AWS mapreduce and understand the > > pros and cons of Amazon's MapReduce machines? Is it true that these map > > reduce machines are really reading and writing from S3 instead of local > > disks? Has anyone found issues with Amazon MapReduce and how does it > > compare with using MapReduce on local attached disks compared to using > S3. > --- www.informera.de Hadoop & Big Data Services
