Hi all, I've made some experiments on Hadoop on Amazon EC2. I would like to share the result and any feedback would be appreciated.
Environment: -Xen VM (Amazon EC2 instance ami-ee53b687) -1.7Ghz Xeon CPU, 1.75GB of RAM, 160GB of local disk, and 250Mb/s of network bandwidth (small instance) -Hadoop 0.17.0 -storage: HDFS -Test example: wordcount Experiment 1: (fixed # of instances (8), variant data size (2MB~512MB), # of maps: 8, # of reduces: 8) Data Size(MB) | Time(s) 128 256 512 Experiment 2: Experiment 3: -- Best Regards, Shawn