1. General 1.1. What is Hadoop? Hadoop is a distributed computing platform written in Java. It incorporates features similar to those of the Google File System and of MapReduce. For some details, see HadoopMapReduce. 1.2. What platforms and Java versions does Hadoop run on? Java 1.6.x or higher, preferably from Sun -see HadoopJavaVersions Linux and Windows are the supported operating systems, but