What exactly is this keyword Context in Hadoop MapReduce world in new API terms? Its extensively used to write output pairs out of Maps and Reduce, however I am not sure if it can be used somewhere else and what’s exactly happening whenever I use context. Is it a Iterator with different name? What is … Read more
Where is the classpath for hadoop set? When I run the below command it gives me the classpath. Where is the classpath set? I’m using hadoop 2.6.0
Map reduce is a framework that was developed to process massive amounts of data efficiently. For example, if we have 1 million records in a dataset, and it is stored in a relational representation – it is very expensive to derive values and perform any sort of transformations on these. For Example In SQL, Given … Read more