1.  What is Hadoop MapReduce? A.) For processing large datasets in parallel across hadoop cluster, hadoop mapReduce framework is used. 2.  What are the difference between relational database and HDFS? There are 6 major categories we can define RDMBS and HDFS. They areData TypesprocessingSchema on read Vs WriteRead/write speed cost Best fit use case RDBMSHDFS1. ... Continue Reading →