Develop a concept map on the Hadoop ecosystem and provide a detailed explanation of each component. "A concept map or conceptual diagram is a diagram that depicts suggested relationships between concepts. It is a graphical tool that designers, engineers, technical writers, and others use to organize and structure knowledge. In this concept map also include data science and big data analytics and various databases such as ( SQL, NoSQL etc) A concept map typically represents ideas and information as boxes or circles, which it connects with labeled arrows in a downward-branching hierarchical structure. The relationship between concepts can be articulated in linking phrases such as causes, requires, or contributes to." (from: http://en.wikipedia.org/wiki/Concept_map)