Page 86 - Multicloud Workshop - Prework
P. 86

Different Structures















        In Commercial IT we have structured data and query and save


                 to a database. When we want to tackle bigdata projects,


                rather than centralising the data we spread it out. In this

          illustration, we have a client with a query. The data is spread


            across a number of nodes and the name node manages the


          spread of the data and data locations. The master node deals


           with the query and submits jobs to each slave node to query


            their local dataset. The master node collates the results and

                                                   returns the answer to the client.














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