Earning Points. Starwood's Preferred Guest program is fairly straightforward: the more nights you spend at participating hotels, the faster you'll earn a free night.
As seen in the EXECUTING phase, the map will write (using Mapper.Context.write()) its output into a circular in-memory buffer (MapTask.MapOutputBuffer). The size of this buffer is fixed and determined by the configuration parameter mapreduce.task.io.sort.mb (default: 100MB).
MAPICS is commercial ERP software used to control the operations of manufacturing companies. Its name is an acronym for Manufacturing, Accounting and Production Information Control Systems. MAPICS was created by IBM, International Business Machines, but the product is now owned by Infor Global Solutions and branded 'Infor ERP XA'.