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).
Activating Tooltip Controls. A tooltip control can be either active or inactive. When it is active, the tooltip text appears when the mouse pointer is on a tool. When it is inactive, the tooltip text does not appear, even if the pointer is on a tool.