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).
The main window of Action! will hide and Action! will switch to the desktop region recording mode. Use mouse to select your region size and position. You can precisely control region size and position with the keyboard: use arrows to move a region, use SHIFT + arrows to resize a region.