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.
The mapper output (intermediate data) is stored on the Local file system (NOT HDFS) of each individual mapper nodes. This is typically a temporary directory location which can be setup in config by the hadoop administrator. The intermediate data is cleaned up after the Hadoop Job completes.
The following function opens a MIDI sequencer device, verifies that the MIDI Mapper was selected as the output port, plays the MIDI file specified by the lpszMIDIFileName parameter, and closes the device after playback is complete: