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).
Where are my local worlds stored? I'm creating an adventure map at the moment, and I'd also like to play adventure maps others have made - but I have no idea where on my hard drive Minecraft stores the worlds. I have Windows XP and I use the offline client (Minecraft.exe, located in my quick launch bar) to play. On Windows, your minecraft saves data is in your application data folder. You can access this in XP by holding Windows+R or hitting Start > Run and then typing %appdata%\.minecraft in the box. In Vista & 7, enter %appdata%\Roaming\.minecraft instead. This will open your minecraft folder.