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.
Custom Text Input Format Record Delimiter for Hadoop. By default mapreduce program accepts text file and it reads line by line. Technically speaking the default input format is text input format and the default delimiter is â/nâ (new line). In several cases, we need to override this property.