Описание тега outputformat

For questions relating to the format of an output from a hadoop reducer

There are several output formats that come with hadoop (TextOutputFormat, FileOutputFormat, SequencialFileOutputFormat, for example). Each output format class has as its primary responsibility the construction of a RecordWriter to which is delegated the behavior of actually storing output data by the hadoop Context.

Other output formats are provided by third party vendors, such as for specific NoSQL databases like MongoDB or Cassandra.