Hi, 1 - The map output files are always of the type SequenceFileFormat?
2 - The means that it contains a header with the following files? # version - A byte array: 3 bytes of magic header 'SEQ', followed by 1 byte of actual version no. (e.g. SEQ4 or SEQ6) # keyClassName - String # valueClassName - String # compression - A boolean which specifies if compression is turned on for keys/values in this file. # blockCompression - A boolean which specifies if block compression is turned on for keys/values in this file. # compressor class - The classname of the CompressionCodec which is used to compress/decompress keys and/or values in this SequenceFile (if compression is enabled). # metadata - SequenceFile.Metadata for this file (key/value pairs) # sync - A sync marker to denote end of the header. Thanks, -- Pedro