问题
Our hadoop cluster using snappy as default codec. Hadoop job reduce output file name is like part-r-00000.snappy. JSnappy fails to decompress the file bcz JSnappy requires the file start with SNZ. The reduce output file start with some bytes 0 somehow.
How could I decompress the file?
回答1:
Use "Hadoop fs -text" to read this file and pipe it to txt file. ex:
hadoop fs -text part-r-00001.snappy > /tmp/mydatafile.txt
来源：https://stackoverflow.com/questions/19805149/how-to-decompress-the-hadoop-reduce-output-file-end-with-snappy