MapReduce and Hadoop streaming API

• Matrix Multilication program on the hadoop architecture using Python

Input format

• semi-colon(;) separated rows
• space(' ') separated columns
• next-line (\n) end of martix
• example : 1 2 3;5 6 7 \n 2 3 3;0 9 0;4 5 6

Output format

• key: row number,column number
• value: value of element at key

Run (hadoop-3.2.2)

	$ bin/hadoop jar share/hadoop/tools/lib/hadoop-streaming-3.2.2.jar \
	-file /path/to/mapper.py    -mapper /path/to/func/mapper.py \
	-file /path/to/reducer.py   -reducer /path/to/func/reducer.py \
	-input /path/to/input/* 	-output /path/to/output