Optimizing Hadoop Performance for Big Data Analytics in Smart Grid

Table 1

Hadoop core parameters as GEP variables.

GEP variables	Hadoop parameters	Default values	Data types
0	io.sort.factor	10	Integer
1	io.sort.mb	100	Integer
2	io.sort.spill.percent	0.80	Float
3	mapred.reduce.tasks	1	Integer
4	mapreduce.tasktracker.map.tasks.maximum	2	Integer
5	mapreduce.tasktracker.reduce.tasks.maximum	2	Integer
6	mapred.child.java.opts	200	Integer
7	mapreduce.reduce.shuffle.input.buffer.percent	0.70	Float
8	mapred.inmem.merge.threshold	1000	Integer
9	Input data size (number of samples/MB)	User	Integer