hadoop

apache

hadoopFile

JavaSparkContext SparkContext

HadoopMapReduceUtil

mapreduce

HadoopMapRedUtil

mapred

hadoopRDD

JavaSparkContext rdd SparkContext

HadoopWriter

mapred

hashCode

Aggregator Split

HashPartitioner

spark

high

BoundedDouble

html

common master worker

httpFileServer

SparkEnv