하둡데이터접근

Hive를 통한 HDFS접속(R->Hive->HDFS)

library(rJava)library(RJDBC)library(DBI) Sys.setenv("HADOOP_CMD"="/usr/hdp/2.3.2.0-2950/hadoop/bin/hadoop")Sys.setenv("HADOOP_HOME"="/usr/hdp/2.3.2.0-2950/hadoop")Sys.setenv("HADOOP_PREFIX"="/usr/hdp/2.3.2.0-2950/hadoop")Sys.setenv("HADOOP_CONF_DIR"="/usr/hdp/2.3.2.0-2950/hadoop/conf")Sys.setenv("HIVE_HOME"="/usr/hdp/current/hive-client/lib") options( java.parameters = "-Xmx8g" ) # 데이터 용량에 따라 변경