我已经设置了hadoop\u cmd（hadoop path）变量，但是它没有选择路径，比如说as not found
library("rhdfs")
hdfs.init()
Sys.setenv(HADOOP_CMD="C:/cygwin64/usr/local/hadoop/bin/hadoop")
Error in system(command, intern = TRUE) :
'C:/cygwin64/usr/local/hadoop/bin/hadoop' not found我在systemenv变量和cygwin中都定义了hadoop\ucmd
export HADOOP_CMD="C:/cygwin64/usr/local/hadoop/bin/hadoop"我哪里错了，这方面有什么帮助吗，谢谢。
1条答案
按热度按时间kb5ga3dv1#
HADOOP_HOME&HADOOP_CMD应在r会话中设置，然后调用hdfs.init()还记得在启动rhadoop之前遵循检查点r-hadoop依赖项
rmr2-
RCpp, RJSONIO, digest, functional, stringr, plyrrhdfs-rJava在运行之前导出r会话中的环境变量init()
# requied Sys.setenv(HADOOP_HOME="/home/trendwise/apache/hadoop-1.0.4"); Sys.setenv(HADOOP_CMD="/home/trendwise/apache/hadoop-1.0.4/bin/hadoop"); Sys.setenv(HADOOP_STREAMING='/home/trendwise/apache/hadoop-1.0.4/contrib/streaming/hadoop-streaming-1.0.4.jar')#optional Sys.setenv(HADOOP_BIN="/home/trendwise/apache/hadoop-1.0.4/bin"); Sys.setenv(HADOOP_CONF_DIR="/home/trendwise/apache/hadoop-1.0.4/conf"); Sys.setenv(HIVE_HOME="/home/trendwise/apache/hive-0.10.0"); Sys.setenv(HBASE_HOME="/home/trendwise/apache/hbase-0.94.3");# Library Path Sys.setenv(LD_LIBRARY_PATH="/lib:/lib/x86_64-linux-gnu:/lib64:/usr/lib:/usr/lib64:/usr/local/lib:/usr/local/lib64:/usr/lib/jvm/jdk1.7.0_10/lib:/usr/lib/jvm/jdk1.7.0_10/jre/lib:/usr/lib/jvm/jdk1.7.0_10/jre/lib/amd64:/usr/lib/jvm/jdk1.7.0_10/jre/lib/amd64/server");# Loading library library(rmr2) library(rhdfs)# initializing hdfs.init()