我试图运行WordCount example。但是我正在编译程序时遇到问题。无法执行基本的Hadoop Mapreduce Wordcount示例
我得到的错误:
error: package org.apache.hadoop.mapred does not exist
执行后:
javac -classpath /usr/local/hadoop/share/hadoop/common/hadoop-common-2.7.3.jar -d wordcount_classes WordCount.java
我成立了Hadoop的使用这个tutorial。 我也看了这个在stackoverflow:question并在/usr/local/hadoop
执行bin/hadoop classpath
命令。这是我得到的输出:
/usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/* :/usr/local/hadoop/share/hadoop/common/* :/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/* :/usr/local/hadoop/share/hadoop/hdfs/* :/usr/local/hadoop/share/hadoop/yarn/lib/* :/usr/local/hadoop/share/hadoop/yarn/* :/usr/local/hadoop/share/hadoop/mapreduce/lib/* :/usr/local/hadoop/share/hadoop/mapreduce/* :/contrib/capacity-scheduler/*.jar
但我不知道该怎么做,或者我的下一步应该是什么!请帮忙!