标签：image info png share bubuko 分享 mapreduce use amp
需要删除可能存在的output目录
删除的命令是：bin/hdfs dfs -rm -r /user/luchi/output
bin/hdfs dfs -rm -r /user/luchi/output
./bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar grep input output 'dfs[a-z.]+'报错
原文地址：https://www.cnblogs.com/wxd136/p/9743729.html
