2018年1月5日
跟踪wordcount计数器的运行信息
摘要： 1、mapper类package com.cr.wordcount;import org.apache.hadoop.io.IntWritable;import org.apache.hadoop.io.LongWritable;import org.apache.h... 阅读全文
posted @ 2018-01-05 17:27 crr121 阅读(118) 评论(0) 推荐(0)
跟踪wordcount计数器的运行信息
摘要： 1、mapper类package com.cr.wordcount;import org.apache.hadoop.io.IntWritable;import org.apache.hadoop.io.LongWritable;import org.apache.h... 阅读全文
posted @ 2018-01-05 17:27 crr121 阅读(105) 评论(0) 推荐(0)
运行wordcount的时候显示INFO mapreduce.Job: map 0% reduce 0%
摘要： 错误提示：[xiaoqiu@s150 /home/xiaoqiu]$ hadoop jar wordcounter.jar com.cr.wordcount.WordcountApp hdfs://s150/user/xiaoqiu/data/wc.txt hdfs:... 阅读全文
posted @ 2018-01-05 16:03 crr121 阅读(1096) 评论(0) 推荐(0)
运行wordcount的时候显示INFO mapreduce.Job: map 0% reduce 0%
摘要： 错误提示：[xiaoqiu@s150 /home/xiaoqiu]$ hadoop jar wordcounter.jar com.cr.wordcount.WordcountApp hdfs://s150/user/xiaoqiu/data/wc.txt hdfs:... 阅读全文
posted @ 2018-01-05 16:03 crr121 阅读(356) 评论(0) 推荐(0)