Hadoop
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多空格&多制表符文本之cut域分割终极方案
问题 ifconfig ens33 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.216.133 netmask 255.255.255.0 broadcast 192.168.216.255 inet6 fe80::250:56ff:fe39:8b4 prefixlen 64 scopeid 0x20<link> eth..原创 2020-07-29 23:33:15 · 458 阅读 · 0 评论 -
java.lang.Exception: java.lang.ClassCastException: org.apache.hadoop.io.BytesWritable cannot be cast
错误异常 java.lang.Exception: java.lang.ClassCastException: org.apache.hadoop.io.BytesWritable cannot be cast to org.apache.hadoop.io.ByteWritable java.lang.Exception: java.lang.ClassCastException: org.apache.hadoop.io.BytesWritable cannot be cast to org.apach原创 2020-07-28 12:32:47 · 3513 阅读 · 0 评论 -
MyEclipse+MapReduce小作业
数据: computer,huangxiaoming,85,86,41,75,93,42,85 computer,xuzheng,54,52,86,91,42 computer,huangbo,85,42,96,38 english,zhaobenshan,54,52,86,91,42,85,75 english,liuyifei,85,41,75,21,85,96,14 algorithm,li...原创 2019-12-18 22:07:12 · 235 阅读 · 0 评论 -
MyEclipse+MapReduce小作业
数据: computer,huangxiaoming,85,86,41,75,93,42,85 computer,xuzheng,54,52,86,91,42 computer,huangbo,85,42,96,38 english,zhaobenshan,54,52,86,91,42,85,75 english,liuyifei,85,41,75,21,85,96,14 algorithm,li...原创 2019-12-18 22:04:11 · 166 阅读 · 0 评论 -
MyEclipse+MapReduce+物品协同过滤
数据集: 1 6 5 887431973 1 10 3 875693118 1 12 5 878542960 1 14 5 874965706 1 17 3 875073198 1 20 4 887431883 1 23 4 875072895 1 24 3 875071713 用户 电影 评分 时间戳 第一个 package org.apache.hadoop.example; import j...原创 2019-12-18 21:13:35 · 310 阅读 · 1 评论 -
MyEclipse+hadoop+去重
package org.apache.hadoop.examples; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop.io.Text; import org.apache.hadoo...原创 2019-12-14 21:22:08 · 226 阅读 · 1 评论 -
MyEclipse+hadoop+气象数据清洗
package org.apache.hadoop.examples; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop.io.LongWritable; import org.apac...原创 2019-12-14 21:21:33 · 413 阅读 · 0 评论 -
MyEclipse+hadoop+排序
package org.apache.hadoop.examples; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop.io.IntWritable; import org.apach...原创 2019-12-14 21:19:28 · 223 阅读 · 0 评论 -
MyEclipse+hadoop+WordCount
package org.apache.hadoop.examples; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.Path; import org.apache.hadoop.io.LongWritable; import org.apa...原创 2019-12-14 21:18:35 · 141 阅读 · 0 评论 -
MyEclipse打包+hadoop运行
原创 2019-12-10 15:21:02 · 137 阅读 · 0 评论
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