Hadoop
关注
分享
扫一扫
个人总结
め追光者
这个作者很懒，什么都没留下…
展开
-
多空格&多制表符文本之cut域分割终极方案
问题ifconfig ens33ens33: 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 · 427 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.ByteWritablejava.lang.Exception: java.lang.ClassCastException: org.apache.hadoop.io.BytesWritable cannot be cast to org.apach原创 2020-07-28 12:32:47 · 3469 阅读 · 0 评论 -
MyEclipse+MapReduce小作业
数据：computer,huangxiaoming,85,86,41,75,93,42,85computer,xuzheng,54,52,86,91,42computer,huangbo,85,42,96,38english,zhaobenshan,54,52,86,91,42,85,75english,liuyifei,85,41,75,21,85,96,14algorithm,li...原创 2019-12-18 22:07:12 · 210 阅读 · 0 评论 -
MyEclipse+MapReduce小作业
数据：computer,huangxiaoming,85,86,41,75,93,42,85computer,xuzheng,54,52,86,91,42computer,huangbo,85,42,96,38english,zhaobenshan,54,52,86,91,42,85,75english,liuyifei,85,41,75,21,85,96,14algorithm,li...原创 2019-12-18 22:04:11 · 146 阅读 · 0 评论 -
MyEclipse+MapReduce+物品协同过滤
数据集：1 6 5 8874319731 10 3 8756931181 12 5 8785429601 14 5 8749657061 17 3 8750731981 20 4 8874318831 23 4 8750728951 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 · 285 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 · 185 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 · 337 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 · 202 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 · 119 阅读 · 0 评论 -
MyEclipse打包+hadoop运行
原创 2019-12-10 15:21:02 · 116 阅读 · 0 评论