hadoop mapreduce编程的相关内容

Hadoop MapReduce编程 API入门系列之挖掘气象数据版本2（十）

　这篇博文，包括了，实际生产开发非常重要的，单元测试和调试代码。这里不多赘述，直接送上代码。 MRUnit 框架 MRUnit是Cloudera公司专为Hadoop MapReduce写的单元测试框架，API非常简洁实用。MRUnit针对不同测试对象使用不同的Driver： ...

Hadoop MapReduce编程 API入门系列之MapReduce多种输入格式（十七）

&nb...

大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第一阶段

33 课时 |

283 人已学 |

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大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第二阶段

28 课时 |

248 人已学 |

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大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第三阶段

25 课时 |

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Hadoop MapReduce编程 API入门系列之统计学生成绩版本2（十八）

　　这里，为了空格符的差错，直接，我们有时候，像如下这样的来排数据。 &nb...

Hadoop MapReduce编程 API入门系列之倒排索引（二十四）

2016-12-12 21:54:04,509 INFO [org.apache.hadoop.metrics.jvm.JvmMetrics] - Initializing JVM Metrics with processName=JobTracker, sessionId= 2016-12-12 ...

Hadoop MapReduce编程 API入门系列之FOF（Fund of Fund）

代码 ...

Hadoop MapReduce编程 API入门系列之压缩和计数器（三十）

生成的结果，作为输入源。 &nbs...

Hadoop MapReduce编程 API入门系列之wordcount版本1（五）

　　这个很简单哈，编程的版本很多种。代码版本1 1 package zhouls.bigdata.myMapReduce.wordcount5; 2 3 import java...

Hadoop MapReduce编程 API入门系列之wordcount版本2（六）

代码 1 package zhouls.bigdata.myMapReduce.wordcount4; 2 3 import java.io.IOException; 4 5 import org.apache.hadoop.io.IntWritable; ...

Hadoop MapReduce编程 API入门系列之多个Job迭代式MapReduce运行（十二）

　　执行 2016-12-12 15:07:51,762 INFO [org.apache.hadoop.metrics.jvm.JvmMetrics] - Initializing JVM Metrics with processName=JobTracker, sessionId=...

Hadoop MapReduce编程 API入门系列之自定义多种输入格式数据类型和排序多种输出格式（十一）

自定义输入格式，将明星微博数据排序后按粉丝数关注数微博数分别输出到不同文件中。代码 1 package...

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