Hadoop：键和值在输出文件中分隔。怎么做分号分隔？ [英] Hadoop: key and value are tab separated in the output file. how to do it semicolon-separated?

问题描述

我认为标题已经解释了我的问题。我想更改

 键（标签空间）值
  

into

  key; value 
  

在所有输出文件中，reducers从映射器的输出生成。

我使用谷歌找不到很好的文档。任何人都可以提供一些关于如何实现这一点的代码？

解决方案

设置配置属性 mapred .textoutputformat.separator to ;

I think the title is already explaining my question. I would like to change

key (tab space) value

into

key;value

in all output files the reducers are generating from the output of mappers.

I could not find good documentation on this using google. Can anyone please give a fraction of code on how to achieve this?

解决方案

Set the configuration property mapred.textoutputformat.separator to ";"

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