MapReduce的并行处理模式给自己增添了各种问题。虽然Java常用于MapReduce程序，你不见得非要成为Java专家才能享受到Hadoop上MapReduce的好处。 三种 MapReduce开发的替代方法包括Pig, streaming MapReduce和域特定语言，比如Scalding。 Pig是一种Hadoop下不借助Java而处理大数据的平台。

I gave an introductory talk on Hadoop yesterday at the Visual Studio Live! conference in Las Vegas. During the talk, I discussed how Hadoop Streaming, a utility which allows arbitrary executables to ...

Google and its MapReduce framework may rule the roost when it comes to massive-scale data processing, but there’s still plenty of that goodness to go around. This article gets you started with Hadoop, ...

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各位前辈，小弟新学Mapreduce根据资料写了个wordcount想试一下 但是打了jar包放到集群上跑不通，下边是我的代码和服务器报的空指针异常错误，请各位大哥帮我看下非常感谢。 服务器日志错误： Error: java.lang.NullPointerException at com.hadoop.WordCountMapper.map(WordCountMapper ...

Hadoop is the most significant concrete technology behind the so called “Big Data” revolution. Hadoop combines an economical model for storing massive quantities of data – the Hadoop Distributed File ...