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OverviewcatchgrpchmodchowncopyFromLocalcopyToLocalcountcpdudusexpungegetgetmergelslsrmkdirmoveFromLocalmoveToLocalmvputrmrmrsetrepstattailtesttexttouchzOverviewThe FileSystem (FS) shell is invoked bybin/hadoop fs <args>. All FS shell commands take path URIs as arguments. The URI format isschem 阅读全文
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这是Hadoop学习全程记录第2篇，在这篇里我将介绍一下如何在Eclipse下写第一个MapReduce程序。新说明一下我的开发环境：操作系统：在windows下使用wubi安装了ubuntu 10.10hadoop版本：hadoop-0.20.2.tar.gzEclipse版本：eclipse-jee-helios-SR1-linux-gtk.tar.gz为了学习方便这个例子在“伪分布式模式”Hadoop安装方式下开发。第一步，我们先启动Hadoop守护进程。如果你读过我第1篇文章Hadoop学习全程记录——hadoop 入门应该比较清楚在“伪分布式模式”下启动Hadoop守护进程的方法，在 阅读全文
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Chances are good if you are a just starting out software engineer knowing MapReduce inside and out is as important now as knowing how to configure a LAMP stack was in the last decade. Therefore most developers will want to have a local instance to learn and experiment without having to go down the r 阅读全文