hadoop 2中的hadoop jar文件在哪里？ [英] Where are hadoop jar files in hadoop 2?

问题描述

我正在尝试使用Hadoop实现一个示例字计数程序。我已下载并安装了 Hadoop 2.0.0 。我想使用Eclipse做这个示例程序，因为我以后在我的实际项目中想到我只需要使用Eclipse。

I am trying to implement one sample word count program using Hadoop. I have downloaded and installed Hadoop 2.0.0. I want to do this sample program using Eclipse because i think later in my real project I have to use Eclipse only.

我无法找到Hadoop相关的jar文件，如 hadoop-core.jar 和其他必需的jar文件。我在2.0的所有文件夹中搜索hadoop但找不到这些文件。这些相同的文件在1.0版本的Hadoop中可用，但不在2.0版本中。我想知道我可以在哪里获取这些文件？

I am not able to find Hadoop related jar files like hadoop-core.jar and other required jar files. I searched in all the folders of 2.0 hadoop but couldn't find those files. Those same files are available in 1.0 version of Hadoop but not in 2.0 version. I would like to know where can I get these files?

我无法找到有关2.0版本的许多信息。

I am not able to find much information about 2.0 version.

请帮助

推荐答案

其实我刚开始面临类似的问题。显然，版本2没有 hadoop-core.jar 。你必须下载Hadoop Common 和 MapReduce Client Core ，并使用它们。我相信会解决你的问题。希望这有帮助！

Actually, I faced a similar issue in the beginning. Apparently, there is no hadoop-core.jar for version 2. You'll have to download the Hadoop Common and MapReduce Client Core jars and use them both. I am sure it'll solve your problems. Hope this helps!

编辑：我刚刚更新了链接，以便人们可以从存储库中选择适当的版本，因为我们现在已经过去了初始版本2。

I just updated the links such that people can choose the appropriate version from the repository since we now come way past the initial version 2.

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