从CDH4 jar文件构建Hadoop Ecplise库 [英] Build a Hadoop Ecplise Library from CDH4 jar files

问题描述

我正在尝试构建一个Hadoop库，包含我需要在Eclipse中构建map / reduce作业所需的所有jar文件。

什么是我需要的.jar文件，以及在Ubuntu上安装Hadoop时单个节点安装CDH4的文件夹？

<假设你已经从 https://ccp.cloudera.com/display/SUPPORT/CDH4+Downloadable+Tarballs

1. 解开压缩包



2. 在解压后的目录中找到 build.properties 文件：

   
   
   

   hadoop-2.0.0-cdh4.0.0 / src / hadoop-mapreduce-project / src / contrib / eclipse-plugin




3. 在您的eclipse安装目录中为此文件添加一个属性：
   $ b

   eclipse.home = / opt / eclipse / jee-indigo-SR2



4. 最后运行 ant hadoop-2.0.0-cdh4.0.0 / src / hadoop-mapreduce-project 目录构建jar

现在，您将在 hadoop-2.0.0-cdh4.0.0 / src / hadoop-mapreduce-project / build / contrib / eclipse-plugin / b
$ b

为了最终回答你的问题，依赖关系的罐子现在在：

• hadoop-2.0.0-cdh4.0.0 / src / hadoop-mapreduce-project / build / contrib / eclipse-plugin /

如果您需要列表，请仔细阅读这篇 pastebin

I am trying to build a Hadoop library of all the jar files that I need to a build map/reduce job in Eclipse.

What are the .jar files that I need AND from what folders of the single node install of CDH4 when installed Hadoop on Ubuntu?

解决方案

Assuming you've downloaded the CDH4 tarball distro from https://ccp.cloudera.com/display/SUPPORT/CDH4+Downloadable+Tarballs

1. Unpack the tarball

2. locate the build.properties file in the unpacked directory:

   hadoop-2.0.0-cdh4.0.0/src/hadoop-mapreduce-project/src/contrib/eclipse-plugin

3. Add a property to this file for your eclipse installation directory:

   eclipse.home=/opt/eclipse/jee-indigo-SR2

4. Finally run ant from the hadoop-2.0.0-cdh4.0.0/src/hadoop-mapreduce-project directory to build the jar

You'll now have a jar in the hadoop-2.0.0-cdh4.0.0/src/hadoop-mapreduce-project/build/contrib/eclipse-plugin/ folder

To finally answer your question, the dependency jars are now in:

• hadoop-2.0.0-cdh4.0.0/src/hadoop-mapreduce-project/build/contrib/eclipse-plugin/

And to be really verbose if you want the list, see this pastebin

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