Windows 7 builds with the Hadoop application development environment under eclipse

For some reason, this section of the content until now to write, in fact, to get Hadoop for some time, you can write some small programs, today or to say the environment of the building ....

Note: The steps in this article are followed by an article on the Hadoop article: http://blog.csdn.net/enson16855/article/details/37725771, if you did not install Hadoop as described in the previous article, There may be some mistakes ~ Baidu will be able to solve the ha ~

Preparation environment:

Needless to say, I use the Eclipse version is the latest Java EE version, called What Lua Kepler, originally used Juno, because the operating system re-installed, Wood has a way ~

Hadoop does not have to say, reference: http://blog.csdn.net/enson16855/article/details/37725771

Tool Download: Link: http://pan.baidu.com/s/1pJt1RfH Password: r9lu

1. Configuration of Hadoop

Unzip a Hadoop compressed file into a specified directory below Windows

Copy the Hadoop.dll to the C:\Windows\System32 folder, and then copy the Hadoop.dll and Winutils.exe to the bin directory of Hadoop:

2, Hadoop-eclipse-plugin installation configuration

Copy the downloaded Hadoop-eclipse-plugin-2.4.0.jar to the Dropins folder in Eclipse:

Restart Eclipse,

Open Window-->preferens and you will find the Hadoop map/reduce option, in which you need to configure Hadoop installation directory. Exit after configuration is complete.

Configure Hadoop connection information:

Select Windows---open perspective, other ..., select the Map/reduce with the elephant icon, and the Map/reduce development environment opens. You can see that there is a Map/reduce locations box in the lower-right corner.

Right-click-->new Hadoop location in the blanks

Configuration Complete Click Finish to do it.

Complete, you can refer to the previous blog post the first picture to see the effect ha ~