Hadoop-2.6.0 Eclipse run code case, hadoop2.6.0eclipse

Hadoop-2.6.0 Eclipse run code case, hadoop2.6.0eclipse

 

Case study of Hadoop-2.6.0 Eclipse Running code

1. Create eclipse installation directory eclipse:

 

Copy, install, and decompress eclipse:

Decompress:

 

Decompressed eclipse:

 

Eclipse open interface:

 

 

2. Copy the hadoop-eclipse-plugin-2.6.0.jar to the plug-ins directory in eclipse:

Modify the eclipse permission so that you can copy and paste it manually:

Modified permissions:

Copy it in:

3. Select windows à preperences:

 

The copied plug-in is not displayed because of no restart:

4, restart eclipse, you can see the plug-in just installed, Click Browse to import the hadoop-2.6.0 Directory:

5. Click the "Tian" text box in the upper right corner to export the Map/Reduce Workspace:

 

6. Start Hadoop:

View jps:

7. Set the Port:

Right-click the small blue image and select the first one:

Set port 8020:

 

8. previously created files on HDFS, so there are had created files.

9. Create a Map/reduce project:

Select Project:

Create a Map/Reduce project:

Project name:

 

10. Copy the built-in WordCount code:

 

 

 

 

11. Create a test document on the local hard drive:

Upload to HDFS:

Refresh:

The newly created document is displayed. You can see the content you just wrote:

 

12. Run the Code:

Right-click a Run As a RunConfigurations:

 

13. Set the file input and output path on HDFS:

Separated by spaces:

Hdfs: // localhost: 8020/input/file4.txt hdfs: // localhost: 8020/output/out4.txt

 

Console:

 

 

Generated out4.txt content:

 

14. Running is completed:

 

15. Disable hadoop: