Eclipse Run WordCount Steps

Eclipse Run WordCount Steps

The first step: Build the project and import the code.

Step Two: Create a file to write the data (separated by a space) and upload it to HDFs.

1. Create the file and write the data:

2. Uploading HDFs

On the line under Hadoop permissions:

Command: Hadoop fs-put new file path input directory

such as: Hadoop fs-put/home/hadoop/input/text03 input

View all HDFs files

Command:hadoop fs-ls input

After the upload is successful, you can see it in Eclipse Engineering space:

In the Hadoop folder, the operation under the Hadoop permissions is usually in the root folder.

3. Set the eclipse input/output path,

The input path is the path that was just uploaded to HDFs, and the output path is set directly.

3.1, right-click Project:

3.2 Input Path: The input path is separated from the output path by a space.

Note: If this is not found, the input path is prepended with hdfs://localhost:9000

hdfs://localhost:9000/user/hadoop/input/text03 hdfs://localhost:9000/user/hadoop/output/text03b

3.3 Running the Code

Click Run and the following appears in the console:

Nth Run

Run for the first time:

3.4 Statistical results

This is the end of the run.

Eclipse Run WordCount Steps