Cloud computing instance-implementation of statistical programs

6.1 read: cloud computing Hadoop configuration http: www.linuxidc.comLinux2011-0943189.htm Hadoop Word Processing Program Main Dialog Box, 6-1:-1HadoopTest Main Dialog Box main control window mainly includes four aspects, it is arranged in the form of Tab labels, including input and output directory settings. Instructions for starting 6.1

Introduction: cloud computing Hadoop configuration http://www.linuxIdC.com/Linux/2011-09/43189.htm

The Main Dialog Box of the Hadoop word processing program, as shown in 6-1:

-1 Hadoop Test Main Dialog Box

The main control window consists of four main aspects, which are arranged in the form of Tab labels, including input and output directory settings, start task labels, View cloud computing task information labels, and view console information labels. Click the corresponding tag to enter the corresponding interface for related operations.

6.1.1 input/output Settings dialog box

The input setting mainly selects the local file or folder for the statistics task. You can select a file as the task input or the entire folder as the task input based on the selection of the single-choice button. The Put button in the middle is used to copy local files to the HDFS file system. Only files on HDFS can be truly used as input for cloud computing tasks. The output setting mainly selects a folder as the output directory of the final result file. Similarly, the final result generated by Hadoop cloud computing should be on the HDFS file system, therefore, relevant processing is required to output the results to the local directory selected by the user. 6-2.

-2 Input and Output Main Dialog Box

1. Enter settings

1) Select a file as input

ClickFileSelect a single button and click "..." The input file button displays a file selector that can only be selected. You only need to find the file to be entered and click OK.

-3. Select the input file.

2) Select a folder as the input.

Do not select the single-choice button for file, and then click "..." The input file button displays a selector that can only select folders. You can select the folder you want to enter and click OK.

-4. Select the Input Folder.

2. copy the file to the HDFS system.

You have selected an Input file or folder, and the Input path name is displayed in the Input path. Click the Put button to copy the local file to the HDFS File System for cloud computing tasks. The message dialog box shown in-5 indicates that the file is copied successfully.

-5 copy an object

3. output settings

You can select an output path only when your input file is successfully copied to the HDFS file system. Click "..." Select the output path and select the corresponding directory as the final result output. 6-6.

-6 Output path settings

Click"SuBmit "submit button, the Program sets the user's output path to the program. A time-related folder is randomly generated in the user output directory to store the final result of the task, as shown in 6-7.

-7 submit settings