Create a Real-Time Dataset Through HBase

Prerequisites

• A tag project for the dataset is created. For more information, see .

• An HBase data source for the real-time dataset is created. For more information, see .

Procedure

1. Navigate to the Dataphin home page and click Tag -> Tag Workbench from the top menu bar.

2. Proceed as follows to access the Add Real-time Dataset dialog box:

   Select Tag Project -> click Real-time Dataset -> click Add Dataset.

   

3. In the Add Real-time Dataset dialog box, select Hbase Dataset.

4. On the Add Hbase configuration page, input the basic information and establish the processing logic for the dataset.

• Basic Information

Parameter	Description
Dataset Name	Enter the dataset name. The name can contain Chinese and English characters, numbers, and underscores (_), up to 64 characters.
Dataset Code	Enter a unique identifier for the dataset. The identifier must start with a letter and can contain lowercase letters, numbers, and underscores (_), up to 64 characters.
Owner	Select the owner of the real-time dataset.
Description	Provide a brief description of the real-time dataset, limited to 1000 characters.

• Processing Logic.

Parameter	Description
Data Source	Select the HBase data source. If none is available, create one first. For more information, see .
Source Table	Select the source table from the HBase data source to process.
RowKey Configuration Rule	Set up the RowKey rule. RowKey expressions support functions and variables: For Variable, use ${} to enclose it. For example, ${variable}. For String Constant, use quotation marks "". For example, "hello world". Function: The md5() function takes a string as a parameter. For example, md5("hello word") or md5({user_id}). For Expression, use the plus sign + to concatenate strings. For instance, ${user_id} + "hello world".
Entity	After setting the RowKey configuration rule, click Entity Parsing to parse the entity list. Specify the Primary Key Name and Value Type, which can be String or Long Integer.
Metric Configuration	Define the metric by specifying the column family name, field name, field type, metric display name, value type, and a brief description. Supported value types include String, Long Integer, Double Precision Floating-Point Number, Date, Boolean, Decimal. To configure additional metrics, click + Add.

5. To finalize the creation of the real-time dataset, click Publish.

Note

After saving, click Authenticate to test the processing logic with parameter values.

What to do next

After creating and publishing the real-time dataset, create the corresponding real-time tags. For more information, see .