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Import HDFS Data into SQL Server using SSIS

Easily back up HDFS data to SQL Server using the SSIS components for HDFS.

Using SQL Server as a backup for critical business data provides an essential safety net against loss. Backing up data to SQL Server enables business users to more easily connect that data with features like reporting, analytics, and more.

This example demonstrates how to use the CData SSIS Tasks for HDFS inside of a SQL Server SSIS workflow to transfer HDFS data into a Microsoft SQL Server database.

Add the Components

To get started, add a new HDFS source and SQL Server ADO.NET destination to a new data flow task.

Create a New Connection Manager

Follow the steps below to save HDFS connection properties in a connection manager.

  1. In the Connection Manager window, right-click and then click New Connection. The Add SSIS Connection Manager dialog is displayed.
  2. In the Connection Manager type menu, select HDFS. The CData HDFS Connection Manager is displayed.
  3. Configure connection properties.

    In order to authenticate, set the following connection properties:

    • Host: Set this value to the host of your HDFS installation.
    • Port: Set this value to the port of your HDFS installation. Default port: 50070

Configure the HDFS Source

Follow the steps below to specify the query to be used to extract HDFS data.

  1. Double-click the HDFS source to open the source component editor.
  2. In the Connection Manager menu, select the connection manager previously created.
  3. Specify the query to use for the data extraction. For example: SELECT FileId, ChildrenNum FROM Files WHERE FileId = '119116'
  4. Close the HDFS Source control and connect it to the ADO.NET Destination.

Configure the SQL Server Destination

Follow the steps below to specify the SQL server table to load the HDFS data into.

  1. Open the ADO.NET Destination and add a New Connection. Enter your server and database information here.
  2. In the Data access mode menu, select "table or view".
  3. In the Table Or View menu, select the table or view to populate.
  4. Configure any properties you wish to on the Mappings screen.

Run the Project

You can now run the project. After the SSIS Task has finished executing, your database will be populated with HDFS data.