Connecting to a MySQL® cluster from DataLens
Yandex DataLens is a business intelligence service, that lets you upload, process and visualize data for analysing and testing hypotheses. It can help you make marketing decisions for your product.
To use an existing cluster as a data source for Yandex DataLens:
- Activate DataLens.
- Enable access to the cluster from DataLens.
- Create a cluster connection in DataLens.
Activating DataLens
Limit
You can only create one DataLens instance in the cloud.
- In the management console, go to the folder page.
- Select DataLens.
- Click Activate DataLens.
The DataLens instance will be activated in the selected folder.
Allowing access to a cluster from DataLens
To enable DataLens to connect to your cluster and work with its data, activate the DataLens access option when creating a cluster or updating its settings.
Creating a connection to a cluster
-
Make sure that DataLens is activated in the appropriate folder and you can access the cluster from it.
-
Go to the folder page and select Managed Service for MySQL.
-
Click the cluster name and open the DataLens tab.
-
Click Create connection.
I have no "Create connection" button
If you see a message saying "DataLens not activated" instead of the Create connection button, it means that you either did not activate DataLens or connected it in a different folder. To connect your cluster to a DataLens instance from another folder, follow the guide in the DataLens documentation.
-
Specify the connection settings.
-
In the top-right corner, select the connection scope from the drop-down list:
- Available only to me.
- Available to the company.
-
Check that the settings are correct by clicking Check connection.
-
If they are, click Create connection.
-
Specify a name for the connection.
-
Click Create.
Once the connection is created, you can:
- Update or delete the connection.
- Create datasets with cluster data using the connection.
- Visualize the datasets using charts and dashboards.
Viewing a list of cluster connections
- Go to the folder page and select Managed Service for MySQL.
- Click the cluster name and open the DataLens tab.
Updating a cluster connection
- Go to the folder page and select Managed Service for MySQL.
- Click the cluster name and open the DataLens tab.
- Select a connection from the list.
- Edit the connection settings and scope.
- Check that the settings are correct by clicking Check connection.
- After successfully checking the connection, click Save.
Deleting a cluster connection
- Go to the folder page and select Managed Service for MySQL.
- Click on the name of the cluster and select the DataLens tab.
- Select a connection from the list.
- Click at the top of the page and select Delete.
- In the window that opens, click Delete.
Connection settings
If the cluster and DataLens are in the same folder:
- Open the Select in folder tab.
- Select the cluster and its host from the drop-down lists or create a new cluster in the folder with DataLens by clicking Create new.
- Select the database and user from the drop-down lists.
- Enter the user password. See also Creating a MySQL® connection and Configuring access in the DataLens documentation.
If the cluster and DataLens are in different folders:
- Go to the Specify manually tab.
- Use the settings from the tutorial in the DataLens documentation.