Creating a Greenplum® connection
Warning
When connecting an external database which is not a Yandex Cloud resource:
-
Make sure the database uses an SSL certificate signed by a SSL certificate authority. You will not be able to create a connection in DataLens if the database uses a self-signed SSL certificate.
-
Grant database access to the following DataLens IP ranges (
/
is followed by subnet mask length):ipv4ipv6178.154.242.176/28
178.154.242.192/28
178.154.242.208/28
178.154.242.128/28
178.154.242.144/28
178.154.242.160/28
130.193.60.0/28
2a02:6b8:c03:500:0:f83d:a987:0/112
2a02:6b8:c02:900:0:f83d:a987:0/112
2a02:6b8:c0e:500:0:f83d:a987:0/112
2a02:6b8:c41:1300:0:f83d:a987:0/112
Connecting to Greenplum®
To create a Greenplum® connection:
Warning
If you use a new DataLens object model with workbooks and collections:
- Go to the DataLens home page
. In the left-hand panel, select - Open the workbook, click Create in the top-right corner, and select the appropriate object.
Follow the guide from step 3.
-
Go to the connections page
. -
Click Create connection.
-
Select a Greenplum connection.
-
Select the connection type:
Select in organizationSpecify manuallySelect a managed DB in the current Yandex Cloud organization and specify the internal network connection parameters for it:
-
Cluster: Specify a cluster from the list of available Greenplum® clusters. Cluster settings must have the DataLens access option enabled. If you do not have an available cluster, click Create new.
Note
The list shows the following clusters:
- With permissions for the user who creates the connection.
- Created in the same organization as the DataLens instance.
-
Hostname: Select the host name from the list of hosts available in the Greenplum® cluster. You can select multiple hosts. If you are unable to connect to the first host, DataLens will select the next one from the list.
-
Port: Specify the Greenplum® connection port. The default port is 6432.
-
Path to database: Specify the name of the database to connect to.
-
Username: Specify the username for the Greenplum® connection.
-
Password: Enter the password for the user.
-
Cache TTL in seconds: Specify the cache time-to-live or leave the default value. The recommended value is 300 seconds (5 minutes).
-
Raw SQL level: Enables you to use an ad-hoc SQL query to generate a dataset.
Manually specify the parameters of an external database to connect to via a public network:
- Hostname: Specify the path to a master host or a Greenplum® master host IP address. You can specify multiple hosts in a comma-separated list. If you are unable to connect to the first host, DataLens will select the next one from the list.
- Port: Specify the Greenplum® connection port. The default port is 5432.
- Path to database: Specify the name of the database to connect to.
- Username: Specify the username for the Greenplum® connection.
- Password: Enter the password for the user.
- Cache TTL in seconds: Specify the cache time-to-live or leave the default value. The recommended value is 300 seconds (5 minutes).
- Raw SQL level: Enables you to use an ad-hoc SQL query to generate a dataset.
-
-
Click Create connection.
-
Enter a name for the connection and click Create.
Note
You can check the host connection before creating it. To do this, click Check connection.
Additional settings
You can limit data export from charts by enabling Disable data export under Advanced connection settings. With this option enabled, the export data button will be hidden in the charts based on this connection. However, you will still be able to copy chart data and take screenshots.