Migrating Greenplum® clusters

You can migrate your database from a third-party Greenplum® or PostgreSQL cluster to Yandex MPP Analytics for PostgreSQL using Yandex Data Transfer. This method enables you to:

• Migrate the database without interrupting user service.
• Migrate from older Greenplum® versions to newer versions.
• Eliminate the need for an intermediate VM or public internet access to your Managed Service for PostgreSQL target cluster.

For more information, see Problems addressed by Yandex Data Transfer.

To migrate your database, you need to directly transfer the data, acquire a write lock for the old database, and switch over the load to the database cluster in Yandex Cloud.

Required paid resourcesRequired paid resources

The support cost includes:

• Greenplum® cluster fee: Using computing resources allocated to hosts and disk space (see Yandex MPP Analytics for PostgreSQL pricing).
• Fee for public IP addresses if public access is enabled for cluster hosts (see Virtual Private Cloud pricing).
• Fee per transfer: Use of computing resources and number of transferred data rows (see Data Transfer pricing).

Getting startedGetting started

Create a Greenplum® target cluster with the computing capacity and storage size appropriate for the environment where the migrated database is deployed.

The source and target database names must be the same.

Transferring dataTransferring data

1. Prepare the source cluster:

   • Greenplum®
   • PostgreSQL

2. Prepare the target cluster.

3. Create a source endpoint with the following parameters:

   • Database type: Greenplum or PostgreSQL

   • Endpoint parameters → Connection settings: Custom installation

     Configure the source cluster connection settings.

4. Create a target endpoint with the following parameters:

   • Database type: Greenplum

   • Endpoint parameters → Connection settings: Managed Service for Greenplum cluster

     Specify the ID of the target cluster.

5. Create a Snapshot-type transfer and configure it to use the previously created endpoints.

6. Activate the transfer.

7. Wait for the transfer status to change to Completed.

   For more information about transfer statuses, see Transfer lifecycle.

8. Switch the source cluster to read-only mode and transfer the load to the target cluster.

9. Delete the transfer (must not be in progress).

10. Delete the source and target endpoints.

Greenplum® and Greenplum Database® are registered trademarks or trademarks of Broadcom Inc. in the United States and/or other countries.