Migrating data from Yandex Managed Service for OpenSearch to Yandex Managed Service for YDB using Data Transfer

With Data Transfer, you can transfer data from a Managed Service for OpenSearch cluster to a Managed Service for YDB DB.

To transfer data:

1. Prepare the test data.
2. Prepare and activate your transfer.
3. Test the transfer.

If you no longer need the resources you created, delete them.

Required paid resourcesRequired paid resources

The support cost includes:

• Managed Service for OpenSearch cluster fee: Using computing resources allocated to hosts (including hosts with the MANAGER role) and disk space (see Managed Service for OpenSearch pricing).

• Per-transfer fee: Using computing resources and the number of transferred data rows (see Data Transfer pricing).

• Fee for using public IP addresses for cluster hosts (see Virtual Private Cloud pricing).

• Fee for the Managed Service for YDB database. The charge depends on the usage mode:

  • For the serverless mode, you pay for data operations and the amount of stored data.
  • For dedicated instance mode, you pay for the use of computing resources, dedicated DBs, and disk space.

  Learn more about the Managed Service for YDB pricing plans.

Getting startedGetting started

Set up your infrastructure:

Prepare the test dataPrepare the test data

1. Connect to the Managed Service for OpenSearch source cluster.

2. Create a test index named people and set its schema:

   curl --user admin:<password> \
        --cacert ~/.opensearch/root.crt \
        --header 'Content-Type: application/json' \
        --request PUT 'https://<address_of_OpenSearch_host_with_DATA_role>:9200/people' && \
   curl --user admin:<password> \
        --cacert ~/.opensearch/root.crt \
        --header 'Content-Type: application/json' \
        --request PUT 'https://<address_of_OpenSearch_host_with_DATA_role>:9200/people/_mapping?pretty' \
        --data'
        {
              "properties": {
                 "name": {"type": "text"},
                 "age": {"type": "integer"}
              }
        }
        '
   

3. Populate the test index with data:

   curl --user admin:<password> \
        --cacert ~/.opensearch/root.crt \
        --header 'Content-Type: application/json' \
        --request POST 'https://<address_of_OpenSearch_host_with_DATA_role>:9200/people/_doc/?pretty' \
        --data'
        {
              "name" : "Alice",
              "age" : "30"
        }
        ' && \
   curl --user admin:<password> \
        --cacert ~/.opensearch/root.crt \
        --header 'Content-Type: application/json' \
        --request POST 'https://<address_of_OpenSearch_host_with_DATA_role>:9200/people/_doc/?pretty' \
        --data'
        {
              "name" : "Robert",
              "age" : "32"
        }
        '
   

4. Optionally, check the data in the test index:

   curl --user admin:<password> \
        --cacert ~/.opensearch/root.crt \
        --header 'Content-Type: application/json' \
        --request GET 'https://<address_of_OpenSearch_host_with_DATA_role>:9200/people/_search?pretty'
   

Prepare and activate your transferPrepare and activate your transfer

1. Create a source endpoint of the OpenSearch type with the following settings:

   • Connection type: Managed Service for OpenSearch cluster.
   • Managed Service for OpenSearch cluster: Select a Managed Service for OpenSearch cluster from the list.
   • User: admin.
   • Password: <user_password>.

2. Create a target endpoint and transfer:

   Manually

   Using Terraform

   1. Create a target endpoint of the YDB type with the following settings:

      • Database: Select the ydb1 database from the list.
      • Service account ID: Select the ydb-account service account from the list.

   2. Create a transfer of the Snapshot type that will use the created endpoints.

   3. Activate the transfer and wait for its status to change to Completed.

   1. In the opensearch-to-ydb.tf file, specify the following settings:

      • source_endpoint_id: Source endpoint ID.
      • transfer_enabled: Set to 1 for creating a target endpoint and transfer.

   2. Make sure the Terraform configuration files are correct using this command:

      terraform validate
      

      If there are any errors in the configuration files, Terraform will point them out.

   3. Create the required infrastructure:

      1. Run this command to view the planned changes:

         terraform plan
         

         If you described the configuration correctly, the terminal will display a list of the resources to update and their parameters. This is a verification step that does not apply changes to your resources.

      2. If everything looks correct, apply the changes:

         1. Run this command:

            terraform apply
            

         2. Confirm updating the resources.

         3. Wait for the operation to complete.

   4. The transfer will be activated automatically. Wait for its status to change to Completed.

Test the transferTest the transfer

1. Connect to the Managed Service for YDB database.

2. Run this request:

   SELECT * FROM people;
   

   Response example

   # |          _id           | age | name
   --+------------------------+-----+---------
   0 | "5wn5BJEBRVOYnL8d13sP" | 30  | "Alice"
   1 | "6An5BJEBRVOYnL8d13uy" | 32  | "Robert"
   

Delete the resources you createdDelete the resources you created

Some resources are not free of charge. To avoid paying for them, delete the resources you no longer need:

1. Delete the resources depending on how you created them:

   Manually

   Using Terraform

   1. Delete the transfer.
   2. Delete the target endpoint.
   3. Delete the Managed Service for OpenSearch cluster.
   4. Delete the Managed Service for YDB database.
   5. Delete the service account.

   1. In the terminal window, go to the directory containing the infrastructure plan.

      Warning

      Make sure the directory has no Terraform manifests with the resources you want to keep. Terraform deletes all resources that were created using the manifests in the current directory.

   2. Delete resources:

      1. Run this command:

         terraform destroy
         

      2. Confirm deleting the resources and wait for the operation to complete.

      All the resources described in the Terraform manifests will be deleted.

2. Delete the source endpoint.