Migrating data from Yandex Managed Service for OpenSearch to YDB using Yandex 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 the transfer.
3. Test the transfer.

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

Getting startedGetting started

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

4. (Optional) Check the data in the test index:

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

Prepare and activate the transferPrepare and activate the 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 the Managed Service for OpenSearch cluster from the list.
   • User: admin.
   • Password: <user_password>.

2. Create a target endpoint and a 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 values for these parameters:

      • 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 the command to view planned changes:

         terraform plan
         

         If the resource configuration descriptions are correct, the terminal will display a list of the resources to modify and their parameters. This is a test step. No resources are updated.

      2. If you are happy with the planned changes, apply them:

         1. Run the command:

            terraform apply
            

         2. Confirm the update of 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 the following query:

   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 they were created:

   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.

   2. Delete the opensearch-to-ydb.tf configuration file.

   3. 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.

   4. Confirm updating the resources.

      1. Run the command to view planned changes:

         terraform plan
         

         If the resource configuration descriptions are correct, the terminal will display a list of the resources to modify and their parameters. This is a test step. No resources are updated.

      2. If you are happy with the planned changes, apply them:

         1. Run the command:

            terraform apply
            

         2. Confirm the update of resources.

         3. Wait for the operation to complete.

      This will delete all the resources described in the opensearch-to-ydb.tf configuration file.

2. Delete the source endpoint.