Connect to Apache Iceberg

Learn to create a connection to Apache Iceberg in OCI GoldenGate.

Before you begin

Ensure that you:

Review how OCI GoldenGate connects to your source and targets.
Configure the required policies to enable secure Vault and Secrets access, such as use secrets, use vaults, and read secret-bundles. For more information, see Minimum recommended policies.

Create the connection

To create a connection to Apache Iceberg:

From the OCI GoldenGate Overview page, select Connections.

You can also select Create Connection under the Get started section and skip to step 3.
On the Connections page, select Create Connection.
On the Create Connection page, complete the fields as follows:
1. For Name, enter a name for the connection.
2. (Optional) For Description, enter a description that helps you distinguish this connection from others.
3. (For GoldenGate on Multicloud only) Select your Subscription, and then complete the following fields.
  1. From the Compartment dropdown, select the compartment in which the Resource Anchor resides.
  2. Select the Multicloud partner region.
  3. Select your Partner availability zone. The available options populate based on the selected Multicloud partner region.
4. For Compartment, select the compartment in which to create the connection.
5. For Type, under Big Data, select Apache Iceberg.
6. Select a Catalog type from the dropdown, and then complete the relevant catalog fields:
  1. For Glue, enter the Glue ID.
  2. For Hadoop, no additional information is needed.
  3. For Nessie, specify:
    - URI: Enter the Nessie catalog URI.
    - Branch: Enter the active branch name from which Nessie reads and write table metadata.
  4. For Polaris, specify:
    - URI: Enter the Polaris catalog URI.
    - Name: Enter the name in which Polaris registers Iceberg tables.
    - Client ID: Enter the OAuth client ID to use for authentication.
    - Client secret: Select the client secret, or select Create client secret to create a new one. If you choose to create a new client secret, provide the following information:
      - Name
      - (Optional) Description
      - Select the Compartmentin which the properties secret resides.
      - Select the Vaultin which to store the properties secret.
      - Select the Encryption key to use.
      - Enter the User Password, then confirm the User Password.
    - Principal role: Enter the Snowflake role used to access Polaris.
  5. For Rest, specify:
    - URI: Enter the base URL for the REST catalog API.
    - Properties Secret: Select the properties secret, or select Create properties secret to create a new one. If you choose to create a new properties secret, provide the following information:
      - Name
      - (Optional) Description
      - Select the Compartmentin which the properties secret resides.
      - Select the Vaultin which to store the properties secret.
      - Select the Encryption key to use.
      - Upload the Properties secret ID.
7. Select a Storage type from the dropdown, and then complete the relevant storage fields:
  - Amazon S3: See Connect to Amazon S3
  - Google Cloud Storage: See Connect to Google Cloud Storage
  - Azure Data Lake Storage: See Connect to Azure Data Lake Storage
8. Expand Show advanced options. You can configure the following options:
  - Security
    - Deselect Use vault secrets you prefer not to use password secrets for this connection. If not selected:
      - Select Use Oracle-managed encryption key to leave all encryption key management to Oracle.
      - Select Use customer-managed encryption key to select a specific encryption key stored in your OCI Vault to encrypt your connection credentials.
  - Network connectivity
    - Shared endpoint, to share an endpoint with the assigned deployment. You must allow connectivity from the deployment's ingress IP.
    - Dedicated endpoint, for network traffic through a dedicated endpoint in the assigned subnet in your VCN. You must allow connectivity from this connection's ingress IPs.
      Note:
      
      If a dedicated connection remains unassigned for seven days, then the service converts it to a shared connection.
      
      Learn more about Oracle GoldenGate connectivity.
  - Security attributes: Add security attributes to control access to this connection using Zero Trust Packet Routing (ZPR).
  - Tags: Add tags to organize your resources.
Select Create.

After the connection is created, it appears in the Connection list. Ensure that you assign the connection to a deployment to use it in a data replication process.

Next steps

Known issues

Issue with Apache Iceberg connections in OCI GoldenGate

If you encounter the following error when using Apache Iceberg connections, open a support ticket, share the details and error message:

ERROR 2025-07-08 13:34:09.000481 [main] -  Parameter [awsSecretKey] is missing in the
      connection payload. Parameter [awsSecretKey] is missing in the connection payload.