Create a Dataproc Metastore service

This page shows you how to create a Dataproc Metastore service.

After you create your Dataproc Metastore service, you can import metadata and connect to any of the following services:

• A Dataproc cluster.

• A self-managed Apache Hive instance, Apache Spark instance, or a Presto cluster.

After you connect one of these services, it uses your Dataproc Metastore service as its Hive metastore during query execution.

Note: It can take over 20 minutes to create a Dataproc Metastore service. Creating additional services in the same project, region, and VPC network can take less than 10 minutes.

Before you begin

• Understand the differences between a Dataproc Metastore 1 service and a Dataproc Metastore 2 service.
• Enable Dataproc Metastore in your project.
• Understand networking requirements specific to your project.

Required Roles

To get the permission that you need to create a Dataproc Metastore, ask your administrator to grant you the following IAM roles on your project, based on the principle of least privilege:

• Grant full control of Dataproc Metastore resources (roles/metastore.editor)
• Grant full access to all Dataproc Metastore resources, including IAM policy administration (roles/metastore.admin)

For more information about granting roles, see Manage access.

This predefined role contains the metastore.services.create permission, which is required to create a Dataproc Metastore.

You might also be able to get this permission with custom roles or other predefined roles.

For more information about specific Dataproc Metastore roles and permissions, see Manage access with IAM.

Create Dataproc Metastore using default settings

Creating a Dataproc Metastore using the default settings configures your service with an enterprise tier, a medium instance size, the latest version of the Hive Metastore, a Thrift endpoint, and a data location of us-central.

Dataproc Metastore 2

The following instructions show you how to create a Dataproc Metastore 2 using a Thrift endpoint and other provided default settings.

Console

1. In the Google Cloud console, go to the Dataproc Metastore page.

   Go to Dataproc Metastore

2. In the navigation bar, click +Create.

   The Create Metastore service dialog opens.

3. Select Dataproc Metastore 2.

4. In the Pricing and Capacity section, choose an instance size.

   For more information, see pricing plans and scaling configurations.

5. In the Service name field, enter a unique name for your service.

   For information on naming conventions, see Resource naming convention.

6. Select the Data location.

   For more information about selecting the appropriate region, see Available regions and zones and Regional endpoint.

7. For the remaining service configuration options, use the provided defaults.

8. To create and start the service, click Submit.

   Your new metastore service appears on the Dataproc Metastore page. The status displays Creating until the service is ready to use. When it's ready, the status changes to Active. Provisioning the service might take a few minutes.

gcloud CLI

To create a Dataproc Metastore metastore service 2 using the provided defaults, run the following gcloud metastore services create command:

gcloud metastore services create SERVICE \
  --location=LOCATION \
  --instance-size=INSTANCE_SIZE \
  --scaling-factor=SCALING_FACTOR

Replace the following:

• SERVICE: The name of your new Dataproc Metastore service.

• LOCATION: The Google Cloud region that you want to create your Dataproc Metastore in. You can also set a default location.

  For information on naming conventions, see Resource naming convention.

• INSTANCE_SIZE: the instance size of your multi-regional Dataproc Metastore. For example, small, medium or large. If you specify a value for INSTANCE_SIZE, don't specify a value for SCALING_FACTOR.

• SCALING_FACTOR: the scaling factor of your Dataproc Metastore service. For example, 0.1. If you specify a value for SCALING_FACTOR, don't specify a value for INSTANCE_SIZE.

REST

Follow the API instructions to create a service by using the APIs Explorer.

Dataproc Metastore 1

The following instructions show you how to create a Dataproc Metastore 1 using a Thrift endpoint and other provided default settings.

Console

1. In the Google Cloud console, go to the Dataproc Metastore page.

   Go to Dataproc Metastore

2. In the navigation bar, click +Create.

   The Create Metastore service dialog opens.

3. Select Dataproc Metastore 1.

4. In the Service name field, enter a unique name for your service.

   For information on naming conventions, see Resource naming convention.

5. Select the Data location.

   For more information about selecting the appropriate region, see Available regions and zones and Regional endpoint.

6. For the remaining service configuration options, use the provided defaults.

7. To create and start the service, click Submit.

   Your new metastore service appears on the Dataproc Metastore page. The status displays Creating until the service is ready to use. When it's ready, the status changes to Active. Provisioning the service might take a couple of minutes.

gcloud CLI

To create a basic metastore service using the provided defaults, run the following gcloud metastore services create command:

gcloud metastore services create SERVICE \
  --location=LOCATION

Replace the following:

• SERVICE: The name of your new Dataproc Metastore service.

• LOCATION: The Google Cloud region that you want to create your Dataproc Metastore in. You can also set a default location.

  For information on naming conventions, see Resource naming convention.

REST

Follow the API instructions to create a service by using the APIs Explorer.

Create Dataproc Metastore using advanced settings

Creating a Dataproc Metastore using the advanced settings shows you have to modify configurations such as network configurations, scaling settings, endpoint settings, security settings, and optional features.

Dataproc Metastore 2 or 1

The following instructions show you how to create a Dataproc Metastore 2 or a Dataproc Metastore 1 service using advanced settings.

Note: If your Hive warehouse directory is already on Cloud Storage, then you should set a metastore configuration override when you create your Dataproc Metastore service.

Console

Get started

1. In the Google Cloud console, open the Dataproc Metastore page:

   Open Dataproc Metastore

2. In the navigation menu, click +Create.

   The Create Metastore service dialog opens.

3. Select the Metastore version that you want to use, Dataproc Metastore 1 or Dataproc Metastore 2.

   Service info

   

   Example of the create service page

   1. (Optional): For Dataproc Metastore 2. In the Pricing and Capacity section, choose an instance size.

      For more information, see pricing plans and scaling configurations.

   2. In the Service name field, enter a unique name for your service.

      For information on naming conventions, see Resource naming convention.

   3. Select the Data location.

      For more information about selecting the appropriate region, see Available regions and zones and Regional endpoint.

   4. Select the Hive Metastore version.

      If this value is not modified, your service uses the latest supported version of Hive (currently version 3.1.2).

      For more information about selecting the correct version, see Version policy.

   5. Select the Release channel.

      If this value is not modified, your metastore uses the Stable value. For more information, see Release channel.

   6. Enter the TCP Port.

      The TCP port your Thrift endpoint connects to. If this value is not modified, port number 9083 is used. If you change your endpoint to gRPC, this value automatically changes to 443 and can't be changed.

   7. (Optional) For Dataproc Metastore 1. Select the Service tier.

      The service tier influences the capacity of your service. For more information, see Service Tier.

   Endpoint protocol

   • Optional: Choose an endpoint protocol.

     The default selected option is Apache Thrift. For more information about the different endpoints, see Choose the endpoint protocol.

   Network configuration

   1. Select a Network Configuration.

      By default, your service is only exposed in one VPC network and uses the default network. The default network only allows your service to connect to other services in the same project.

      Change your network settings from the default to complete the following actions:

      • Connect your Dataproc Metastore service to Dataproc Metastore services in other projects.
      • Use your Dataproc Metastore service with other Google Cloud services, such as Dataproc cluster.
      Note: If you use a gRPC endpoint, these settings are disabled.

   2. Optional: Click Use shared VPC network and enter the Project ID and VPC network name.

   3. Optional: Click Make services accessible in multiple VPC subnetworks and select the Subnetworks. You can specify up to five subnetworks.

   4. Click Done.

   Metadata integration

   • Optional: Enable Data Catalog sync.

     For more information, see Dataproc Metastore to Data Catalog sync.

   Maintenance window

   • Optional: Select the Day of week and Hour of day for your maintenance window.

     For more information, see Maintenance windows.

   Security

   1. Optional: Enable Kerberos.

      Note: To enable Kerberos, you need a keytab file. This file contains pairs of Kerberos principals and encrypted keys. A keytab file must contain the entry for the service principal created for this Hive metastore. For more information, see Configure Kerberos for a service.
      1. To enable Kerberos, click the toggle.
      2. Select or enter your secret resource ID.
      3. Either choose to use the latest secret version or select an older one to use.

      4. Enter the Kerberos principal.

         This is the principal allocated for this Dataproc Metastore service.

      5. Browse to the krb5 config file.

   2. Optional: Choose an encryption type.

      • The default selected option is Google-managed encryption key.

      • To select a customer-managed key, click Use a customer-managed encryption key (CMEK).

        For more information, see Using customer-managed encryption keys.

   Metastore config overrides

   • Optional: To apply a mapping to the Hive Metastore, click + Add Overrides.

     Note: To set a Hive metastore warehouse override, see Set a Hive warehouse override.

   Auxiliary version config

   • Optional: To add an Auxiliary version config, click Enable.

     For more information, see Auxiliary versions.

   Database type

   • Optional: Choose a database type.

     For Database type, select MySQL or Spanner. MySQL is the default database type.

     For more information about choosing a specific database type, see Database types.

   Labels

   • Optional: To add or remove optional labels that describe your metadata, click + Add Labels.

Start the service

To create and start the service, click Submit.

Your new metastore service appears on the Dataproc Metastore page. The status displays Creating until the service is ready to use. When it's ready, the status changes to Active. Provisioning the service might take a few minutes.

gcloud CLI

1. To create a metastore, run the following gcloud metastore services create command:

   gcloud metastore services create SERVICE \
     --location=LOCATION \
     --instance-size=INSTANCE_SIZE \
     --scaling-factor=SCALING_FACTOR \
     --port=PORT \
     --tier=TIER \
     --endpoint-protocol=ENDPOINT_PROTOCOL \
     --database-type=DATABASE_TYPE \
     --hive-metastore-version=HIVE_METASTORE_VERSION \
     --data-catalog-sync=DATA_CATALOG_SYNC \
     --release-channel=RELEASE_CHANNEL \
     --hive-metastore-configs=METADATA_OVERRIDE \
     --labels=LABELS \
     --auxiliary-versions=AUXILIARY_VERSION \
     --network=NETWORK \
     --consumer-subnetworks="projects/PROJECT_ID/regions/LOCATION/subnetworks/SUBNET1, projects/PROJECT_ID/regions/LOCATION/subnetworks/SUBNET2" \
     --kerberos-principal=KERBEROS_PRINCIPAL \
     --krb5-config=KRB5_CONFIG \
     --keytab=CLOUD_SECRET \
     --encryption-kms-key=KMS_KEY

   Replace the following:

   Service settings:

   • SERVICE: The name of your new Dataproc Metastore service. of your Dataproc Metastore service. For example, 0.1. If you specify a value for SCALING_FACTOR, don't specify a value for INSTANCE_SIZE.
   • LOCATION: The Google Cloud region that you want to create your Dataproc Metastore in. You can also set a default location.
   • PORT: Optional: The TCP port that your Thrift endpoint uses. If not set, port 9083 is used. If you choose to use a gRPC endpoint, your port number automatically changes to 443.
   • TIER: Optional for Dataproc Metastore 1: The service tier of your new service. If not set, the Developer value is used.
   • ENDPOINT_PROTOCOL: Optional: Choose the endpoint protocol for your service.
   • DATABASE_TYPE: Optional: Choose the database type for your service. For more information about choosing a specific database type, see Database types.
   • DATA_CATALOG_SYNC: Optional: Enable the Data Catalog sync feature.
   • HIVE_METASTORE_VERSION: Optional: The Hive metastore version of you want to use with your service. For example, 3.1.2. If not set, the latest version of Hive is used.
   • RELEASE_CHANNEL: Optional: The release channel of the service. If not set, the Stable value is used.
   • METADATA_OVERRIDE: Optional: The Hive metastore override configs you want to apply to your service. Use a comma separated list in the following format k1=v1,k2=v2,k3=v3.
   • LABELS: Optional: key-value pairs to add additional metadata to your service. Use a comma separated list in the following format k1=v1,k2=v2,k3=v3. Dataproc Metastore
   • AUXILIARY_VERSION: Optional: Enable auxiliary versions. For more information, see Auxiliary versions.

   Scaling settings:

   • INSTANCE_SIZE: Optional for Dataproc Metastore 2: the instance size of your multi-regional Dataproc Metastore. For example, small, medium or large. If you specify a value for INSTANCE_SIZE, don't specify a value for SCALING_FACTOR.
   • SCALING_FACTOR: Optional for Dataproc Metastore 2: the scaling factor of your Dataproc Metastore service. For example, 0.1. If you specify a value for SCALING_FACTOR, don't specify a value for INSTANCE_SIZE

   Network settings:

   • NETWORK: The name of the VPC network that you're connecting to your service. If not set, the default value is used.

     If you use a VPC network that belongs to a different project than your service, you must provide the entire relative resource name must be provided. For example, projects/HOST_PROJECT/global/networks/NETWORK_ID.

   • SUBNET1, SUBNET2: Optional: A list of subnetworks that can access your service. You can use the ID, fully-qualified URL, or relative name of the subnetwork. You can specify up to 5 subnetworks.

     Note: if you specified a value in --network, then you can't use this parameter.

   Kerberos settings:

   • KERBEROS_PRINCIPAL: Optional: A Kerberos principal that exists in the both the keytab and the KDC. A typical principal is of the form "primary/instance@REALM", but there is no exact format.
   • KRB5_CONFIG: Optional: The krb5.config file specifies the KDC and the Kerberos realm information, which includes locations of KDCs and defaults for the realm and Kerberos applications.
   • CLOUD_SECRET: Optional: The relative resource name of a Secret Manager secret version.
   • KMS_KEY: Optional: Refers to the key resource ID.

     Preview

     This product or feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA products and features are available "as is" and might have limited support. For more information, see the launch stage descriptions.

2. Verify that the creation was successful.

REST

Follow the API instructions to create a service by using the APIs Explorer.

Set a Hive metastore config override for Dataproc Metastore

If your Apache Hive warehouse directory is on Cloud Storage, you should set a metastore config override. This override sets your custom data warehouse as the default warehouse directory for your Dataproc Metastore service.

Before you set this override, make sure that your Dataproc Metastore service has object read and write permissions to access the warehouse directory. For more information, see Hive warehouse directory.

The following instructions show you how to set a Hive Metastore config override for a new Dataproc Metastore service.

Console

1. In the Google Cloud console, open the Dataproc Metastore page:

   Open Dataproc Metastore

2. In the navigation bar, click +Create.

3. In the Metastore config overrides, enter the following values:

   • Key: hive.metastore.warehouse.dir.
   • Value: The Cloud Storage location of your warehouse directory. For example: gs://my-bucket/path/to/location.

4. Configure the remaining service options as necessary, or use the provided defaults.

5. Click Submit.

   Return to the Dataproc Metastore page, and verify that your service was successfully created.

gcloud CLI

1. To create a Dataproc Metastore service with a Hive override, run the following gcloud metastore services create command:

   gcloud metastore services create SERVICE \
     --location=LOCATION \
     --hive-metastore-configs="hive.metastore.warehouse.dir=CUSTOMER_DIR"
   

   Replace the following:

   • SERVICE: The name of your new Dataproc Metastore service.
   • LOCATION: The Google Cloud region that you want to create your Dataproc Metastore in. You can also set a default location.
   • CUSTOMER_DIR: The Cloud Storage location of your warehouse directory. For example: gs://my-bucket/path/to/location.

2. Verify that the creation was successful.

Create Dataproc Metastore with autoscaling

Preview

This feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA features are available "as is" and might have limited support. For more information, see the launch stage descriptions.

Dataproc Metastore 2 supports autoscaling. If you turn on autoscaling, you can set a minimum scaling factor and a maximum scaling factor. After this is set, your service automatically increases or decreases the scaling factor required to run your workloads.

Autoscaling considerations

• Autoscaling and scaling factors are mutually exclusive options. For example, if you turn on autoscaling, you can't manually set a scaling factor or size.
• Autoscaling is only available for single region Dataproc Metastore instances.
• When autoscaling is enabled, existing scaling factors settings are cleared.
• When autoscaling is disabled:
  • Existing autoscaling settings are cleared.
  • The scaling factor is set to last autoscaling_factor that was configured on the service.
• The minimum and maximum autoscaling factors are optional. If not set, the default values are 0.1 and 6, respectively.

Choose one of the following tabs to learn how to create a Dataproc Metastore service 2 with autoscaling enabled.

Console

1. In the Google Cloud console, go to the Dataproc Metastore page.

   Go to Dataproc Metastore

2. In the navigation bar, click +Create.

   The Create Metastore service dialog opens.

3. Select Dataproc Metastore 2.

4. In the Pricing and Capacity section, select Enterprise - Single region

5. Under Instance Size, click Enable autoscaling.

6. Under Instance Size, use the slider to choose a minimum and maximum instance size.

7. To create and start the service, click Submit.

   Your new metastore service appears on the Dataproc Metastore page. The status displays Creating until the service is ready to use. When it's ready, the status changes to Active. Provisioning the service might take a few minutes.

REST

Note: The following command assumes that you've logged in to the gcloud CLI with your user account. You can sign in by executing gcloud init or gcloud auth login, or by using Cloud Shell, which automatically logs you into the gcloud CLI. You can check the active account by executing gcloud auth list.

curl -X POST -s -i -H "Authorization: Bearer $(gcloud auth print-access-token)" \
-d '{"scaling_config":{"autoscaling_config":{"autoscaling_enabled": true,"limit_config":{"max_scaling_factor":MAX_SCALING_FACTOR,"min_scaling_factor": MIN_SCALING_FACTOR}}}}' \
-H "Content-Type:application/json" \
https://metastore.googleapis.com/v1/projects/PROJECT_ID/locations/us-central1/services?service_id=SERVICE_ID

Replace the following:

• MIN_INSTANCES Optional: The minimum number of instances to use in your autoscaling configuration. If this values are not specified, a default value of 0.1 is used.
• MAX_INSTANCESOptional: The maximum number of instances to use in your autoscaling configuration. If this values are not specified, a default value of 6 is used.

Create a multi-regional Dataproc Metastore service

To create a multi-regional Dataproc Metastore, see Set up a multi-regional Dataproc Metastore service.

Create a Dataproc Metastore service using Shared VPC

A Shared VPC lets you connect Dataproc Metastore resources from multiple projects to a common VPC network.

To create a Dataproc Metastore service configured with a Shared VPC, see Create a service using advanced settings.

Considerations

• VPC networks are not relevant for Dataproc Metastore services configured with the gRPC endpoint protocol.

• For Dataproc Metastore services configured with the Thrift endpoint protocol, make sure your Dataproc Metastore service and the Dataproc cluster it's attached to are using the same Shared VPC network.

• For Dataproc Metastore services configured with the Thrift endpoint protocol and Private Service Connect, make sure that you use subnetworks from the Shared VPC network.

IAM roles required for Shared VPC networks

To create a Dataproc Metastore service with a VPC that is accessible in a network belonging to a different project, you must grant roles/metastore.serviceAgent to the service project's Dataproc Metastore service agent ([e-mail]) in the network project's IAM policy.

Caution: This IAM policy change grants Dataproc Metastore users with the metastore.services.create permission in the service project to indirectly create addresses and peerings in the network project.

gcloud projects add-iam-policy-binding NETWORK_PROJECT_ID \
   --role "roles/metastore.serviceAgent" \
   --member "serviceAccount:[e-mail]"

Note: If you have never created a Dataproc Metastore service in the service project, then the gcloud projects add-iam-policy-binding command might fail with an error message containing Service account [SERVICE_ACCOUNT_NAME] does not exist. If this happens, you can resolve the issue by attempting to create a service using a non-existent network in the service project. The service creation will fail, but it will trigger the creation of the service account. Afterwards, the command should succeed.

Troubleshoot common issues

Some common issues include the following:

• Restricting VPC peering. Before creating a metastore, don't set an org-policy constraint to restrict VPC peering or else the metastore creation fails. For more information about setting the correct VPC configurations, See Service creation fails due to constraint to restrict VPC peering.

• Issues with VPC networks. When creating a metastore, the VPC network you are using might run out of available RFC 1918 addresses required by Dataproc Metastore services. For more information about fixing this issue, see Allocated IP range is exhausted.

What's next

• Attach a Dataproc cluster
• Update and delete a service
• Import metadata into a service