# Use a Delta Lake cluster with Spark and AWS Glue
<a name="Deltacluster-spark-glue"></a>

To use the AWS Glue Catalog as the Metastore for Delta Lake tables, create a cluster with following steps. For information on specifying the Delta Lake classification using AWS Command Line Interface, see [ Supply a configuration using the AWS Command Line Interface when you create a cluster](https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-configure-apps-create-cluster.html#emr-configure-apps-create-cluster-cli) or [Supply a configuration using the Java SDK when you create a cluster](https://docs.aws.amazon.com/emr/latest/ReleaseGuide/emr-configure-apps-create-cluster.html#emr-configure-apps-create-cluster-sdk).

**Create a Delta Lake cluster**

1. Create a file, `configurations.json`, with the following content:

   ```
   [{"Classification":"delta-defaults",  
   "Properties":{"delta.enabled":"true"}},
   {"Classification":"spark-hive-site",
   "Properties":{"hive.metastore.client.factory.class":"com.amazonaws.glue.catalog.metastore.AWSGlueDataCatalogHiveClientFactory"}}]
   ```

1. Create a cluster with the following configuration, replacing the **example Amazon S3 bucket path** and the **subnet ID** with your own.

   ```
   aws emr create-cluster 
       --release-label  emr-6.9.0  
       --applications Name=Spark  
       --configurations file://delta_configurations.json 
       --region us-east-1  
       --name My_Spark_Delta_Cluster  
       --log-uri  s3://amzn-s3-demo-bucket/  
       --instance-type m5.xlarge  
       --instance-count 2   
       --service-role EMR_DefaultRole_V2  
       --ec2-attributes  InstanceProfile=EMR_EC2_DefaultRole,SubnetId=subnet-1234567890abcdef0
   ```