1. Scaling ML Model Servers for Optimal Performance


    When it comes to scaling machine learning (ML) model servers for optimal performance, it is important to ensure that the infrastructure supporting your ML models can adjust to the workload dynamically. This is achieved through a combination of managed services for ML and auto-scaling capabilities of cloud resources.

    In this context, Azure Machine Learning's OnlineEndpoints are a great option. They provide scalable and secure endpoints for serving your ML models. With Azure Machine Learning, you can build, deploy, and manage high-quality models and use auto-scaling to automatically increase or decrease compute resources based on the load.

    Here is a Pulumi program that demonstrates how to create an OnlineEndpoint for an ML model in Azure, including autoscaling features to optimize performance as demand changes.

    Please ensure you have the necessary Pulumi and Azure configurations set up on your local machine before running this program. The azure-native package is used here for creating resources in a manner that is closely aligned with Azure's native ARM templates.

    import pulumi import pulumi_azure_native.machinelearningservices as ml # Define the scaling settings for your OnlineEndpoint autoscale_settings = ml.SkuAutoScale( min_instances=1, # Minimum number of instances max_instances=4, # Maximum number of instances scale_out_increment=1 # Scale-out increment ) # Create an OnlineEndpoint for your ML model ml_online_endpoint = ml.OnlineEndpoint( "mlOnlineEndpoint", location="eastus", # The location should be where your resources and data are sku=ml.ManagedServiceIdentitySkuArgs( name="Standard_DS3_v2", # Specific compute resource SKU tier="Standard", # Tier to which the SKU belongs capacity=2, # Number of comput units size="DS3_v2" # The size of the SKU ), autoscale=autoscale_settings, auth_mode="Key", # Authentication mode properties={"Description": "Online Endpoint for serving ML models."}, tags={"environment": "production"} ) # Export the primary key of the endpoint for authentication primary_key = pulumi.Output.all(ml_online_endpoint.name, ml_online_endpoint.resource_group_name).apply( lambda args: ml.list_online_endpoint_keys( endpoint_name=args[0], resource_group_name=args[1] ).primary_key ) pulumi.export("endpoint_name", ml_online_endpoint.name) pulumi.export("endpoint_primary_key", primary_key)

    In this program:

    • We import the necessary Pulumi and Azure ML SDKs.
    • We define autoscale_settings which specify how the endpoint should scale in response to workload demands.
    • We create an OnlineEndpoint. The size and SKU are based on the computational needs of the ML model; these settings might be different based on your specific use case.
    • We export both the name of the ML endpoint and its primary key so they can be used for accessing and managing the endpoint.

    By running this Pulumi program, Pulumi will handle the provisioning and configuration of the OnlineEndpoint in your Azure subscription. Autoscaling is set up through the autoscale property, which ensures your ML model server scales according to the defined settings.

    To get started with Pulumi and Azure, you can refer to Pulumi's Azure Native documentation.