AWS Lambda now supports direct read configuration for Amazon S3 Files

AWS Lambda Direct Read Configuration for Amazon S3 Files

AWS Lambda now supports direct read configuration for Amazon S3 Files, allowing you to optimize throughput and latency of file reads based on your application requirements. This feature enables you to configure whether your functions read from S3 Files high-performance storage or directly from your S3 bucket.

By default, Lambda supports direct reads from your S3 bucket only for functions configured with 512 MB of memory or higher. With this launch, you can explicitly enable or disable direct read for S3 Files on your Lambda functions, independent of function memory size. When enabled, your function reads files 1 MB or larger directly from your S3 bucket for maximum throughput, and smaller files are served through the high-performance storage. When disabled, all reads are served through the high-performance storage for the lowest latency.

What to do

• Configure direct read for S3 Files using the AWS Management Console, AWS CLI, AWS SDKs, or AWS CloudFormation.
• Optimize read performance for your specific application requirements by enabling or disabling direct read.

This capability is available in all AWS commercial Regions, AWS GovCloud (US-East), and AWS GovCloud (US-West) Regions, except Asia Pacific (New Zealand), Middle East (Bahrain), and Middle East (UAE). There is no additional charge beyond standard Lambda and S3 Files pricing.

Source: AWS release notes

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