AWS Lambda Expands Provisioned Mode for Kafka Event Source Mapping to Additional Regions

AWS Lambda has expanded regional availability for Provisioned Mode when using Apache Kafka as an event source. This feature is now accessible in the Asia Pacific (Taipei), AWS GovCloud (US-East), and AWS GovCloud (US-West) regions. It enables developers to optimize throughput by pre-provisioning event polling resources for both Amazon MSK and self-managed Kafka clusters.
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| Aspect | Before / Alternative | After / This |
|---|---|---|
| Scaling Mechanism | Fully managed automatic scaling based on event volume | User-defined minimum and maximum polling capacity |
| Traffic Handling | Reactive adjustment to traffic spikes which may cause latency | Proactive resource allocation to handle sudden bursts |
| Cost Model | Standard Event Source Mapping without dedicated unit pricing | Billed based on Event Poller Unit (EPU) usage |
| Regional Availability | Limited to initial launch regions | Expanded to Taipei and US GovCloud regions |
Action Checklist
- Identify Kafka ESM workloads in the newly supported regions Focus on applications with unpredictable traffic spikes
- Enable Provisioned Mode in the Lambda ESM configuration Applicable for both MSK and self-managed Kafka sources
- Configure the minimum and maximum number of Event Poller Units Balance throughput requirements with cost efficiency
- Monitor Event Poller Unit consumption in CloudWatch Ensure the provisioned range aligns with actual workload demands
Source: AWS What's New
This page summarizes the original source. Check the source for full details.