Skip to main content

Command Palette

Search for a command to run...

Part 6: Results, Team Presentation, and Key Lessons Learned

Updated
2 min read

Results

Overall we have evolved from a Legacy RDBMS --> DynamoDB --> DynamoDB + Kinesis Solution and here are some metrics captured:

Metric Legacy RDBMS Solution DynamoDB + Kinesis Solution
Jobs Processed Per Day ~200 >500
Complex Job Mix Baseline +30%
Scalability Fixed Capacity Horizontally Scalable
Data Availability Batch-Oriented < 5 Minutes
Concurrent Processing Limited Significantly Higher

AWS Event Presentation

The architecture and scalability journey described in this article was also presented at an AWS community event by members of our engineering team.

As the Principal Architect for the platform, I had the opportunity to contribute to the overall architecture, design decisions, and technical direction of the solution. However, I consciously chose not to participate as a presenter, instead providing an opportunity for members of the team to share their work, present the challenges we faced, and showcase the engineering solutions we implemented together.

I strongly believe that creating visibility and growth opportunities for engineers is an important aspect of technical leadership. Seeing the team confidently present the architecture, lessons learned, and business outcomes to a broader audience was particularly rewarding.

You can watch the session recording here:

Session Recording: Video Presentation on AWS Events

Key Lesson

Kinesis provides an effective buffer between data producers and DynamoDB, but it should not be viewed as an unlimited queue. The overall system remains constrained by the slowest component in the pipeline. Effective capacity planning, monitoring, and automated scaling are essential to ensure that transient traffic spikes do not evolve into sustained bottlenecks.

Scaling a Predictive Analytics Application on AWS - A Case Study

Part 6 of 6

Over the last few years, our Predictive Analytics application experienced significant growth in both data volume and workload complexity. What started as a traditional analytics solution running on an on-premises relational database eventually reached its scalability limits as business demand increased. To meet these challenges, we re-architected the application using Amazon DynamoDB and Amazon Kinesis Data Streams, transforming it into a highly scalable, event-driven system capable of processing over 500 jobs per day, including 30% more complex workloads, while maintaining a maximum data availability time of less than five minutes. This series documents the architectural journey, key design decisions, trade-offs, operational challenges, and lessons learned along the way. What You'll Learn How to identify when a relational database is no longer the right fit. When DynamoDB is a better choice than a traditional RDBMS. Designing single-table data models for large-scale immutable datasets. Handling burst traffic using Kinesis Data Streams. Cost optimization techniques for DynamoDB. Failure modes, capacity planning, and operational considerations. Measuring scalability through business outcomes rather than technical benchmarks.

Start from the beginning

Part 1: From 200 to 500+ Jobs Per Day — The Scalability Challenge

Learn about the business problem, the original on-premises architecture, the characteristics of the analytics workload, and why the existing relational database solution became a bottleneck. Topics Co