Peter Song 
In the world of database management systems, few architectural decisions have as profound an impact on performance and use cases as the choice between row-based and column-based storage. While both approaches store the same data and can answer the same queries, the way they physically organize information on disk fundamentally changes their performance characteristics, optimal … Read more
Change Data Capture has become a popular pattern for data integration, real-time analytics, and event-driven architectures. The ability to track database changes and propagate them to downstream systems sounds universally beneficial. Yet CDC implementations frequently create more problems than they solve when applied inappropriately. Understanding when CDC is the wrong choice saves organizations from architectural … Read more
Selecting a Change Data Capture solution represents a critical architectural decision that impacts data freshness, operational complexity, and integration patterns for years. Debezium and AWS Database Migration Service (DMS) stand as two prominent CDC options, each with distinct philosophies, capabilities, and operational models. Debezium offers open-source flexibility and deep integration with streaming platforms, while DMS … Read more
Amazon Web Services offers two distinct services for handling streaming data: Kinesis Data Streams and Kinesis Data Firehose. While both process real-time data and share the Kinesis brand, they serve fundamentally different purposes and operate on different architectural principles. Choosing incorrectly between them can lead to unnecessary complexity, higher costs, or architectural limitations that force … Read more
Choosing the right natural language processing solution can make or break your text analysis project. AWS Comprehend offers a fully managed NLP service that promises to extract insights from text without the complexity of building and maintaining machine learning models. But when does Comprehend actually make sense for your use case, and when should you … Read more
Machine learning models in production are never static. They require retraining as new data arrives, fine-tuning to improve performance, and updates to fix issues or adapt to changing patterns. Yet deploying new model versions while maintaining service reliability presents significant challenges. Roll out a problematic model version and you might degrade user experience, make incorrect … Read more
In the modern data engineering landscape, the combination of Change Data Capture (CDC) and Delta Lake has emerged as a powerful pattern for building reliable, scalable data pipelines. A Delta CDC pipeline captures changes from source systems and writes them to Delta Lake tables, enabling organizations to maintain real-time synchronized data warehouses while preserving complete … Read more
Data lakes have become the cornerstone of modern analytics architectures, consolidating vast amounts of structured and unstructured data in a cost-effective storage layer. However, keeping these lakes fresh with the latest operational data has traditionally relied on batch ETL processes that introduce significant latency—often hours or even days between when data changes occur in source … Read more
Real-time dashboards have become essential for modern businesses that need to respond immediately to changing conditions. Whether you’re monitoring IoT sensors, tracking e-commerce transactions, analyzing user behavior, or observing application performance metrics, the ability to visualize data as it arrives provides competitive advantages that batch processing simply cannot match. Amazon Kinesis Data Analytics offers a … Read more
Amazon Web Services offers two powerful platforms for machine learning: SageMaker and Bedrock. While both fall under the AWS ML umbrella, they serve fundamentally different purposes and address distinct use cases. Understanding these differences is crucial for architects and data science teams making platform decisions, as choosing incorrectly can lead to unnecessary complexity, inflated costs, … Read more
