AWS Big Data Blog

In this post, we explore different OpenSearch Service authentication methods and network topology considerations. Then we show how to build an architecture to access an OpenSearch Service domain hosted in a VPC using AWS Client VPN, AWS Transit Gateway, and AWS IAM Identity Center.

AWS Glue DQDL labels add organizational context to data quality management by attaching business metadata directly to validation rules. In this post, we highlight the new DQDL labels feature, which enhances how you organize, prioritize, and operationalize your data quality efforts at scale. We show how labels such as business criticality, compliance requirements, team ownership, or data domain can be attached to data quality rules to streamline triage and analysis. You’ll learn how to quickly surface targeted insights (for example, “all high-priority customer data failures owned by marketing” or “GDPR-related issues from our Salesforce ingestion pipeline”) and how DQDL labels can help teams improve accountability and accelerate remediation workflows.

In this post, we explore key benefits, technical capabilities, and considerations for getting started with Spark 4.0.1 on Amazon EMR Serverless. With the emr-spark-8.0-preview release label, you can evaluate new SQL capabilities, Python API improvements, and streaming enhancements in your existing EMR Serverless environment.

As organizations scale their observability and analytics capabilities across multiple AWS Regions and environments, maintaining consistent dashboards becomes increasingly complex. Teams often spend hours manually recreating dashboards, creating workspaces, linking data sources, and validating configurations across deployments—a repetitive and error-prone process that slows down operational visibility. The next generation OpenSearch UI in Amazon OpenSearch Service […]

In this post, we show how to migrate an Oracle data warehouse to Amazon Redshift using Oracle GoldenGate and DMS Schema Conversion, a feature of AWS Database Migration Service (AWS DMS). This approach facilitates minimal business disruption through continuous replication.

Amazon MSK Express brokers are a key component to dynamically scaling clusters to meet demand. Express based clusters deliver 3 times higher throughput, 20 times faster scaling capabilities, and 90% faster broker recovery compared to Amazon MSK Provisioned clusters. In addition, Express brokers support intelligent rebalancing for 180 times faster operation performance, so partitions are automatically and consistently well distributed across brokers. Intelligent rebalancing automatically tracks cluster health and triggers partition redistribution when resource imbalances are detected, maintaining performance across brokers. This post demonstrates how to use the intelligent rebalancing feature and build a custom solution that scales Express based clusters horizontally (adding and removing brokers) dynamically based on Amazon CloudWatch metrics and predefined schedules. The solution provides capacity management while maintaining cluster performance and minimizing overhead.

In this post, we guide you through connecting various analytics tools to Amazon SageMaker Unified Studio using the Athena JDBC driver, enabling seamless access to your subscribed data within your Amazon SageMaker Unified Studio projects.

In this post, we demonstrate the capabilities of SageMaker Data Agent, discuss the challenges it addresses, and explore a real-world example analyzing New York City taxi trip data to see the agent in action.

In this post, we present a scalable solution that addresses the challenge of migrating your large binary objects (LOBs) from Oracle to AWS by using a streaming architecture that separates LOB storage from structured data. This approach avoids size constraints, reduces Oracle licensing costs, and preserves data integrity throughout extended migration periods.

Bazaarvoice is an Austin-based company powering a world-leading reviews and ratings platform. Our system processes billions of consumer interactions through ratings, reviews, images, and videos, helping brands and retailers build shopper confidence and drive sales by using authentic user-generated content (UGC) across the customer journey. In this post, we show you the steps we took to migrate our workloads from self-hosted Kafka to Amazon Managed Streaming for Apache Kafka (Amazon MSK). We walk you through our migration process and highlight the improvements we achieved after this transition.