AWS Big Data Blog

Modern data lakes depend on extract, transform, and load (ETL) operations to convert bulk information into usable data. This post walks through implementing an ETL orchestration process that is loosely coupled using AWS Step Functions, AWS Lambda, and AWS Batch to target an Amazon Redshift cluster. Because Amazon Redshift uses columnar storage, it is well […]

Salesforce is a popular and widely used customer relationship management (CRM) platform. It lets you store and manage prospect and customer information—like contact info, accounts, leads, and sales opportunities—in one central location. You can derive a lot of useful information by combining the prospect information stored in Salesforce with other structured and unstructured data in […]

Customers often use Amazon Elasticsearch Service for log analytics. Amazon ES lets you collect logs from your infrastructure, transform each log line into a JSON document, and send those documents to the bulk API. A transformed log line contains many fields, each containing values. For instance, an Apache web log line includes a source IP […]

If you are a developer or data scientist using long-running Amazon EMR clusters, you face fast-changing workloads. These changes often require different application configurations to run optimally on your cluster. With the reconfiguration feature, you can now change configurations on running EMR clusters. Starting with EMR release emr-5.21.0, this feature allows you to modify configurations […]

Building a data lake on Amazon S3 provides an organization with countless benefits. It allows you to access diverse data sources, determine unique relationships, build AI/ML models to provide customized customer experiences, and accelerate the curation of new datasets for consumption. However, capturing and loading continuously changing updates from operational data stores—whether on-premises or on […]

The financial impact of fraud in any industry is massive. According to the Financial Times article Fraud Costs Telecoms Industry $17bn a Year (paid subscription required), fraud costs the telecommunications industry $17 billion in lost revenues every year. Fraudsters constantly look for new technologies and devise new techniques. This changes fraud patterns and makes detection […]

Amazon EMR release 5.24.0 includes several optimizations in Spark that improve query performance. To evaluate the performance improvements, we used TPC-DS benchmark queries with 3-TB scale and ran them on a 6-node c4.8xlarge EMR cluster with data in Amazon S3. We observed up to 13X better query performance on EMR 5.24 compared to EMR 5.16 when operating with a similar configuration.

Today, AWS is excited to announce the availability of fine-grained access control for AWS Identity and Access Management (IAM)-permissioned resources in Amazon QuickSight. Fine-grained access control allows Amazon QuickSight account administrators to control authors’ default access to connected AWS resources. Fine-grained access control enables administrators to use IAM policies to scope down access permissions, limiting specific authors’ access to specific items within the AWS resources. Administrators can now apply this new level of access control to Amazon S3, Amazon Athena, and Amazon RDS/Redshift database discovery.

After reviewing many solutions, 3M HIS chose Amazon Redshift as the appropriate data warehouse solution. We concluded Amazon Redshift met our needs; a fast, fully managed, petabyte-scale data warehouse solution that uses columnar storage to minimize I/O, provides high data compression rates, and offers fast performance. We quickly spun up a cluster in our development environment, built out the dimensional model, loaded data, and made it available to perform benchmarking and testing of the user data. An extract, transform, load (ETL) tool was used to process and load the data from various sources into Amazon Redshift.

Today, we’re introducing the Amazon EMR Migrations Guide (first published June 2019.) This paper is a comprehensive guide to offer sound technical advice to help customers in planning how to move from on-premises big data deployments to EMR.