AWS Big Data Blog

In today’s world, organizations are collecting an unprecedented amount of data from all kinds of different data sources, such as transactional data stores, clickstreams, log data, IoT data, and more. This data is often in different formats, such as structured data or unstructured data, and is usually referred to as the three Vs of big […]

September 2023: This post was reviewed and updated for accuracy to reflect recent improvements and changes. Traditionally, Spark workloads have been run on a dedicated setup like a Hadoop stack with YARN or MESOS as a resource manager. Starting from Apache Spark 2.3, Spark added support for Kubernetes as a resource manager. The new Kubernetes […]

April 2024: This post was reviewed for accuracy. February 2023: This post was reviewed and updated for accuracy of the code. When organizations set out to build machine learning (ML) applications such as natural language processing (NLP) systems, recommendation engines, or search-based systems, often times k-Nearest Neighbor (k-NN) search will be used at some point […]

This post is co-written with Srikanth Sallaka from TrustLogix as the lead author. TrustLogix is a cloud data access governance platform that monitors data usage to discover patterns, provide insights on least privileged access controls, and manage fine-grained data entitlements across data lake storage solutions like Amazon Simple Storage Service (Amazon S3), data warehouses like […]

This is a guest post by from Chitradeep Barman and Yaniv Ackerman  from Amazon Finance Technology (FinTech). Amazon Finance Technology (FinTech) is responsible for financial reporting on Earth’s largest transaction dataset, as the central organization supporting accounting and tax operations across Amazon. Amazon FinTech’s accounting, tax, and business finance teams close books and file taxes […]

Amazon QuickSight is a fully-managed, cloud-native business intelligence (BI) service that makes it easy to create and deliver insights to everyone in your organization or even with your customers and partners. You can make your data come to life with rich interactive charts and create beautiful dashboards to be shared with thousands of users, either […]

Data lakes are a centralized repository for storing structured and unstructured data at scale. Data lakes enable you to create dashboards, perform big data processing and real-time analytics, and create machine learning (ML) models on your data to drive business decisions. Many customers are choosing AWS Lake Formation as their data lake management solution. Lake […]

High availability (HA) is the property of a system or service to operate continuously without failing for a designated period of time. Implementing HA properties over a system allows you to eliminate single points of failure that usually translate to service disruptions, which can then lead to a business loss or the inability to use […]

July 2023: This post was reviewed for accuracy. AWS Glue DataBrew offers over 350 pre-built transformations to automate data preparation tasks (such as filtering anomalies, standardizing formats, and correcting invalid values) that would otherwise require days or weeks writing hand-coded transformations. You can now choose single or multiple output files instead of autogenerated files for […]

June 2023: This post was reviewed and updated for accuracy. In recent evolution in data lake technologies, it became popular to bring ACID (atomicity, consistency, isolation, and durability) transactions on Amazon Simple Storage Service (Amazon S3). You can achieve that by introducing open-source data lake formats such as Apache Hudi, Apache Iceberg, and Delta Lake. […]