We believe empowering engineers drives innovation.

Data Articles

Flow logs are the native network logging layer for AWS. These logs can be setup specifically for logging IP traffic on subnets, network interfaces, or VPCs. VPC flow logs in particular contain a vast amount of IP traffic information and data points for our resources that can be leveraged for: Monitoring boundaries for networks and AWS accounts Detecting anomolous network activity Catching unintentional cross-region data transfers early (to avoid unnecessary costs) Identifying system optimizations based on AZ distribution Performing various network traffic flow optimizations In this blog post, we’ll be learning how to:

By Mueez Khan & James Becker
August 18, 2022

Performing any data migration at scale is a delicate calculation of technical complexities and cost. AWS has an extensive suite of database services to assist with these efforts in their Relational Database Service (RDS) offerings. In this post, we discuss the Aurora Global Database product and how it was used to migrate applications for a large financial media customer. We discuss the pros and cons of the product as it relates to other RDS offerings and why this was the best solution for our use case.

By Lawrence Aiello
July 26, 2022

Apache Airflow is a phenomenal tool for building data flows. It’s reliable, well-maintained, well-documented, and has plugins for just about everything. It’s easy to extend, has pre-built deployment patterns, and is readily available in a variety of cloud environments. However, it’s also an aging tool, and has a few quirks that hearken to an earlier time in its development. Some issues include rigid DAG-centric dataflows, confusing differences between logical runtime and wall-clock execution time, and significant limitations in the size of individual DAGs.

By David Maxson
May 9, 2022

At Rearc we take pride in providing best-in-class curated data, delivering it “where the customer is.” That’s why we got very excited when Amazon announced AWS Data Exchange for Amazon Redshift. AWS Data Exchange for Amazon Redshift AWS Data Exchange for Amazon Redshift enables you to find and subscribe to third-party data in AWS Data Exchange that you can query in an Amazon Redshift data warehouse in minutes. This feature empowers you to quickly query, analyze, and build applications with third-party data.

By Daniel Barrundia
April 5, 2022

At Rearc, we work with hundreds of datasets sourced directly from various authorities, government agencies, and organizations. A core part of the value we provide to our customers is ensuring that they receive clean and reliable data, no matter what the raw original data looks like. While some of this is accomplished by enforcing data types and strict schemas, errors can easily slip through the cracks. To address these problems, we began investigating solutions for a succinct, self-documenting, self-verifying way of declaring what the output data should look like.

By David Maxson
April 1, 2022

We recently open sourced the Publisher Coordinator for AWS Data Exchange (ADX) to benefit the larger community of data providers and we are happy to share more details in this blog post. Rearc’s ADX Publisher Coordinator offers a scalable cloud-based infrastructure for data publishing process on ADX. If you are a data provider with valuable data offerings that you are excited to share with the world and monetize, keep reading!

By Masi Nazarian
August 3, 2021