AWS re:Invent 2020 announcement: S3 Strong Read-After-Write Consistency

Andy Jassy presented a bunch of new services and features during his opening keynote for the 2020 AWS re:Invent, but one that caught my attention is the one regarding S3 Strong Read-After-Write consistency. So let’s take a bit of a deeper dive into the new S3 feature.

What is Amazon S3?

Amazon S3 (Simple Storage Service) is a service that provides object storage which aims to provide scalability, high availability, and low latency with 99.999999999% durability and 99.99% availability by replicating data across multiple servers within AWS data centers. It’s used by different types of customers for different purposes, for example hybrid cloud storage, websites, enterprise applications, cloud-native applications, mobile applications, backups, big data analytics and data lakes.

What’s the news?

AWS improved its usage by introducing a Strong Read-After-Write Consistency.

Why this is so important?

Well, this is a big improvement for customers using S3 for their data lakes or big data workloads as these services require immediate access to the latest data as soon as it is saved and will now no longer have to resort to third-party tools to have strong consistency for these applications.

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