Compression, Dedupe and Encryption Conundrums in Cloud Data Lakes

Thursday, July 22 2021

Cloud data lake footprints are in exabytes and exponentially growing, and companies pay billions of dollars to store and retrieve data. In this talk, we will cover some of the space and time optimizations, which have historically been applied to on-premises file storage, and how they would be applied to objects stored in cloud data lakes.

Deduplication and compression are techniques that have been traditionally used to reduce the amount of storage used by applications. Data encryption is table stakes for any remote storage offering, and today we have client-side and server-side encryption support by cloud providers.

Combining compression, encryption and deduplication for object stores in the cloud is challenging due to the nature of overwrites and versioning, but the right strategy can save millions of dollars for an organization. We will cover some strategies for employing these techniques, depending on whether an organization prefers client-side or server-side encryption, and discuss online and offline deduplication of objects.

Companies such as Box and Netflix employ a subset of these techniques to reduce their cloud footprint and provide agility in their cloud operations.