Fearlessly Handling BigKeys with Dragonfly

Dragonfly claims to be the most performant in-memory data store on earth, boasting an impressive 4 million ops/sec on an AWS EC2 c6gn.16xlarge instance and fully leveraging CPU and memory resources. However, it is crucial to understand any technology's limits, including BigKeys issues. A BigKey refers to a key that has a large-sized value attached to it, which can impact the performance of the in-memory data store and subsequently your applications. In this blog post, we explored the infamous BigKey issue and established best practices for working with them in Dragonfly. By exploring both the strengths and constraints, we hope to provide a comprehensive understanding of working with BigKeys in Dragonfly as well as how it compares with Redis.