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Making Super Slurper 5x faster with Workers, Durable Objects, and Queues

Super Slurper is Cloudflare’s data migration tool that is designed to make large-scale data transfers between cloud object storage providers and Cloudflare R2 easy. Since its launch, thousands of developers have used Super Slurper to move petabytes of data from AWS S3, Google Cloud Storage, and other S3-compatible services to R2.

But we saw an opportunity to make it even faster. We rearchitected Super Slurper from the ground up using our Developer Platform — building on Cloudflare Workers, Durable Objects, and Queues — and improved transfer speeds by up to 5x. In this post, we’ll dive into the original architecture, the performance bottlenecks we identified, how we solved them, and the real-world impact of these improvements.

Super Slurper originally shared its architecture with SourcingKit, a tool built to bulk import images from AWS S3 into Cloudflare Images. SourcingKit was deployed on Kubernetes and ran alongside the Images service. When we started building Super Slurper, we split it into its own Kubernetes namespace and introduced a few new APIs to make it easier to use for the object storage use case. This setup worked well and helped thousands of developers move data to Continue reading