Rearchitecting Hugging Face Uploads and Downloads
Hugging Face's Xet team analyzed 24 hours of upload requests (8.2M uploads, 130.8 TB data) and found that current S3+CloudFront infrastructure has limitations, including a 50GB file size limit. To handle growing model weights (e.g., 131GB for Llama 3 70B), they are redesigning the architecture with a content-addressed store (CAS) and a custom protocol based on 'dumb reads and smart writes'. This will allow byte-level analysis, chunk-based transfers, and improved deduplication and compression.
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