Cloudflare Reclaims 100 TB of RAM by Rebuilding Its Hash Ring
This story is from 2026-10-30. It is preserved in the archive; the latest stories are on the live feed.
TL;DR Consistent hashing is the technique that spreads requests across a pool of servers so that adding or removing one server moves a small slice of the work; Cloudflare's open-source implementation is called pingora-ketama, and its Pingora Backend Router uses it to decide which server holds a cac…
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- 2026-10-30 14:00 · DEV Community — AI
Cloudflare Reclaims 100 TB of RAM by Rebuilding Its Hash Ring