Glossary term
What is Virtual nodes (vnodes)?
Virtual nodes stands for vnodes.
Each server appears many times on the hash ring. Example: Spreads load evenly.
Learn it properly · System DesignLesson 26: Consistent Hashing, Visually ExplainedAdd a fifth cache server to hash(key) % 4 and 80% of your keys move — the hit ratio collapses and the database falls over. How the hash ring moves only ~1/N of keys, why virtual nodes even out the load, and the alternatives.