Tag

virtual nodes

2 cards

Cards

Cassandra's leaderless ring of tokens with 256 per node by default, what virtual nodes buy when adding or losing a node, and the gossip and repair cost that comes with them

Case StudyDay 35Sep 4, 2026

Cassandra Calls Them Tokens

system-design distributed-data cassandra

Three servers on a hash ring owning wildly uneven shares, and the fix — hashing each server two hundred times so six hundred small slices interleave around the ring

Distributed DataDay 35Sep 4, 2026

One Server, Two Hundred Places

system-design distributed-data consistent-hashing