Quorum-based replication

• quorum-based replication
  • assume we get and put to all n replicas
  • bound for W, R means we don’t have to wait for all replicas — and can intersect w/ one replica wrt writes/reads
  • note that W + W > N not necessary
  • abstracted away with replication library — client just issues get
  • linearisability: replication library returns get at least after boxed RPCs return, which ensures linearisability. assuming read repair
    • for CAS operations no luck