Quorum NWR Visualizer
Play with replication factor N, write quorum W, and read quorum R to build intuition for quorum consistency.
Quorum N / W / R Visualizer
Tune replication factor N, write quorum W, and read quorum R. Simulate writes and reads against live or down replicas to see consistency trade-offs.
Latest
Stale
Down
Rule of thumb: if W + R > N, any read quorum overlaps a write quorum, so you avoid stale reads in this simplified model (assuming no simultaneous failures beyond the down replicas you toggle).
Quick rules
| Setting | Meaning |
|---|---|
| N | Number of replica copies |
| W | How many replicas must acknowledge a write |
| R | How many replicas are consulted on a read |
If W + R > N, read and write quorums overlap — in this simplified model that prevents stale reads when enough replicas are healthy.