The CAP theorem, tangibly

Choose any two. Toggle the partition. Watch the third guarantee fail — and see, in the event log, exactly where.

Throughput

342/s

p99 latency

118 ms

Violations

Trilemma

Observation

Under a network partition, a system cannot be both consistent and available.

Pick two

Event log 6 events

t=0.02 write(k=x, v=1) → primary ✓

t=0.03 replicate → r2 ✓ r3 ✓

t=0.11 partition: r3 ⇍ r1

t=0.14 read(k=x) @ r3 → timeout

t=0.21 write(k=y) blocked (quorum)

t=0.44 heal → re-sync 2 keys