= x0, key2 = y0」「B : key1 = x1, key2 = y0」「C : key1 = x1, key2 = y1」のいずれかに なる。 < Tx1.ts = t2 t0 t < Tx2.ts = t3 t0 t t key1 and key2’s Leaseholder (Node3) x0 Causal Reverse Anomaly の例 Tx’s Real Time Order (Clients) Tx1: Write (key1, x1) t0 Tx3: Read (key1, key2) Tx1’s Gateway Node (Node1) y1 x1 A t2 t3 B C Tx2’s Gateway Node (Node2) Tx2: Write (key2, y1)