Domino is a distributed transaction processing system implemented of SUCC. SUCC (Stateless Update Concurrency Control) is a distributed transaction control model. SUCC 1) largely removes the conflict detection; 2) does not require rollback; 3) assists the failed commit/forward to finish. These features make SUCC support high concurrency and low delay. Meanwhile, we present P4B abnormal, a new abnormal in Snapshot Isolation (SI). SUCC prevents not only all the abnormal of SI, also P4B abnormal. Domino is open source under GPL license. For more details, please refer it's wiki: https://github.com/domino-succ/domino/wiki