Figure 1 Aria: (1) Transactions in a batch are executed against the same snapshot; (2) To achieve serializability, the transactions that suffer read-after-write conflict (e.g., T3) and ...

Multiversion concurrency control (MVCC) is a database optimization technique. MVCC creates duplicate copies of records so that data can be safely read and updated at the same time. With MVCC, database ...

In this article I’d like to present a discussion on concurrency handling, concurrency violations and the strategies involved to resolve concurrency conflicts. Concurrency violations: when and why do ...

Lock contention issues can be frustrating problems to investigate and debug. But anytime a database system is involved, the potential exists for locking to cause concurrency problems. Before blaming ...