How does R* ensure reliable transactions in a distributed database? This paper explores the transaction management aspects of the R* distributed database system, with a focus on the commit protocols Presumed Abort (PA) and Presumed Commit (PC). These protocols extend the standard two-phase (2P) commit protocol, optimizing for read-only transactions and multi-site update transactions. PA and PC minimize inter-site message traffic and log writes, improving response time. The paper details how R* approaches distributed deadlock detection and resolution. R* ensures data consistency and reliability in distributed environments. This work offers insights into the challenges and solutions for managing transactions in distributed database systems, demonstrating R*'s approach to balancing performance and data integrity, ensuring database transactions are completed successfully across multiple systems.
This paper, published in ACM Transactions on Database Systems, directly addresses the journal's focus on transaction management and distributed databases. The description of the R commit protocols and deadlock detection mechanisms aligns with the journal's aim of advancing knowledge in database system design and implementation. The emphasis on optimizing performance and data consistency is highly relevant to the journal's scope.