Concurrency control performance modeling: alternatives and implications
ACM Transactions on Database Systems (TODS)
Orange locking: channel-free database concurrency control via locking
Results of the Sixth Working Conference of IFIP Working Group 11.3 on Database Security on Database security, VI : status and prospects: status and prospects
On optimistic methods for concurrency control
ACM Transactions on Database Systems (TODS)
Journal of Systems Architecture: the EUROMICRO Journal
The Performance of Concurrency Control Algorithms for Database Management Systems
VLDB '84 Proceedings of the 10th International Conference on Very Large Data Bases
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Although many concurrency control schemes have been developed, a thorough understanding of their actual performance is not enough. Numerous performance studies in non-secure centralized databases have been done in the past decade. However, their results cannot be directly applied to multilevel-secure databases, since in addition to single-level concurrency control, multilevel-secure databases deal with new problems of convert channel due to read-down conflict operations. Investigating their impact on transaction scheduling is a crucial issue. The concurrency control requirements for tran-saction processing in an MLS/DBMS are different from those in conventional transaction processing systems with respect to inclusion of covert-channel freeness. In particular, there is the need to coordinate transactions at different security levels avoiding both potential covert timing channels and the starvation of transactions at high security levels. Using a secure transaction processing model, we can evaluate the throughput and response time characteristics of multilevel-secure concurrency control schemes under a wide variety of database workloads and system configurations.