The Community for Technology Leaders
RSS Icon
Issue No.04 - December (1991 vol.3)
pp: 525-537
<p>An examination is made of a technique to derive the time-stamp or interval of time-stamps dynamically by using limited time-stamp history information to re-order transaction at commit time and to derive a back-shifted time-stamp for certification to reduce read-write conflicts. An analytic model to quantify the performance improvement by comparison with the basic time-stamp certification scheme is developed. Since the committed conflicting transaction may itself be back-shifted, the analytic model needs to estimate the distribution of the back-shift of the certification time-stamp in order to determine the probability of successfully back-shifting a transaction requesting commit. It is shown how this relatively complex protocol can be analyzed using a few simple approximations, validate the analysis through simulations, and the range of parameter values for which this approach is most beneficial is determined.</p>
time-stamp history; certification protocol; concurrency control; commit time; back-shifted time-stamp; read-write conflicts; analytic model; conflicting transaction; probability; transaction requesting commit; approximations; concurrency control; database theory; distributed databases; protocols; transaction processing
P.S. Yu, H.-U. Heiss, D.M. Dias, "Modeling and Analysis of a Time-Stamp History Based Certification Protocol for Concurrency Control", IEEE Transactions on Knowledge & Data Engineering, vol.3, no. 4, pp. 525-537, December 1991, doi:10.1109/69.109112
15 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool