TY - GEN
T1 - Quality of service enabled database applications
AU - Krompass, S.
AU - Gmach, D.
AU - Scholz, A.
AU - Seltzsam, S.
AU - Kemper, A.
PY - 2006
Y1 - 2006
N2 - In today's enterprise service oriented software architectures, database systems are a crucial component for the quality of service (QoS) management between customers and service providers. The database workload consists of requests stemming from many different service classes, each of which has a dedicated service level agreement (SLA). We present an adaptive QoS management that is based on an economic model which adaptively penalizes individual requests depending on the SLA and the current degree of SLA conformance that the particular service class exhibits. For deriving the adaptive penalty of individual requests, our model differentiates between opportunity costs for underachieving an SLA threshold and marginal gains for (re-)achieving an SLA threshold. Based on the penalties, we develop a database component which schedules requests depending on their deadline and their associated penalty. We report experiments of our operational system to demonstrate the effectiveness of the adaptive QoS management.
AB - In today's enterprise service oriented software architectures, database systems are a crucial component for the quality of service (QoS) management between customers and service providers. The database workload consists of requests stemming from many different service classes, each of which has a dedicated service level agreement (SLA). We present an adaptive QoS management that is based on an economic model which adaptively penalizes individual requests depending on the SLA and the current degree of SLA conformance that the particular service class exhibits. For deriving the adaptive penalty of individual requests, our model differentiates between opportunity costs for underachieving an SLA threshold and marginal gains for (re-)achieving an SLA threshold. Based on the penalties, we develop a database component which schedules requests depending on their deadline and their associated penalty. We report experiments of our operational system to demonstrate the effectiveness of the adaptive QoS management.
UR - http://www.scopus.com/inward/record.url?scp=40949099710&partnerID=8YFLogxK
U2 - 10.1007/11948148_18
DO - 10.1007/11948148_18
M3 - Conference contribution
AN - SCOPUS:40949099710
SN - 3540681477
SN - 9783540681472
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 215
EP - 226
BT - Service-Oriented Computing - ICSOC 2006 - 4th International Conference, Proceedings
T2 - 4th International Conference on Service-Oriented Computing, ICSOC 2006
Y2 - 4 December 2006 through 7 December 2006
ER -