TY - GEN
T1 - An adaptive admission control policy for geographically distributed web systems
AU - Bartolini, Novella
AU - Bongiovanni, Giancarlo
AU - Silvestri, Simone
PY - 2007/6/6
Y1 - 2007/6/6
N2 - This paper deals with the problem of admission control for geographically distributed web servers in presence of several access routers. The main contribution of this paper is the proposal of a scalable admission control scheme with the purpose to accept as many new sessions as possible within the constraints on response time imposed by service level agreements. The proposed policy autonomously configures and periodically adapts its component level parameters to the time-varying traffic situations. Extensive simulations of our policy show that our algorithm always guarantees the adherence to SLAs under different traffic scenarios. The proposed method shows a stable behavior during overload by smoothing flash crowd effects. It also improves the successful session termination probability and the utilization of system resources when compared to other traditional admission control schemes.
AB - This paper deals with the problem of admission control for geographically distributed web servers in presence of several access routers. The main contribution of this paper is the proposal of a scalable admission control scheme with the purpose to accept as many new sessions as possible within the constraints on response time imposed by service level agreements. The proposed policy autonomously configures and periodically adapts its component level parameters to the time-varying traffic situations. Extensive simulations of our policy show that our algorithm always guarantees the adherence to SLAs under different traffic scenarios. The proposed method shows a stable behavior during overload by smoothing flash crowd effects. It also improves the successful session termination probability and the utilization of system resources when compared to other traditional admission control schemes.
UR - http://www.scopus.com/inward/record.url?scp=84994750930&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84994750930&partnerID=8YFLogxK
U2 - 10.4108/infoscale.2007.976
DO - 10.4108/infoscale.2007.976
M3 - Conference contribution
AN - SCOPUS:84994750930
T3 - ACM International Conference Proceeding Series
BT - Proceedings of the 2nd International Conference on Scalable Information Systems, InfoScale 2007
PB - Association for Computing Machinery
T2 - 2nd International Conference on Scalable Information Systems, InfoScale 2007
Y2 - 6 June 2007 through 8 June 2007
ER -