Design and Implementation of Supporting QoS in Dispatcher
Guo Cheng-cheng · Jisuanji gongcheng · 2006
To support QoS in Web server cluster,dispatcher is equipped with some QoS mechanisms,including admission control,service differentiation,server repartition,performance isolation,and content adaptation.System satisfies the service level agreement targets for high priority request classes,and supply best-effort service for low priority request classes.The percentage of dropped requests of the system is very low,which mainly benefits from the content adaptation mechanism.Realistic experiments show that the system works as expected.