Title
Load balancing and stability issues in algorithms for service composition
Abstract
Service composition enables flexible creation of new services by assembling independent service components. We are focused on the scenario where such composition takes place across the wide-area Internet. We envision independent providers deploying and managing service instances and portal providers composing them to quickly enable new applications in next-generation networks. One of the important goals in such service composition is load balancing across service instances. While load balancing has been studied extensively for web-server selection, the presence of composition presents new challenges. First, each client session involving composition requires a set of service instances and not just one server. Second, unlike web-mirror selection, we also concern ourselves with load balancing in the presence of failure recovery during a client session. We introduce (a) a metric to choose the set of service instances for composed client sessions: the least-inverse-available-capacity (LIAC) metric, as well as (b) a piggybacking mechanism to give quick feedback about server load. We then introduce an additional factor in the load balancing metric to avoid choosing far away service instances. Our experiments, based on an emulation testbed, show that our load balancing mechanism works well under a variety of scenarios including network path failures.
Year
DOI
Venue
2003
10.1109/INFCOM.2003.1208983
INFOCOM
Keywords
Field
DocType
wide-area internet,piggybacking mechanism,server load feedback,service composition,least-inverse-available-capacity metric,service component assembling,stability issue algorithm,client session,portal provider,resource allocation,load balancing mechanism,service creation,network path failure,web-server selection,telecommunication services,service provider,internet,computer network reliability,failure recovery,emulation testbed,service instance managing,oscillations,feedback loop,next generation network,load balance,real time,distributed system,service level
Piggybacking (Internet access),Network Load Balancing Services,Load balancing (computing),Computer science,Round-robin DNS,Testbed,Computer network,Emulation,Telecommunications service,The Internet,Distributed computing
Conference
Volume
ISSN
ISBN
2
0743-166X
0-7803-7752-4
Citations 
PageRank 
References 
39
2.21
11
Authors
2
Name
Order
Citations
PageRank
Bhaskaran Raman11216142.51
Randy H. Katz2168193018.89