Paper Info
Title
Peer-to-Peer Process Execution with Osiris
Abstract
Standards like SOAP, WSDL, and UDDI facilitate the proliferation of services. Based on these technologies, processes are a means to combine services to applications and to provide new value-added services. For large information systems, a centralized process engine is no longer appropriate due to limited scalability. Instead, in this paper, we propose a distributed and decentralized process engine that routes process instances directly from one node to the next ones. Such a Peer-to-Peer Process Execution (P(3)E) promises good scalability characteristics since it is able to dynamically balance the load of processes and services among all available service providers. Therefore, navigation costs only accumulate on nodes that are directly involved in the execution. However, this requires sophisticated strategies for the replication of meta information for P(3)E. Especially, replication mechanisms should avoid frequent accesses to global information repositories. In our system called OSIRIS (Open Service Infrastructure for Reliable and Integrated Process Support), we deploy a clever publish/subscribe based replication scheme together with freshness predicates to significantly reduce replication costs. This way, OSIRIS can support process-based applications in a dynamically evolving system without limiting scalability and correctness. First experiments have shown very promising results with respect to scalability.
Year
DOI
Venue
2003
10.1007/978-3-540-24593-3_33
Lecture Notes in Computer Science
DocType
Volume
ISSN
Conference
2910
0302-9743
Citations 
PageRank 
References 
34
2.21
16
Authors
4
Name
Order
Citations
PageRank
Christoph Schuler117512.26
Roger Weber21172144.05
Heiko Schuldt3803106.01
Hans-Jörg Schek439951366.90