Research Article
Improving the Concurrent Updates of Replicated Global Objects in Multi-Server Virtual Environments
@INPROCEEDINGS{10.4108/icst.simutools.2011.245593, author={Sebastian Bartholom\aa{}us and Alexander Ploss and Sergei Gorlatch}, title={Improving the Concurrent Updates of Replicated Global Objects in Multi-Server Virtual Environments}, proceedings={2nd International Workshop on DIstributed SImulation \& Online gaming}, publisher={ACM}, proceedings_a={DISIO}, year={2012}, month={4}, keywords={Distributed Systems Distributed applications Concurrent Programming Distributed programming Performance attributes}, doi={10.4108/icst.simutools.2011.245593} }- Sebastian Bartholomäus
Alexander Ploss
Sergei Gorlatch
Year: 2012
Improving the Concurrent Updates of Replicated Global Objects in Multi-Server Virtual Environments
DISIO
ACM
DOI: 10.4108/icst.simutools.2011.245593
Abstract
We study an emerging class of high-performance virtual en- vironments, called Real-Time Online Interactive Applica- tions (ROIA), with such popular examples as Massively Multi-player Online Games (MMOG), interactive simula- tions, virtual communities, etc. ROIA must handle an enor- mous number of actions from geographically distributed user processes and present to each user a consistent view of the application state. We address a challenging aspect which in-
uences the application scalability { the simultaneous access of several clients and servers to globally replicated objects. The traditional primary-copy-based state replication mecha- nism ensures fast read access but shows drawbacks for global objects that are concurrently updated by multiple processes. Our main contribution is to combine the traditional state- based approach with a novel operation-based update order- ing approach that considers the operation's semantics and allows to use weaker consistency models than the sequen- tial consistency enforced by the primary copy protocol.