Chord: A scalable peer-to-peer lookup service for internet applications
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
The Real-Time Specification for Java
The Real-Time Specification for Java
Distributed Systems for System Architects
Distributed Systems for System Architects
Hermes: A Distributed Event-Based Middleware Architecture
ICDCSW '02 Proceedings of the 22nd International Conference on Distributed Computing Systems
Revised Papers from the NETWORKING 2002 Workshops on Web Engineering and Peer-to-Peer Computing
MEAD: support for Real-Time Fault-Tolerant CORBA: Research Articles
Concurrency and Computation: Practice & Experience - Foundations of Middleware Technologies
Dynamo: amazon's highly available key-value store
Proceedings of twenty-first ACM SIGOPS symposium on Operating systems principles
Proceedings of the 4th on Middleware doctoral symposium
Challenges, design and analysis of a large-scale p2p-vod system
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Proceedings of the ACM/IFIP/USENIX 2003 International Conference on Middleware
Lightweight Fault-Tolerance for Peer-to-Peer Middleware
SRDS '10 Proceedings of the 2010 29th IEEE Symposium on Reliable Distributed Systems
Guide to Reliable Distributed Systems: Building High-Assurance Applications and Cloud-Hosted Services
The design of the TAO real-time object request broker
Computer Communications
QRON: QoS-aware routing in overlay networks
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.00 |
Large scale information systems, such as public information systems for light-train/metro networks, must be able to fulfill contractualized Service Level Agreements (SLAs) in terms of end-to-end latencies and jitter, even in the presence of faults. Failure to do so has potential legal and financial implications for the software developers. Current middleware solutions have a hard time coping with these demands due, fundamentally, to a lack of adequate, simultaneous, support for fault-tolerance (FT) and real-time (RT) tasks. In this paper we present Stheno, a general purpose peer-to-peer (P2P) middleware system that builds on previous work from TAO and MEAD to provide: (a) configurable, transparent, FT support by taking advantage of the P2P layer topology awareness to efficiently implement Common Of The Shelf (COTS) replication algorithms and replica management strategies, and; (b) kernel-level resource reservation integrated with well-known threading strategies based on priorities to provide more robust support for soft real-time tasks. An evaluation of the first (unoptimized) prototype for the middleware shows that Stheno is able to match and often greatly exceed the SLA agreements provided by our target system, the light-train/metro information system developed and maintained by EFACEC, and currently deployed at multiple cities in Europe and Brazil.