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Soft state in publish/subscribe

Zbigniew Jerzak, Christof Fetzer
2009 Proceedings of the Third ACM International Conference on Distributed Event-Based Systems - DEBS '09  
In this paper, we show how to build a soft state content-based publish/subscribe system where the whole state is stored at the edge of the publish/subscribe network, at the entity which is utilizing the  ...  Every node in a distributed publish/subscribe system stores a significant amount of routing state which can be easily corrupted due to message omissions, link and node failures.  ...  In this paper, we propose a soft state [5, 27] content-based publish/subscribe system.  ... 
doi:10.1145/1619258.1619281 dblp:conf/debs/JerzakF09 fatcat:6i3e2inct5ffjg2jklilygjuoi

HSIENA: A Hybrid Publish/Subscribe System [chapter]

Fabio Petroni, Leonardo Querzoni
2012 Lecture Notes in Computer Science  
The SIENA publish/subscribe system represents a prototypical design for a distributed event notification service implementing the content-based publish/subscribe communication paradigm.  ...  This problem limits the applicability of SIENA in large complex critical infrastructures where self-adaptation and -configuration are crucial requirements.  ...  The rest of this paper is organized as follows: Section 2 provides fundamental background knowledge on the publish/subscribe paradigm, on the SIENA system and on the current state of the art related to  ... 
doi:10.1007/978-3-642-33675-1_25 fatcat:udxynpezjjfvrbltdrbyqn6h6a

VSO: Self-Organizing Spatial Publish Subscribe

Shun-Yun Hu, Kuan-Ta Chen
2011 2011 IEEE Fifth International Conference on Self-Adaptive and Self-Organizing Systems  
Spatial publish subscribe (SPS) is a basic primitive underlying many real-time, interactive applications such as online games or discrete-time simulations.  ...  receive updates from matchers in other regions, a subscription is replicated at all other non-owner matchers if the subscription overlaps their regions, and is maintained with a soft-state model (i.e.  ...  Below, we describe the procedures of VSO in more details, but first summarize the terminology that will be used: client a user node that performs publish/subscribe requests. matcher a manager node of a  ... 
doi:10.1109/saso.2011.13 dblp:conf/saso/HuC11 fatcat:3xdgpmwnljdyvdqptsfqd4twim

PSIRP project -- publish-subscribe internet routing paradigm

Vladimir Dimitrov, Ventzislav Koptchev
2010 Proceedings of the 11th International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing on International Conference on Computer Systems and Technologies - CompSysTech '10  
In this paper, we introduce the Publish/Subscribe Internet Routing Paradigm (PSIRP) and present an architectural redesign of the global Internet based on an information-centric publish/subscribe (pub/sub  ...  The unfavourable consequences are that the full range of possibilities offered by the Internet may not be fully realized and trust in its proper operation has been significantly weakened.  ...  One can observe that many widely used Internet applications already are essentially publish/subscribe in nature.  ... 
doi:10.1145/1839379.1839409 dblp:conf/compsystech/DimitrovK10 fatcat:bvfvqrysmvdftbr7vzkfbtw4ay

Access control in publish/subscribe systems

Jean Bacon, David M. Eyers, Jatinder Singh, Peter R. Pietzuch
2008 Proceedings of the second international conference on Distributed event-based systems - DEBS '08  
Two convincing paradigms have emerged for achieving scalability in widely distributed systems: publish/subscribe communication and role-based, policy-driven control of access to the system by applications  ...  A strength of publish/ subscribe is its many-to-many communication paradigm and loose coupling of components, so that publishers need not know the recipients of their data and subscribers need not know  ...  As in many scalable peer-to-peer infrastructures, soft-state is used within the network.  ... 
doi:10.1145/1385989.1385993 dblp:conf/debs/BaconESP08 fatcat:e4rrf2ih6red7izmzowe6ju24y

Opportunistic Multipath Forwarding in Content-Based Publish/Subscribe Overlays [chapter]

Reza Sherafat Kazemzadeh, Hans-Arno Jacobsen
2012 Lecture Notes in Computer Science  
Introduction Flexibility, scalability and loose coupling properties of the Publish/Subscribe (pub/sub) model has led to its adoption in a variety of enterprise, datacenter and wide-area network environments  ...  in order to correctly reflect the state of the primary network following the move.  ... 
doi:10.1007/978-3-642-35170-9_13 fatcat:iyf6yeivwvfljnr4a5ocezceye

On adding replies to publish-subscribe

Gianpaolo Cugola, Matteo Migliavacca, Alessandro Monguzzi
2007 Proceedings of the 2007 inaugural international conference on Distributed event-based systems - DEBS '07  
We started from this consideration to introduce replies into the publish-subscribe model in a way that could minimize the impact on the positive characteristics of the model.  ...  Recently, the publish-subscribe communication model has attracted the attention of developers as a viable alternative to traditional communication schemas, like request/reply, for the flexibility it brings  ...  It tracks Repliable messages while they flow along the REDS overlay network, from publishers to subscribers, and uses this soft state to route replies back and to determine the exact number of replies  ... 
doi:10.1145/1266894.1266918 dblp:conf/debs/CugolaMM07 fatcat:awpppt7ezzambeelhjbmlnqed4

Towards a common API for publish/subscribe

Peter Pietzuch, David Eyers, Samuel Kounev, Brian Shand
2007 Proceedings of the 2007 inaugural international conference on Distributed event-based systems - DEBS '07  
Over the last decade a wide range of publish/subscribe (pub/ sub) systems have come out of the research community.  ...  In this paper we propose a common API for pub/sub that is tailored towards research requirements.  ...  By including a lease duration in the call, we advocate system designs based on a soft-state approach for automatically removing stale state in the pub/ sub system.  ... 
doi:10.1145/1266894.1266924 dblp:conf/debs/PietzuchEKS07 fatcat:ghziwyl3offxhfhjftcbdthdhu

On Accurate Automatic Verification of Publish-Subscribe Architectures

Luciano Baresi, Carlo Ghezzi, Luca Mottola
2007 Proceedings / International Conference of Software Engineering  
Accurate models become feasible without incurring in state space explosion problems, thus enabling the automated verification of applications on top of realistic communication infrastructures.  ...  This way, Publish-Subscribe primitives become part of the specification language as additional, domain-specific, constructs.  ...  Real-time guarantees describe the ability of the Publish-Subscribe infrastructure to deliver messages within soft or hard real-time constraints, or without considering time at all.  ... 
doi:10.1109/icse.2007.57 dblp:conf/icse/BaresiGM07 fatcat:6tcqqd6uq5etjhlnty7xawsc4i

Probabilistic FIFO Ordering in Publish/Subscribe Networks

Amirhossein Malekpour, Antonio Carzaniga, Giovanni Toffetti Carughi, Fernando Pedone
2011 2011 IEEE 10th International Symposium on Network Computing and Applications  
In a best-effort publish/subscribe network, publications may be delivered out of order (e.g., violating FIFO order).  ...  We evaluate the performance of this ordering scheme empirically in terms of the reduction in out-of-order deliveries, the delay imposed by the latch time, and its automatic adaptability to variable network  ...  Soft-state messages labeled "knowledge" and "curiosity" flow downstream and upstream on the tree, and ensure ordered one-time delivery even in the presence of failure.  ... 
doi:10.1109/nca.2011.12 dblp:conf/nca/MalekpourCCP11 fatcat:r5tityydbzgvrhfs4l2xjsxdp4

Self-stabilizing Publish/Subscribe Systems: Algorithms and Evaluation [chapter]

Gero Mühl, Michael A. Jaeger, Klaus Herrmann, Torben Weis, Andreas Ulbrich, Ludger Fiege
2005 Lecture Notes in Computer Science  
The application of leasing is a common way to keep soft states.  ...  Exploiting IP multicast in content-based publish-subscribe systems.  ... 
doi:10.1007/11549468_73 fatcat:ncfcqgkhtbeu3ihgid3smdrwqm

Reliable and Highly Available Distributed Publish/Subscribe Service

Reza Sherafat Kazemzadeh, Hans-Arno Jacobsen
2009 2009 28th IEEE International Symposium on Reliable Distributed Systems  
This paper develops reliable distributed publish/subscriber algorithms with service availability in the face of concurrent crash failure of up to δ brokers.  ...  The reliability of service in our context refers to persource in-order and exactly-once delivery of publications to matching subscribers.  ...  Conclusions In this paper, we proposed a reliable distributed publish/subscribe approach that promises availability of service in the face of up to δ concurrent broker failures.  ... 
doi:10.1109/srds.2009.32 dblp:conf/srds/KazemzadehJ09 fatcat:l4u3giuopbcb5d2w6mt4k4fgjm

Maintaining QoS for publish/subscribe middleware in dynamic environments

Joe Hoffert, Douglas C. Schmidt
2009 Proceedings of the Third ACM International Conference on Distributed Event-Based Systems - DEBS '09  
Moreover, federal, state, and local authorities would want to register interest in the fused SAR data to monitor the status of current SAR operations.  ...  Interacting QoS Requirements SAR operations must manage multiple QoS requirements that interact with each other, e.g., data reliability so that enough data is received to be useful and low latency for soft  ... 
doi:10.1145/1619258.1619295 dblp:conf/debs/HoffertS09 fatcat:uiamnpvxxzd5jfemhvrjqhx6o4

Beaconing support in publish-subscribe middleware for vehicular applications

Vittoria Gianuzzi, Alessio Merlo
2010 Proceedings of the 2nd International Workshop on Middleware for Pervasive Mobile and Embedded Computing - M-MPAC '10  
To this aim, we discuss the design of a Publish-Subscribe based middleware for VANET applications, namely ACME, tailored to accomplish suitable queries over the beacons in a flexible and adaptive way,  ...  The protocol that has been standardized for communication in VANET is DSRC (Dedicated Short Range Communications), with a communication range varying from 300 1.  ...  MIDDLEWARE FOR VA ET APPLICATIO S: RELATED WORK VANET applications are mostly event-driven, thus the Publish Subscribe paradigm is a suitable choice.  ... 
doi:10.1145/1890791.1890795 dblp:conf/middleware/GianuzziM10 fatcat:4gi7bqegcvbdfbvfbjngkdu32m

Publisher Placement Algorithms in Content-Based Publish/Subscribe

Alex King Yeung Cheung, Hans-Arno Jacobsen
2010 2010 IEEE 30th International Conference on Distributed Computing Systems  
Many publish/subscribe systems implement a policy for clients to join to their physically closest broker to minimize transmission delays incurred on the clients' messages.  ...  However, the amount of delay reduced by this policy is only the tip of the iceberg as messages incur queuing, matching, transmission, and scheduling delays from traveling across potentially long distances in  ...  We are also very grateful to Serge Mankovskii (CA), CA, Sun Microsystems, NSERC, OCE, CFI, and ORF for their support in this research.  ... 
doi:10.1109/icdcs.2010.86 dblp:conf/icdcs/CheungJ10 fatcat:ndajcg343zgibam3s7uoivgezi
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