Coordination-Free Byzantine Replication with Minimal Communication Costs

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Coordination-Free Byzantine Replication with Minimal Communication Costs
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State-of-the-art fault-tolerant and federated data management systems rely on fully-replicated designs in which all participants have equivalent roles. Consequently, these systems have only limited scalability and are ill-suited for high-performance data management. As an alternative, we propose a hierarchical design in which a Byzantine cluster manages data, while an arbitrary number of learners can reliable learn these updates and use the corresponding data. To realize our design, we propose the delayed-replication algorithm, an efficient solution to the Byzantine learner problem that is central to our design. The delayed-replication algorithm is coordination-free, scalable, and has minimal communication cost for all participants involved. In doing so, the delayed-broadcast algorithm opens the door to new high-performance fault-tolerant and federated data management systems. To illustrate this, we show that the delayed-replication algorithm is not only useful to support specialized learners, but can also be used to reduce the overall communication cost of permissioned blockchains and to improve their storage scalability.
Exploratory data analysis Decision theory Information and communications technology System programming Computer Replication (computing)
Standard deviation Machine vision Reading (process) Service (economics) Information overload Multiplication sign Source code Virtual machine Data analysis Client (computing) Database transaction 2 (number) Optical disc drive Workload Process (computing) Resource allocation Metropolitan area network Form (programming) Social class Forcing (mathematics) Information and communications technology Total S.A. Prediction Cartesian coordinate system Scalability Replication (computing) Process (computing) Integrated development environment Personal digital assistant Telecommunication Internet service provider Self-organization Physical system Internationalization and localization Asynchronous Transfer Mode
Logical constant Machine vision Reading (process) Group action Information Streaming media Database transaction Database transaction Sequence Telecommunication Lastteilung Resultant Physical system
Game controller Algorithm Interior (topology) State of matter Multiplication sign Data storage device Mereology Total S.A. Database transaction Event horizon 2 (number) Neuroinformatik Sequence Fraction (mathematics) Information Logic gate Partition (number theory) Physical system Default (computer science) Arm Weight Model theory Database transaction Partition (number theory) Exploratory data analysis Theorem Summierbarkeit Quicksort Mathematical optimization
Web page Axiom of choice Decision theory Algorithm Execution unit Information and communications technology Sheaf (mathematics) Special unitary group Database transaction Line (geometry) Mereology Replication (computing) Sequence Replication (computing) Goodness of fit Process (computing) Hash function Object (grammar) Message passing Logic gate Exception handling Task (computing) Identical particles
Root Hash function Network topology Term (mathematics) Network topology Speech synthesis Mereology Routing Sequence
NP-hard Group action Algorithm Euler angles Code Combinational logic Insertion loss Mereology Database transaction Number Sequence Causality Network topology Message passing Social class Addition Matching (graph theory) Projective plane Shared memory Total S.A. Database transaction Cartesian coordinate system Message passing Root Personal digital assistant Uniformer Raum Order (biology) Theorem Summierbarkeit Routing
Area Cluster sampling Suite (music) Electronic data processing View (database) Data recovery Machine vision Data storage device Data storage device Scalability Replication (computing) Neuroinformatik Fraction (mathematics) Chain Casting (performing arts) Propagator System programming Theorem Website Block (periodic table) Communications protocol Resultant Physical system
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