Paxos is a family of protocols for solving consensus in a network of unreliable or fallible processors.Consensus is the process of agreeing on one result among a group of participants. This problem becomes difficult when the participants or their communications may experience failures. Consensus protocols are the basis for the state machine replication approach to distributed computing, as suggested by Leslie Lamport and surveyed by Fred Schneider. State machine replication is a technique for converting an algorithm into a fault-tolerant, distributed implementation. Ad-hoc techniques may leave important cases of failures unresolved. The principled approach proposed by Lamport et al. ensures all cases are handled safely. The Paxos protocol was first submitted in 1989 and named after a fictional legislative consensus system used on the Paxos island in Greece, where Lamport wrote that the parliament had to function "even though legislators continually wandered in and out of the parliamentary Chamber". It was later published as a journal article in 1998. The Paxos family of protocols includes a spectrum of trade-offs between the number of processors, number of message delays before learning the agreed value, the activity level of individual participants, number of messages sent, and types of failures. Although no deterministic fault-tolerant consensus protocol can guarantee progress in an asynchronous network (a result proved in a paper by Fischer, Lynch and Paterson), Paxos guarantees safety (consistency), and the conditions that could prevent it from making progress are difficult to provoke. Paxos is usually used where durability is required (for example, to replicate a file or a database), in which the amount of durable state could be large. The protocol attempts to make progress even during periods when some bounded number of replicas are unresponsive. There is also a mechanism to drop a permanently failed replica or to add a new replica. (Wikipedia).
Computer Basics: What Is a Computer?
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Learn computer science terminology. We'll take a dive into understanding some of the terms used in computer science and software development. The video starts with the basics and then gets more advanced. Video from Forrest Knight. Check out his channel: https://www.youtube.com/channel/UC
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https://www.math.ias.edu/seminars/abstract?event=83684
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Wicked Good Ruby 2013 - Bloom: A Language for Disorderly Distributed Programming
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From playlist ElixirDaze 2018
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STEMerch Store: https://stemerch.com/Support the Channel: https://www.patreon.com/zachstar PayPal(one time donation): https://www.paypal.me/ZachStarYT Part 2: https://www.youtube.com/watch?v=q-Vqxugd6HQ Versión en español de este video: https://www.youtube.com/watch?v=29OHkumNQqE In thi
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From playlist EmberConf 2014
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From playlist MIT 6.824 Distributed Systems (Spring 2020)
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Why Study Computer Science? | College Majors | College Degrees | Study Hall
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STEMerch Store: https://stemerch.com/Support the Channel: https://www.patreon.com/zachstar PayPal(one time donation): https://www.paypal.me/ZachStarYT Versión en español de este video: https://www.youtube.com/watch?v=TmyieeucUQo Computer science majors have to learn a different kind of m
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