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CASPaxos: Replicated State Machines without logs
CASPaxos is a replicated state machine (RSM) protocol, an extension of Synod. Unlike Raft and Multi-Paxos, it doesn't use leader election and log replication, thus avoiding associated complexity. Its symmetric peer-to-peer approach achieves optimal commit latency in wide-area networks and doesn't cause transient unavailability when any (N−1)/2 of N nodes crash. The lightweight nature of CASPaxos allows new combinations of RSMs in the designs of distributed systems. For example, a representation of a key-value storage as a hashtable with independent RSM per key increases fault tolerance and improves performance on multi-core systems compared with a hashtable behind a single RSM.
This paper describes CASPaxos protocol, formally proves its safety properties, covers cluster membership change and evaluates the benefits of a CASPaxos-based key-value storage.
paxos  consensus 
yesterday by mpm
A Hitchhiker’s Guide to Consensus Algorithms – Hacker Noon
Don’t Panic. Behind every great cryptocurrency, there’s a great consensus algorithm. No consensus algorithm is perfect, but they each have their strengths. In the world of crypto, consensus…
consensus  byzantine  algorithms  blockchain 
6 days ago by griffey
A Hitchhiker’s Guide to Consensus Algorithms – Hacker Noon
No consensus algorithm is perfect, but they each have their strengths. In the world of crypto, consensus algorithms exist to prevent double spending. Here’s a quick rundown on some of the most popular consensus algorithms to date, from Blockchains to DAGs and everything in-between.
algorithms  blockchain  consensus 
7 days ago by dlkinney
A Hitchhiker’s Guide to Consensus Algorithms – Hacker Noon
Don’t Panic. Behind every great cryptocurrency, there’s a great consensus algorithm. No consensus algorithm is perfect, but they each have their strengths. In the world of crypto, consensus…
bitcoin  blockchain  consensus  article  !great  crypto  pos  pow 
7 days ago by alexmc
Do you need a Blockchain? Probably less than Wüst and Gervais think you do | Attack of the 50 Foot Blockchain
Wüst and Gervais' paper "Do you need a Blockchain?" is pretty good, but goes a bit far in claiming use cases for blockchains. You'll basically never need a so-called "permissioned blockchain."
blockchain  consensus  programming  system-design 
12 days ago by the-kenny
André Staltz - Open source without maintainers
what if we would minimize the consensus surface of open source project? If we agree to only a few things, then we are free to disagree in other aspects. Disagreements are painful when we have to choose one winner, because someone will end up disappointed. But disagreement means freedom when we don’t have to agree, because diversity of opinions on how and what to build are a great thing.
consensus  opensource  github  software  programming  maintenance 
15 days ago by npdoty
Sapien + DAOstack = Perfect Partnership – Sapien Network
talks about consensus algo based on community consensus, specifically the proof of value.
dao  blockchain  javascript  interesting  startup  whitepaper  medium  article  consensus  algorithm  proof-of-value 
15 days ago by mgan
Paxos derived | Hacker News
"In sum, something "fundamental" changes when you want to go fault-tolerant and tolerate node failure in an asynchronous system. When you combine faults and full-asynchrony, you get the FLP impossibility result. That means you lose progress! That is why Paxos does not guarantee making progress under a full asynchronous model with a crash failure."
paxos  consensus  algorithm 
17 days ago by dano
Critique of Buterin’s “A Proof of Stake Design Philosophy”
In this article, I take issue with several of the claims made by Vitalik Buterin in his Dec 2016 article “A Proof of Stake Design Philosophy”. My hope is that it sparks debate about proof-of-stake’s…
crypto  pow  pos  consensus  compare  bitcoin  ethereum  algorithm  philosophy  cryptography  future 
26 days ago by orlin
Microblogging / Paul Robert Lloyd
The web is agreement, but that doesn’t mean we agree to use the same websites.
via:feedbin  indieweb  microblog  Jekyll  web  standards  agreement  consensus  yes 
29 days ago by npdoty

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