#sharding

Tackling #ethereum’s #blockchain Trilemma via Serenity, Ethereum 2.0
▻https://hackernoon.com/tackling-ethereums-blockchain-trilemma-via-serenity-ethereum-2-0-1fb423a

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An overview of the impending transition towards Proof of Stake (Casper), #sharding, and Ethereum-flavored WebAssembly (eWasm)The following post is an academic-style piece written in April 2019. Depending on when you are reading this, much may have changed in the Ethereum roadmap.Introduction to Ethereum’s Scaling Issues & The Blockchain TrilemmaEthereum is a decentralized application platform that runs applications without any chance of fraud, censorship or third-party interference. Powering thousands of decentralized applications (dApps), Ethereum is hailed as one of the most defining digital currency projects of the era and is heavily utilized in both commercial and non-commercial settings. However, as the network continues to grow in terms of traffic, it has reached certain (...)

#proof-of-stake-casper #scalability

#harmony — A High-Throughput, Low-Latency Public #blockchain Platform for Decentralized Economies
▻https://hackernoon.com/harmony-a-high-throughput-low-latency-public-blockchain-platform-for-dec

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A High-Throughput, Low-Latency Public Blockchain Platform for Decentralized EconomiesAs blockchain technology marches forward in its quest for mass adoption, the biggest hurdle it faces is arguably scalability. More and more merchants the world over have warmed up to the possibility of accepting #crypto, particularly Bitcoin and Ether, as means of payment. But if crypto is to be considered a serious contender for a borderless payment solution, then it has to go head-to-head with the prevalent electronic payment services like Visa and Mastercard. And as things stand today, crypto is lagging far behind. Bitcoin can handle less than 10 TPS, while Ethereum can manage up to about 40 TPS on a good day. Compare this to Visa’s daily 2,000 TPS (which can theoretically scale up to ~50,000 TPS), (...)

#sharding

#postgresql’s Exciting features, you should know
▻https://hackernoon.com/postgresqls-exciting-features-you-should-know-a516a441b8c4?source=rss---

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PostgreSQL is a powerful,object-relational database system that extends the #sql language combined with many features that safely store and scale the most complicated data workloads.PostgreSQL comes with many features aimed to help developers build applications, administrators to protect data integrity and build fault-tolerant environments, and manage data no matter how big or small the dataset.Here, I pick some great PostgreSQL features you may not have taken a look at but really should, since they can help you get code into production faster, make easier and generally get things done with less code and less effort.InheritanceTable #inheritance allows extracting a common set of columns into a parent table with children defining additional fields.CREATE TABLE invoices ( invoice_number (...)

#postgresql-feature #sharding

#sharding writes with #mysql and increment offsets
▻https://hackernoon.com/sharding-writes-with-mysql-and-increment-offsets-48df32379563?source=rss

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Sharding Writes with MySQL and Increment OffsetsTL;DRwe shard writes and avoid conflicts using an increment offset on PKseach #data center contains local write serverswe use multi-source replication on read servers so they contain all the data from all data centers, partitioned by monthAt the beginning, things were simpleWe were using MySQL: one master for writing, and a few slaves for reading. Besides replication lag (more on that later), it worked fine. And then you scale. And then it fails! The master is a SPOF — “Single Point Of Failure”.Whether the process failed, the VM crashed, or we had to do maintenance on the server, having only one “master” to write to meant that the service was down for minutes. And this was not acceptable.The first thing we implemented was sharding based on the (...)

#data-replication #database

#ethereum Sharding Implementation — Prysmatic Labs
▻https://hackernoon.com/ethereum-sharding-implementation-prysmatic-labs-95a753edb073?source=rss-

Prysmatic Labs is building out the first sharding implementation for the Geth (go-ethereum) client, allowing the Ethereum network to process transactions at over 10x — 100x of its current speed!In this video we chat with Raul Jordan, who is the co-lead at Prysmatic Labs.Video of the interview :▻https://medium.com/media/3cd81d382eec38eaa40b0c0bdd5672d7/hrefLinks mentioned in this episode:Prysmatic Labs Website : ▻https://prysmaticlabs.com/Prysmatic Labs Github : ▻https://github.com/prysmaticlabs/geth-shardingPrysmatic Labs Chat (Gitter) : ▻https://gitter.im/prysmaticlabs/geth-sharding?source=orgpageThings discussed in this episode:Background [ 0:47–2:01 ]Prysmatic Labs Overview [ 2:02–5:48 ]Sharding Overview [ 5:49–12:09 ]Sharding In-Depth [ 12:10–22:54 ]Prysmatic Sharding approach [ 22:55–24:41 (...)

#crypto-transactions #prysmatic-labs #sharding-implementation #ethereum-sharding

#sharding centralizes #ethereum by selling you #scaling-In disguised as Scaling-Out
▻https://hackernoon.com/sharding-centralizes-ethereum-by-selling-you-scaling-in-disguised-as-sca

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The differences between Light-Clients & Fully-Validating NodesAre you wondering what that even means? Don’t worry, you will. Go make a cup of coffee first, it’s another long one. If you haven’t read this yet, start here:The Ethereum-blockchain size has exceeded 1TB, and yes, it’s an issueThe following is an exchange I had with Vitalik following the publication of the article above. Although initiated by his response to my article, the purpose of the exchange from my perspective became to extract the underlying reason him and many other Ethereum fans don’t see sharding as diminishing the integrity of the network it’s being applied to. Fortunately he was cooperatively replying to the questions I asked, which were intentionally done to break down the logic so we could ultimately arrive to (...)

#bitcoin #blockchain

Create a #mongodb sharded cluster with SSL enabled
▻https://hackernoon.com/create-a-mongodb-sharded-cluster-with-ssl-enabled-dace56bc7a17?source=rs

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Near two months ago I started learning MongoDB seriously. At Growthfunnel.io we use MongoDB, and we need to scale our system for a large volume of data(approximately 6TB+) and high throughput. #sharding, database #clustering it was all new to me, so I started learning. The purpose of this article is sharing and validating my knowledge with the community. I’m not an expert on any of this. I’m just sharing what have I have learned.This tutorial explains step by step how to create a MongoDB sharded cluster. We will deploy this demo on a single machine.Prerequisites:MongoDB — 3.6.2OpenSSLNodeJSBashBasic knowledge of mongodb shardingWhat is database sharding anyway?Sharding is a process of splitting data across multiple machines that separate large database into smaller, faster, easily managed parts (...)

#shard #mongo

#domain #sharding revisited | High Performance Web Sites
▻http://www.stevesouders.com/blog/2013/09/05/domain-sharding-revisited

It’s best to shard across only two domains. You can test larger values, but previous tests show two to be the optimal choice. Tags: domain sharding #webperf

Revisiting the “Cookieless Domain” Recommendation
▻http://www.jonathanklein.net/2014/02/revisiting-cookieless-domain.html

“serving #CSS files from the same domain as the base page [is] a performance win” Tags: #webperf #cookie #sharding #domaine CSS